- Miguel Ángel Moriñigo;
Irina Levchuk; Irina Levchuk;Irina Levchuk
Harvested from ORCID Public Data FileIrina Levchuk in OpenAIRE Riku Vahala; +7 AuthorsRiku Vahala
Harvested from ORCID Public Data FileRiku Vahala in OpenAIREMiguel Ángel Moriñigo; Irina Levchuk; Irina Levchuk;Irina Levchuk
Harvested from ORCID Public Data FileIrina Levchuk in OpenAIRE Riku Vahala; Riku Vahala
Harvested from ORCID Public Data FileRiku Vahala in OpenAIRE M.A. Manzano; Petr Dzik; Juan José Rueda-Márquez;M.A. Manzano
Harvested from ORCID Public Data FileM.A. Manzano in OpenAIRE Mika Sillanpää; Mika Sillanpää
Harvested from ORCID Public Data FileMika Sillanpää in OpenAIRE Javier Moreno-Andrés; Javier Moreno-Andrés; Tomáš Homola;Javier Moreno-Andrés
Harvested from ORCID Public Data FileJavier Moreno-Andrés in OpenAIREAbstract Hybrid TiO2/SiO2 thin films deposited by material printing technique on flexible substrates were prepared, characterized and tested for solar photocatalytic disinfection. Effect of surface hydrophilicity/hydrophobicity of printed coatings on photocatalytic disinfection was studied by means of (i) drinking water contaminated with natural consortia of fecal bacteria (gram-negative: Escherichia coli and total coliforms; gram-positive: Enterococci), and (ii) seawater containing pathogenic gram-negative bacteria (Vibrio owensii, Vibrio alfacsensis and Vibrio harveyi). Inactivation of gram-negative bacteria in drinking water with fecal contamination by solar photocatalysis was slightly more efficient than solar disinfection, while for gram-positive bacteria similar efficiency was observed. These results, in combination with observed release of titanium from coatings (detected by means of inductively coupled plasma atomic emission spectrometer), indicate that TiO2/SiO2 needs further improvements for solar photocatalytic disinfection of drinking water. Efficiency of seawater disinfection towards gram-negative Vibrio spp. (Vibrio owensii, Vibrio alfacsensis and Vibrio harveyi) was significantly enhanced when TiO2/SiO2 coatings were used under natural solar light. Moreover, hydrophobic thin films led to faster Vibrio spp. inactivation as compared to hydrophilic ones, which was attributed to higher bacteria adhesion on hydrophobic coatings. However, decrease of photocatalytic activity of hydrophobic TiO2/SiO2 coatings was observed after ten experimental cycles mainly due to deposition of salts on the surface of photocatalyst. Generally, results of this study suggest that autochthonous bacteria such as Vibrio spp. in seawater are significantly more resistant to solar disinfection in comparison with not autochthonous bacteria such as Escherichia coli, total coliforms and Enterococci in contaminated drinking water.
Access RoutesGreen hybrid 20 citations 20 popularity Top 10% influence Average impulse Top 10% 
Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.solener.2019.09.038&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Miguel Ángel Moriñigo; Irina Levchuk; Irina Levchuk;
Irina Levchuk
Harvested from ORCID Public Data FileIrina Levchuk in OpenAIRE Riku Vahala; +7 AuthorsRiku Vahala
Harvested from ORCID Public Data FileRiku Vahala in OpenAIREMiguel Ángel Moriñigo; Irina Levchuk; Irina Levchuk;Irina Levchuk
Harvested from ORCID Public Data FileIrina Levchuk in OpenAIRE Riku Vahala; Riku Vahala
Harvested from ORCID Public Data FileRiku Vahala in OpenAIRE M.A. Manzano; Petr Dzik; Juan José Rueda-Márquez;M.A. Manzano
Harvested from ORCID Public Data FileM.A. Manzano in OpenAIRE Mika Sillanpää; Mika Sillanpää
Harvested from ORCID Public Data FileMika Sillanpää in OpenAIRE Javier Moreno-Andrés; Javier Moreno-Andrés; Tomáš Homola;Javier Moreno-Andrés
Harvested from ORCID Public Data FileJavier Moreno-Andrés in OpenAIREAbstract Hybrid TiO2/SiO2 thin films deposited by material printing technique on flexible substrates were prepared, characterized and tested for solar photocatalytic disinfection. Effect of surface hydrophilicity/hydrophobicity of printed coatings on photocatalytic disinfection was studied by means of (i) drinking water contaminated with natural consortia of fecal bacteria (gram-negative: Escherichia coli and total coliforms; gram-positive: Enterococci), and (ii) seawater containing pathogenic gram-negative bacteria (Vibrio owensii, Vibrio alfacsensis and Vibrio harveyi). Inactivation of gram-negative bacteria in drinking water with fecal contamination by solar photocatalysis was slightly more efficient than solar disinfection, while for gram-positive bacteria similar efficiency was observed. These results, in combination with observed release of titanium from coatings (detected by means of inductively coupled plasma atomic emission spectrometer), indicate that TiO2/SiO2 needs further improvements for solar photocatalytic disinfection of drinking water. Efficiency of seawater disinfection towards gram-negative Vibrio spp. (Vibrio owensii, Vibrio alfacsensis and Vibrio harveyi) was significantly enhanced when TiO2/SiO2 coatings were used under natural solar light. Moreover, hydrophobic thin films led to faster Vibrio spp. inactivation as compared to hydrophilic ones, which was attributed to higher bacteria adhesion on hydrophobic coatings. However, decrease of photocatalytic activity of hydrophobic TiO2/SiO2 coatings was observed after ten experimental cycles mainly due to deposition of salts on the surface of photocatalyst. Generally, results of this study suggest that autochthonous bacteria such as Vibrio spp. in seawater are significantly more resistant to solar disinfection in comparison with not autochthonous bacteria such as Escherichia coli, total coliforms and Enterococci in contaminated drinking water.
