Transition Metal/Metal Oxide Interface (Ni–Mo–O/Ni4Mo) Stabilized on N-Doped Carbon Paper for Enhanced Hydrogen Evolution Reaction in Alkaline Conditions
| Autor: | Tao Chen, Lan Wang, Yang Li, Wenchao Peng, Zeqi Jin, Qicheng Zhang, Fengbao Zhang, Xiaobin Fan, Junmei Liang |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Electrolysis of water General Chemical Engineering Oxide 02 engineering and technology General Chemistry Overpotential 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Catalysis Metal chemistry.chemical_compound 020401 chemical engineering Chemical engineering Transition metal chemistry Electrical resistivity and conductivity visual_art Polyaniline visual_art.visual_art_medium 0204 chemical engineering 0210 nano-technology |
| Zdroj: | Industrial & Engineering Chemistry Research. 60:5145-5150 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | Designing hydrogen evolution reaction catalysts with high performance in alkaline conditions is important for reducing energy consumption during water electrolysis. This study reports an electrodeposition–calcination–electrodeposition strategy to construct the Ni–Mo–O/Ni₄Mo nanointerface on an N-doped carbon support derived from polyaniline on carbon fiber paper. The N-doped carbon support not only stabilizes the metal/metal oxide nanointerface but also generates more active intrinsic sites and electrical conductivity via the metal–N interaction. The obtained Ni–Mo–O/Ni₄Mo@NC displays a low overpotential of only 61 mV at a current density of 10 mA cm–² for alkaline HER in 1 M KOH. |
| Databáze: | OpenAIRE |
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