Three-Dimensional Hierarchical Porous Nanotubes Derived from Metal-Organic Frameworks for Highly Efficient Overall Water Splitting
Copyright policy )Three-Dimensional Hierarchical Porous Nanotubes Derived from Metal-Organic Frameworks for Highly Efficient Overall Water Splitting
Effective design of bifunctional catalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is important but remains challenging. Herein, we report a three-dimensional (3D) hierarchical structure composed of homogeneously distributed Ni-Fe-P nanoparticles embedded in N-doped carbons on nickel foams (denoted as Ni-Fe-P@NC/NF) as an excellent bifunctional catalyst. This catalyst was fabricated by an anion exchange method and a low-temperature phosphidation of nanotubular Prussian blue analogue (PBA). The Ni-Fe-P@NC/NF displayed exceptional catalytic activity toward both HER and OER and delivered an ultralow cell voltage of 1.47 V to obtain 10 mA cm-2 with extremely excellent durability for 100 h when assembled as a practical electrolyser. The extraordinary performance of Ni-Fe-P@NC/NF is attributed to the abundance of unsaturated active sites, the well-defined hierarchical porous structure, and the synergistic effect between multiple components. Our work will inspire more rational designs of highly active non-noble electrocatalysts for industrial energy applications.
- University of Sydney Australia
- Stanford University United States
- University of California System United States
- Griffith University Australia
- Department of Materials Science and Engineering Stanford University United States
Science, anzsrc-for: 4018 Nanotechnology, 4016 Materials Engineering, Catalysis, Energy Materials, anzsrc-for: 34 Chemical Sciences, Article, anzsrc-for: 40 Engineering, Chemical engineering, Materials Chemistry, 4018 Nanotechnology, 40 Engineering, Nanomaterials, 3403 Macromolecular and Materials Chemistry, anzsrc-for: 4016 Materials Engineering, 34 Chemical Sciences, Q, 540, anzsrc-for: 3403 Macromolecular and Materials Chemistry, 7 Affordable and Clean Energy
Science, anzsrc-for: 4018 Nanotechnology, 4016 Materials Engineering, Catalysis, Energy Materials, anzsrc-for: 34 Chemical Sciences, Article, anzsrc-for: 40 Engineering, Chemical engineering, Materials Chemistry, 4018 Nanotechnology, 40 Engineering, Nanomaterials, 3403 Macromolecular and Materials Chemistry, anzsrc-for: 4016 Materials Engineering, 34 Chemical Sciences, Q, 540, anzsrc-for: 3403 Macromolecular and Materials Chemistry, 7 Affordable and Clean Energy