Access RoutesGreen hybrid 20 citations 20 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.solener.2019.09.038&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - FWF| Object identification problems: numerical analysis ,EC| OCLOC Larisa Karpenko-Jereb;
Larisa Karpenko-Jereb
Harvested from ORCID Public Data FileLarisa Karpenko-Jereb in OpenAIRE Victor A. Kovtunenko; Victor A. Kovtunenko;Victor A. Kovtunenko
Harvested from ORCID Public Data FileVictor A. Kovtunenko in OpenAIREThis paper is devoted to study the electrochemical behavior of Pt catalyst in a polymer electrolyte fuel cell at various operating conditions and at different electric potential difference (also known as voltage) cycling applied in accelerated stress tests. The degradation of platinum is considered with respect to the Pt ion dissolution and the Pt oxide coverage of catalyst described by a one-dimensional model. In the model, degradation rate increases with temperature and decreasing particle diameter of Pt nano-particles. The theoretical study of the underlying diffusion system with the nonlinear reactions is presented by analytical methods and gives explicit solutions through a first integral of the ODE system. Numerical tests are obtained using a second order implicit-explicit scheme. The computer simulation shows that the lifetime of the catalyst depends on the voltage profile and the upper potential level. By this Pt mass loss is more significant at the membrane surface than at the gas diffusion layer.
Access RoutesGreen bronze 13 citations 13 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2021.229693&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - FWF| Object identification problems: numerical analysis ,EC| OCLOC Larisa Karpenko-Jereb;
Larisa Karpenko-Jereb
Harvested from ORCID Public Data FileLarisa Karpenko-Jereb in OpenAIRE Victor A. Kovtunenko; Victor A. Kovtunenko;Victor A. Kovtunenko
Harvested from ORCID Public Data FileVictor A. Kovtunenko in OpenAIREThis paper is devoted to study the electrochemical behavior of Pt catalyst in a polymer electrolyte fuel cell at various operating conditions and at different electric potential difference (also known as voltage) cycling applied in accelerated stress tests. The degradation of platinum is considered with respect to the Pt ion dissolution and the Pt oxide coverage of catalyst described by a one-dimensional model. In the model, degradation rate increases with temperature and decreasing particle diameter of Pt nano-particles. The theoretical study of the underlying diffusion system with the nonlinear reactions is presented by analytical methods and gives explicit solutions through a first integral of the ODE system. Numerical tests are obtained using a second order implicit-explicit scheme. The computer simulation shows that the lifetime of the catalyst depends on the voltage profile and the upper potential level. By this Pt mass loss is more significant at the membrane surface than at the gas diffusion layer.
Access RoutesGreen bronze 13 citations 13 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2021.229693&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - IRC ,AKA| Development and in operando characterization of solid redox boosters for high energy density redox flow batteries (redoxSolid Flow) ,EC| SOFT-PHOTOCONVERSION ,SFI| Designing Reactive Functionalised Soft Interfaces – Self-healing soft materials for solar energy conversion, energy storage, and sustainable low cost hydrogen production
Molina-Osorio, Andrés F.; Molina-Osorio, Andrés F.
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesMolina-Osorio, Andrés F. in OpenAIRE Gamero-Quijano, Alonso; Gamero-Quijano, Alonso
Harvested from ORCID Public Data FileGamero-Quijano, Alonso in OpenAIRE Peljo, Pekka; Peljo, Pekka
Harvested from ORCID Public Data FilePeljo, Pekka in OpenAIRE Scanlon, Micheál D.; Scanlon, Micheál D.
Harvested from ORCID Public Data FileScanlon, Micheál D. in OpenAIREAbstract Breakthrough alternative technologies are urgently required to alleviate the critical need to decarbonise our energy supply. We showcase non-conventional approaches to battery and solar energy conversion and storage (ECS) system designs that harness key attributes of immiscible electrolyte solutions, especially the membraneless separation of redox active species and ability to electrify certain liquid–liquid interfaces. We critically evaluate the recent development of membraneless redox flow batteries based on biphasic systems, where one redox couple is confined to an immiscible ionic liquid or organic solvent phase, and the other couple to an aqueous phase. Common to all solar ECS devices are the abilities to harvest light, leading to photo-induced charge carrier separation, and separate the products of the photo-reaction, minimising recombination. We summarise recent progress towards achieving this accepted solar ECS design using immiscible electrolyte solutions in photo-ionic cells, to generate redox fuels, and biphasic “batch” water splitting, to generate solar fuels.
