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Electrosynthesis and Characterization of Novel CNx-HMMT Supported Pd Nanocomposite Material for Methanol Electro-Oxidation

descriptionPublicationkeyboard_double_arrow_right Article , Journal , Other literature type 16 Jun 2021 Italy Publisher:MDPI AGJournal:Energies, volume 14, page 3,578 (eissn: 1996-1073,

Authors: Faizah Altaf; Rohama Gill; Patrizia Bocchetta; Rida Batool; Muhammad Usman Hameed; Ghazanfar Abbas; Karl Jacob;

doi: 10.3390/en14123578

handle: 11587/455614

Electrosynthesis and Characterization of Novel CNx-HMMT Supported Pd Nanocomposite Material for Methanol Electro-Oxidation

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Abstract

In the current research work, palladium (Pd) nanoparticles were electrochemically deposited on a nitrogen doped montmorillonite (CNx-MMT) support using the underpotential deposition (UPD) method. The prepared Pd based composite electrode was studied as an electrocatalyst for methanol fuel oxidation. The catalysts and the supporting materials montmorillonite, acid activated montmorillonite, and nitrogen doped montmorillonite (MMT, HMMT and CNx-HMMT) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS) and electrochemical characterization by cyclic voltammetry (CV). The results indicated that Pd supported on CNx-HMMT possesses enhanced electrocatalytic activity and stability compared to commercial Pd/C, which was attributed to its higher electrochemical surface area (ECSA) (23.00 m2 g−1). The results demonstrated the potential application of novel Pd/CNx-HMMT composite nanomaterial as electrocatalysts for methanol electrooxidation in direct methanol fuel cells (DMFCs).

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Italy

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Keywords

Technology, Control and Optimization, Renewable Energy, Sustainability and the Environment, T, Energy Engineering and Power Technology, methanol electrooxidation, underpotential deposition, electrocatalyst, direct methanol fuel cell, Electrical and Electronic Engineering, direct methanol fuel cell; nitrogen doped montmorillonite; underpotential deposition; electrocatalyst; methanol electrooxidation, Engineering (miscellaneous), nitrogen doped montmorillonite, Energy (miscellaneous)

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