Access RoutesGreen hybrid add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.coelec.2020.01.013&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - IRC ,AKA| Development and in operando characterization of solid redox boosters for high energy density redox flow batteries (redoxSolid Flow) ,EC| SOFT-PHOTOCONVERSION ,SFI| Designing Reactive Functionalised Soft Interfaces – Self-healing soft materials for solar energy conversion, energy storage, and sustainable low cost hydrogen production Molina-Osorio, Andrés F.;
Molina-Osorio, Andrés F.
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesMolina-Osorio, Andrés F. in OpenAIRE Gamero-Quijano, Alonso; Gamero-Quijano, Alonso
Harvested from ORCID Public Data FileGamero-Quijano, Alonso in OpenAIRE Peljo, Pekka; Peljo, Pekka
Harvested from ORCID Public Data FilePeljo, Pekka in OpenAIRE Scanlon, Micheál D.; Scanlon, Micheál D.
Harvested from ORCID Public Data FileScanlon, Micheál D. in OpenAIREAbstract Breakthrough alternative technologies are urgently required to alleviate the critical need to decarbonise our energy supply. We showcase non-conventional approaches to battery and solar energy conversion and storage (ECS) system designs that harness key attributes of immiscible electrolyte solutions, especially the membraneless separation of redox active species and ability to electrify certain liquid–liquid interfaces. We critically evaluate the recent development of membraneless redox flow batteries based on biphasic systems, where one redox couple is confined to an immiscible ionic liquid or organic solvent phase, and the other couple to an aqueous phase. Common to all solar ECS devices are the abilities to harvest light, leading to photo-induced charge carrier separation, and separate the products of the photo-reaction, minimising recombination. We summarise recent progress towards achieving this accepted solar ECS design using immiscible electrolyte solutions in photo-ionic cells, to generate redox fuels, and biphasic “batch” water splitting, to generate solar fuels.
Access RoutesGreen hybrid add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.coelec.2020.01.013&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - F. Sanz-Pérez; Miguel Ángel Hernandez; M. P. Domínguez; G. San Miguel;
G. San Miguel
Harvested from ORCID Public Data FileG. San Miguel in OpenAIREBiomass gasification processes generate large amounts of solid. The aim of this work is to characterize the particles produced at a demonstration scale downdraft multi-stage gasification plant running on pinewood. The results have been used to understand their formation mechanism, evaluate potential applications and determine their hazardousness to human health and the environment. Chemical, physical, morphological and textural analyses suggest that most of the particles are formed via gas phase condensation reactions, with a very limited proportion resulting from direct carbonization of the original biomass feedstock. This is confirmed by a very limited micropore structure, surface area and adsorption capacity, making the particles unsuitable for use as an adsorbent in gas and water treatment applications. The particles exhibit superior fuel properties in terms of carbon content, heating value and thermal stability, which may be associated with the high temperatures at which they are generated. Due to their biomass origin, the particles contain a high proportion of calcium, potassium, magnesium and other plant micronutrients that could be beneficial if the material is used for soil conditioning and fertilizing. Regarding particle size distribution, most of the particles fitted in the range between 100 and 250 μm, with only 0.5 wt% smaller than 30 μm. This is too large for a carbon black surrogate but minimizes health risks associated with exposure to the lower regions of the respiratory tract. The concentration of biologically active PAH is sufficiently low to represent no hazard to the environment or human health.
42 citations 42 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biombioe.2012.09.049&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - F. Sanz-Pérez; Miguel Ángel Hernandez; M. P. Domínguez; G. San Miguel;
G. San Miguel
Harvested from ORCID Public Data FileG. San Miguel in OpenAIREBiomass gasification processes generate large amounts of solid. The aim of this work is to characterize the particles produced at a demonstration scale downdraft multi-stage gasification plant running on pinewood. The results have been used to understand their formation mechanism, evaluate potential applications and determine their hazardousness to human health and the environment. Chemical, physical, morphological and textural analyses suggest that most of the particles are formed via gas phase condensation reactions, with a very limited proportion resulting from direct carbonization of the original biomass feedstock. This is confirmed by a very limited micropore structure, surface area and adsorption capacity, making the particles unsuitable for use as an adsorbent in gas and water treatment applications. The particles exhibit superior fuel properties in terms of carbon content, heating value and thermal stability, which may be associated with the high temperatures at which they are generated. Due to their biomass origin, the particles contain a high proportion of calcium, potassium, magnesium and other plant micronutrients that could be beneficial if the material is used for soil conditioning and fertilizing. Regarding particle size distribution, most of the particles fitted in the range between 100 and 250 μm, with only 0.5 wt% smaller than 30 μm. This is too large for a carbon black surrogate but minimizes health risks associated with exposure to the lower regions of the respiratory tract. The concentration of biologically active PAH is sufficiently low to represent no hazard to the environment or human health.
42 citations 42 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biombioe.2012.09.049&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - EC| GrapheneCore3 ,WT
The high surface area, electrical and mechanical properties of carbon nanotube (CNT) composites has rendered them promising candidates for structural power composites. Nevertheless, it is important to understand their mechanical behaviour before they are applied in energy storage devices amid the safety concerns. This work explores the nail penetration behaviours of supercapacitor specimens consisting of CNT electrodes and pseudocapacitor specimens with carbon nanotube-polyaniline (CNT/PANI) electrodes. Specimens with and without electrolyte were tested. The dry cells without electrolyte follow a power law behaviour, while the wet cells with the electrolyte exhibit a piece-wise nonlinear relationship. The force, voltage and temperature of the supercapacitor were recorded during the nail penetration test. No temperature change or overheating was observed after short-circuit. Moreover, electrochemical testing is performed before and after the specimen penetration. The cyclic voltammetry shows the dramatic loss of capacitance, changing the cell behaviour from capacitor to resistor-like manner. Johnson-Cook model was used to predict the nail penetration behaviour. The coefficients of Johnson-Cook model are calibrated from the experimental load-displacement curves. The finite element model predictions are in a good agreement with the experimental results.
Access RoutesGreen gold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3389/fmats.2021.741541&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - EC| GrapheneCore3 ,WT
The high surface area, electrical and mechanical properties of carbon nanotube (CNT) composites has rendered them promising candidates for structural power composites. Nevertheless, it is important to understand their mechanical behaviour before they are applied in energy storage devices amid the safety concerns. This work explores the nail penetration behaviours of supercapacitor specimens consisting of CNT electrodes and pseudocapacitor specimens with carbon nanotube-polyaniline (CNT/PANI) electrodes. Specimens with and without electrolyte were tested. The dry cells without electrolyte follow a power law behaviour, while the wet cells with the electrolyte exhibit a piece-wise nonlinear relationship. The force, voltage and temperature of the supercapacitor were recorded during the nail penetration test. No temperature change or overheating was observed after short-circuit. Moreover, electrochemical testing is performed before and after the specimen penetration. The cyclic voltammetry shows the dramatic loss of capacitance, changing the cell behaviour from capacitor to resistor-like manner. Johnson-Cook model was used to predict the nail penetration behaviour. The coefficients of Johnson-Cook model are calibrated from the experimental load-displacement curves. The finite element model predictions are in a good agreement with the experimental results.
Access RoutesGreen gold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3389/fmats.2021.741541&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Steven Beale;
Steven Beale
Harvested from ORCID Public Data FileSteven Beale in OpenAIREAbstract A standard mechanical engineering mass transfer analysis is adapted to obtain performance calculations for the cathode of a typical polymer electrolyte membrane fuel cell. Mathematical details are provided and sample calculations performed, based on a number of simplifying assumptions. The relative advantages of low and high-mass transfer formulations are critically appraised and compared to a highly-simplified method.
12 citations 12 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijhydene.2015.05.074&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Steven Beale;
Steven Beale
Harvested from ORCID Public Data FileSteven Beale in OpenAIREAbstract A standard mechanical engineering mass transfer analysis is adapted to obtain performance calculations for the cathode of a typical polymer electrolyte membrane fuel cell. Mathematical details are provided and sample calculations performed, based on a number of simplifying assumptions. The relative advantages of low and high-mass transfer formulations are critically appraised and compared to a highly-simplified method.
12 citations 12 popularity Top 10% influence Average impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijhydene.2015.05.074&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - EC| NANO-CAT Marcos Vera;
Marcos Vera
Harvested from ORCID Public Data FileMarcos Vera in OpenAIRE Kaspar Andreas Friedrich; Kaspar Andreas Friedrich
Harvested from ORCID Public Data FileKaspar Andreas Friedrich in OpenAIRE Daniel Garcia Sanchez; Daniel Garcia Sanchez
Harvested from ORCID Public Data FileDaniel Garcia Sanchez in OpenAIRE Pablo A. García-Salaberri; +2 AuthorsPablo A. García-Salaberri
Harvested from ORCID Public Data FilePablo A. García-Salaberri in OpenAIRE Marcos Vera; Marcos Vera
Harvested from ORCID Public Data FileMarcos Vera in OpenAIRE Kaspar Andreas Friedrich; Kaspar Andreas Friedrich
Harvested from ORCID Public Data FileKaspar Andreas Friedrich in OpenAIRE Daniel Garcia Sanchez; Daniel Garcia Sanchez
Harvested from ORCID Public Data FileDaniel Garcia Sanchez in OpenAIRE Pablo A. García-Salaberri; Pablo A. García-Salaberri;Pablo A. García-Salaberri
Harvested from ORCID Public Data FilePablo A. García-Salaberri in OpenAIRE Pierre Boillat; Pierre Boillat
Harvested from ORCID Public Data FilePierre Boillat in OpenAIREAbstract Proper water management plays an essential role in the performance and durability of Polymer Electrolyte Fuel Cells (PEFCs), but it is challenged by the variety of water transport phenomena that take place in these devices. Previous experimental work has shown the existence of fluctuations between low and high current density levels in PEFCs operated with wet hydrogen and dry air feed. The alternation between both performance states is accompanied by strong changes in the high frequency resistance, suggesting a cyclic hydration and dehydration of the membrane. This peculiar scenario is examined here considering liquid water distributions from neutron imaging and predictions from a 3D two-phase non-isothermal model. The results show that the hydration-dehydration cycles are triggered by the periodic condensation and shedding of liquid water at the anode inlet. The input of liquid water humidifies the anode channel and offsets the membrane dry-out induced by the dry air stream, thus leading to the high-performance state. When liquid water is flushed out of the anode channel, the dehydration process takes over, and the cell comes back to the low-performance state. The predicted amplitude of the current oscillations grows with decreasing hydrogen and increasing air flow rates, in agreement with previous experimental data.
Access RoutesGreen bronze 57 citations 57 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2017.03.155&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - EC| NANO-CAT Marcos Vera;
Marcos Vera
Harvested from ORCID Public Data FileMarcos Vera in OpenAIRE Kaspar Andreas Friedrich; Kaspar Andreas Friedrich
Harvested from ORCID Public Data FileKaspar Andreas Friedrich in OpenAIRE Daniel Garcia Sanchez; Daniel Garcia Sanchez
Harvested from ORCID Public Data FileDaniel Garcia Sanchez in OpenAIRE Pablo A. García-Salaberri; +2 AuthorsPablo A. García-Salaberri
Harvested from ORCID Public Data FilePablo A. García-Salaberri in OpenAIRE Marcos Vera; Marcos Vera
Harvested from ORCID Public Data FileMarcos Vera in OpenAIRE Kaspar Andreas Friedrich; Kaspar Andreas Friedrich
Harvested from ORCID Public Data FileKaspar Andreas Friedrich in OpenAIRE Daniel Garcia Sanchez; Daniel Garcia Sanchez
Harvested from ORCID Public Data FileDaniel Garcia Sanchez in OpenAIRE Pablo A. García-Salaberri; Pablo A. García-Salaberri;Pablo A. García-Salaberri
Harvested from ORCID Public Data FilePablo A. García-Salaberri in OpenAIRE Pierre Boillat; Pierre Boillat
Harvested from ORCID Public Data FilePierre Boillat in OpenAIREAbstract Proper water management plays an essential role in the performance and durability of Polymer Electrolyte Fuel Cells (PEFCs), but it is challenged by the variety of water transport phenomena that take place in these devices. Previous experimental work has shown the existence of fluctuations between low and high current density levels in PEFCs operated with wet hydrogen and dry air feed. The alternation between both performance states is accompanied by strong changes in the high frequency resistance, suggesting a cyclic hydration and dehydration of the membrane. This peculiar scenario is examined here considering liquid water distributions from neutron imaging and predictions from a 3D two-phase non-isothermal model. The results show that the hydration-dehydration cycles are triggered by the periodic condensation and shedding of liquid water at the anode inlet. The input of liquid water humidifies the anode channel and offsets the membrane dry-out induced by the dry air stream, thus leading to the high-performance state. When liquid water is flushed out of the anode channel, the dehydration process takes over, and the cell comes back to the low-performance state. The predicted amplitude of the current oscillations grows with decreasing hydrogen and increasing air flow rates, in agreement with previous experimental data.
Access RoutesGreen bronze 57 citations 57 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2017.03.155&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Chimentao, Ricardo J.;
Chimentao, Ricardo J.
Harvested from ORCID Public Data FileChimentao, Ricardo J. in OpenAIRE Herrera, Jose E.; Kwak, Jahun;Herrera, Jose E.
Harvested from ORCID Public Data FileHerrera, Jose E. in OpenAIRE Medina, F.; +2 AuthorsMedina, F.
Harvested from ORCID Public Data FileMedina, F. in OpenAIRE Chimentao, Ricardo J.; Chimentao, Ricardo J.
Harvested from ORCID Public Data FileChimentao, Ricardo J. in OpenAIRE Herrera, Jose E.; Kwak, Jahun;Herrera, Jose E.
Harvested from ORCID Public Data FileHerrera, Jose E. in OpenAIRE Medina, F.; Wang, Yong;Medina, F.
Harvested from ORCID Public Data FileMedina, F. in OpenAIRE Peden, Charles H.F.; Peden, Charles H.F.
Harvested from ORCID Public Data FilePeden, Charles H.F. in OpenAIREAbstract Sodium-promoted vanadium oxide catalysts supported on MCM-41 and TiO 2 (anatase) were investigated for the partial oxidation of ethanol to acetaldehyde. The catalysts were prepared by incipient wetness impregnation with a vanadium oxide content of 6 wt.%. The experimental characterization was performed by X-ray diffraction (XRD), N 2 adsorption, temperature-programmed reduction (TPR), and diffuse reflectance UV–vis. Temperature-programmed oxidation (TPO) was also used to identify carbon deposits on the spent catalysts. The presence of sodium plays a strong role in the dispersion and reducibility of the vanadium species as detected by TPR analysis and optical absorption spectroscopy. While sodium addition increases the dispersion of the VO x species, its presence also decreases their reducibility. Additionally, TPO of the spent catalysts revealed that an increase in the Na loading decreases the carbon deposition during reaction. In the case of the catalysts supported on MCM-41, these modifications were mirrored by a change in the activity and selectivity to acetaldehyde. Additionally, on the VO x /TiO 2 catalysts the catalytic activity decreased with increasing sodium content in the catalyst . A model in which sodium affects dispersion, reducibility and also acidity of the supported-vanadia species is proposed to explain all these observations.
37 citations 37 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apcata.2007.08.024&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Chimentao, Ricardo J.;
Chimentao, Ricardo J.
Harvested from ORCID Public Data FileChimentao, Ricardo J. in OpenAIRE Herrera, Jose E.; Kwak, Jahun;Herrera, Jose E.
Harvested from ORCID Public Data FileHerrera, Jose E. in OpenAIRE Medina, F.; +2 AuthorsMedina, F.
Harvested from ORCID Public Data FileMedina, F. in OpenAIRE Chimentao, Ricardo J.; Chimentao, Ricardo J.
Harvested from ORCID Public Data FileChimentao, Ricardo J. in OpenAIRE Herrera, Jose E.; Kwak, Jahun;Herrera, Jose E.
Harvested from ORCID Public Data FileHerrera, Jose E. in OpenAIRE Medina, F.; Wang, Yong;Medina, F.
Harvested from ORCID Public Data FileMedina, F. in OpenAIRE Peden, Charles H.F.; Peden, Charles H.F.
Harvested from ORCID Public Data FilePeden, Charles H.F. in OpenAIREAbstract Sodium-promoted vanadium oxide catalysts supported on MCM-41 and TiO 2 (anatase) were investigated for the partial oxidation of ethanol to acetaldehyde. The catalysts were prepared by incipient wetness impregnation with a vanadium oxide content of 6 wt.%. The experimental characterization was performed by X-ray diffraction (XRD), N 2 adsorption, temperature-programmed reduction (TPR), and diffuse reflectance UV–vis. Temperature-programmed oxidation (TPO) was also used to identify carbon deposits on the spent catalysts. The presence of sodium plays a strong role in the dispersion and reducibility of the vanadium species as detected by TPR analysis and optical absorption spectroscopy. While sodium addition increases the dispersion of the VO x species, its presence also decreases their reducibility. Additionally, TPO of the spent catalysts revealed that an increase in the Na loading decreases the carbon deposition during reaction. In the case of the catalysts supported on MCM-41, these modifications were mirrored by a change in the activity and selectivity to acetaldehyde. Additionally, on the VO x /TiO 2 catalysts the catalytic activity decreased with increasing sodium content in the catalyst . A model in which sodium affects dispersion, reducibility and also acidity of the supported-vanadia species is proposed to explain all these observations.
37 citations 37 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apcata.2007.08.024&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - ARC| Moral vitalism: understanding the foundations of righteous violence within everyday secular thought ,FCT| Center for Research and Social Intervention Bastian, Brock;
Bastian, Brock
Harvested from ORCID Public Data FileBastian, Brock in OpenAIRE Vauclair, Christin-Melanie; Loughnan, Steve;Vauclair, Christin-Melanie
Harvested from ORCID Public Data FileVauclair, Christin-Melanie in OpenAIRE Bain, Paul; +29 AuthorsBain, Paul
Harvested from ORCID Public Data FileBain, Paul in OpenAIRE Bastian, Brock; Bastian, Brock
Harvested from ORCID Public Data FileBastian, Brock in OpenAIRE Vauclair, Christin-Melanie; Loughnan, Steve;Vauclair, Christin-Melanie
Harvested from ORCID Public Data FileVauclair, Christin-Melanie in OpenAIRE Bain, Paul; Ashokkumar, Ashwini;Bain, Paul
Harvested from ORCID Public Data FileBain, Paul in OpenAIRE Becker, Maja; Bilewicz, Michał; Collier-Baker, Emma;Becker, Maja
Harvested from ORCID Public Data FileBecker, Maja in OpenAIRE Crespo, Carla; Eastwick, Paul;Crespo, Carla
Harvested from ORCID Public Data FileCrespo, Carla in OpenAIRE Fischer, Ronald; Fischer, Ronald
Harvested from ORCID Public Data FileFischer, Ronald in OpenAIRE Friese, Malte; Gómez, Ángel; Guerra, Valeschka; Guevara, José Luis Castellanos; Hanke, Katja; Hooper, Nic; Huang, Li-Li; Junqi, Shi; Karasawa, Minoru;Friese, Malte
Harvested from ORCID Public Data FileFriese, Malte in OpenAIRE Kuppens, Peter; Leknes, Siri; Peker, Müjde; Pelay, Cesar; Pina, Afroditi; Sachkova, Marianna; Saguy, Tamar;Kuppens, Peter
Harvested from ORCID Public Data FileKuppens, Peter in OpenAIRE Silfver-Kuhalampi, Mia; Silfver-Kuhalampi, Mia
Harvested from ORCID Public Data FileSilfver-Kuhalampi, Mia in OpenAIRE Sortheix, Florencia; Tong, Jennifer;Sortheix, Florencia
Harvested from ORCID Public Data FileSortheix, Florencia in OpenAIRE Yeung, Victoria Wai-Lan; Duffy, Jacob;Yeung, Victoria Wai-Lan
Harvested from ORCID Public Data FileYeung, Victoria Wai-Lan in OpenAIRE Swann, William; Swann, William
Harvested from ORCID Public Data FileSwann, William in OpenAIREPathogens represent a significant threat to human health leading to the emergence of strategies designed to help manage their negative impact. We examined how spiritual beliefs developed to explain and predict the devastating effects of pathogens and spread of infectious disease. Analysis of existing data in studies 1 and 2 suggests that moral vitalism (beliefs about spiritual forces of evil) is higher in geographical regions characterized by historical higher levels of pathogens. Furthermore, drawing on a sample of 3140 participants from 28 countries in study 3, we found that historical higher levels of pathogens were associated with stronger endorsement of moral vitalistic beliefs. Furthermore, endorsement of moral vitalistic beliefs statistically mediated the previously reported relationship between pathogen prevalence and conservative ideologies, suggesting these beliefs reinforce behavioural strategies which function to prevent infection. We conclude that moral vitalism may be adaptive: by emphasizing concerns over contagion, it provided an explanatory model that enabled human groups to reduce rates of contagious disease.
Access RoutesGreen gold add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1098/rspb.2019.1576&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - ARC| Moral vitalism: understanding the foundations of righteous violence within everyday secular thought ,FCT| Center for Research and Social Intervention Bastian, Brock;
Bastian, Brock
Harvested from ORCID Public Data FileBastian, Brock in OpenAIRE Vauclair, Christin-Melanie; Loughnan, Steve;Vauclair, Christin-Melanie
Harvested from ORCID Public Data FileVauclair, Christin-Melanie in OpenAIRE Bain, Paul; +29 AuthorsBain, Paul
Harvested from ORCID Public Data FileBain, Paul in OpenAIRE Bastian, Brock; Bastian, Brock
Harvested from ORCID Public Data FileBastian, Brock in OpenAIRE Vauclair, Christin-Melanie; Loughnan, Steve;Vauclair, Christin-Melanie
Harvested from ORCID Public Data FileVauclair, Christin-Melanie in OpenAIRE Bain, Paul; Ashokkumar, Ashwini;Bain, Paul
Harvested from ORCID Public Data FileBain, Paul in OpenAIRE Becker, Maja; Bilewicz, Michał; Collier-Baker, Emma;Becker, Maja
Harvested from ORCID Public Data FileBecker, Maja in OpenAIRE Crespo, Carla; Eastwick, Paul;Crespo, Carla
Harvested from ORCID Public Data FileCrespo, Carla in OpenAIRE Fischer, Ronald; Fischer, Ronald
Harvested from ORCID Public Data FileFischer, Ronald in OpenAIRE Friese, Malte; Gómez, Ángel; Guerra, Valeschka; Guevara, José Luis Castellanos; Hanke, Katja; Hooper, Nic; Huang, Li-Li; Junqi, Shi; Karasawa, Minoru;Friese, Malte
Harvested from ORCID Public Data FileFriese, Malte in OpenAIRE Kuppens, Peter; Leknes, Siri; Peker, Müjde; Pelay, Cesar; Pina, Afroditi; Sachkova, Marianna; Saguy, Tamar;Kuppens, Peter
Harvested from ORCID Public Data FileKuppens, Peter in OpenAIRE Silfver-Kuhalampi, Mia; Silfver-Kuhalampi, Mia
Harvested from ORCID Public Data FileSilfver-Kuhalampi, Mia in OpenAIRE Sortheix, Florencia; Tong, Jennifer;Sortheix, Florencia
Harvested from ORCID Public Data FileSortheix, Florencia in OpenAIRE Yeung, Victoria Wai-Lan; Duffy, Jacob;Yeung, Victoria Wai-Lan
Harvested from ORCID Public Data FileYeung, Victoria Wai-Lan in OpenAIRE Swann, William; Swann, William
Harvested from ORCID Public Data FileSwann, William in OpenAIREPathogens represent a significant threat to human health leading to the emergence of strategies designed to help manage their negative impact. We examined how spiritual beliefs developed to explain and predict the devastating effects of pathogens and spread of infectious disease. Analysis of existing data in studies 1 and 2 suggests that moral vitalism (beliefs about spiritual forces of evil) is higher in geographical regions characterized by historical higher levels of pathogens. Furthermore, drawing on a sample of 3140 participants from 28 countries in study 3, we found that historical higher levels of pathogens were associated with stronger endorsement of moral vitalistic beliefs. Furthermore, endorsement of moral vitalistic beliefs statistically mediated the previously reported relationship between pathogen prevalence and conservative ideologies, suggesting these beliefs reinforce behavioural strategies which function to prevent infection. We conclude that moral vitalism may be adaptive: by emphasizing concerns over contagion, it provided an explanatory model that enabled human groups to reduce rates of contagious disease.
Access RoutesGreen gold add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1098/rspb.2019.1576&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Ge Shi; Peter Woodfield; Hong-Quan Nguyen; Bahman Shabani; +5 Authors
Peter Woodfield
Harvested from ORCID Public Data FilePeter Woodfield in OpenAIREGe Shi; Peter Woodfield; Hong-Quan Nguyen; Bahman Shabani;Peter Woodfield
Harvested from ORCID Public Data FilePeter Woodfield in OpenAIRE Tuan Kien Nguyen; Tuan Kien Nguyen;Tuan Kien Nguyen
Harvested from ORCID Public Data FileTuan Kien Nguyen in OpenAIRE Sadegh Aberoumand; Sadegh Aberoumand
Harvested from ORCID Public Data FileSadegh Aberoumand in OpenAIRE Qin Li; Dzung Viet Dao;Abstract The use of electrolyte-based nanofluid is a new approach for enhancing the performance of Vanadium Redox Flow Batteries (VRFBs). This paper, for the first time in the literature, presents an experimental study to comprehensively investigate the rheological behaviour, electrical conductivity, and thermal conductivity of a newly prepared electrochemical graphene oxide (EGO)/ vanadium (IV) electrolyte-based nanofluid in different weight concentration and bulk temperatures. SEM, FT-IR and X-ray Diffraction (XRD) characterizations were performed and different functional groups, smooth 2D layered structures, and low crystallinity were detected in our tailored oxidation EGO which are amongst the enhancing features for VRFBs electrode materials. It was observed that the optimum weight concentration of nanoparticles in the electrolyte-based nanofluid is 0.05 wt% with strong colloidal stability, enhanced electrical and thermal conductivities, and an optimal viscosity. The maximum feasible enhancements in electrical and thermal conductivities that were achieved were 12%, and 4%, respectively, which can positively affect the performance of flow battery in terms of electrochemical activity on the electrode surface and thermal management of the flow battery system. In addition, the rheological evaluation showed that the behaviour of the electrolyte-based nanofluid tends to change from Newtonian to non-Newtonian for weight concentrations higher than 0.05%. The results obtained from rheological behaviour can provide useful insights in choosing an optimum pumping system of the flow batteries working with electrolyte-based nanofluid.
Access RoutesGreen 36 citations 36 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.molliq.2021.116860&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Ge Shi; Peter Woodfield; Hong-Quan Nguyen; Bahman Shabani; +5 Authors
Peter Woodfield
Harvested from ORCID Public Data FilePeter Woodfield in OpenAIREGe Shi; Peter Woodfield; Hong-Quan Nguyen; Bahman Shabani;Peter Woodfield
Harvested from ORCID Public Data FilePeter Woodfield in OpenAIRE Tuan Kien Nguyen; Tuan Kien Nguyen;Tuan Kien Nguyen
Harvested from ORCID Public Data FileTuan Kien Nguyen in OpenAIRE Sadegh Aberoumand; Sadegh Aberoumand
Harvested from ORCID Public Data FileSadegh Aberoumand in OpenAIRE Qin Li; Dzung Viet Dao;Abstract The use of electrolyte-based nanofluid is a new approach for enhancing the performance of Vanadium Redox Flow Batteries (VRFBs). This paper, for the first time in the literature, presents an experimental study to comprehensively investigate the rheological behaviour, electrical conductivity, and thermal conductivity of a newly prepared electrochemical graphene oxide (EGO)/ vanadium (IV) electrolyte-based nanofluid in different weight concentration and bulk temperatures. SEM, FT-IR and X-ray Diffraction (XRD) characterizations were performed and different functional groups, smooth 2D layered structures, and low crystallinity were detected in our tailored oxidation EGO which are amongst the enhancing features for VRFBs electrode materials. It was observed that the optimum weight concentration of nanoparticles in the electrolyte-based nanofluid is 0.05 wt% with strong colloidal stability, enhanced electrical and thermal conductivities, and an optimal viscosity. The maximum feasible enhancements in electrical and thermal conductivities that were achieved were 12%, and 4%, respectively, which can positively affect the performance of flow battery in terms of electrochemical activity on the electrode surface and thermal management of the flow battery system. In addition, the rheological evaluation showed that the behaviour of the electrolyte-based nanofluid tends to change from Newtonian to non-Newtonian for weight concentrations higher than 0.05%. The results obtained from rheological behaviour can provide useful insights in choosing an optimum pumping system of the flow batteries working with electrolyte-based nanofluid.
Access RoutesGreen 36 citations 36 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.<script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.molliq.2021.116860&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu
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