In-situ Formation of Amorphous Co-Al-P Layer on CoAl Layered Double Hydroxide Nanoarray as Neutral Electrocatalysts for Hydrogen Evolution Reaction
| Autor: | Junfeng Xie, Wanqing Teng, Xiangjiang Zheng, Ziqiang Wang, Bo Tang, Zhaomei Sun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Phosphide 02 engineering and technology Overpotential 010402 general chemistry Electrochemistry Electrocatalyst 01 natural sciences electrocatalysts neutral pH Catalysis lcsh:Chemistry chemistry.chemical_compound Original Research phosphide General Chemistry 021001 nanoscience & nanotechnology nanoarray 0104 chemical sciences Amorphous solid hydrogen evolution reaction Chemistry chemistry Chemical engineering lcsh:QD1-999 Electrode Hydroxide 0210 nano-technology |
| Zdroj: | Frontiers in Chemistry, Vol 8 (2020) Frontiers in Chemistry |
| ISSN: | 2296-2646 |
| DOI: | 10.3389/fchem.2020.552795/full |
| Popis: | Exploration of high-efficiency and inexpensive electrode catalysts is of vital importance for the hydrogen evolution reaction (HER). In this research, an amorphous Co-Al-P layer was constructed on the surface of CoAl layered double hydroxide (CoAl-LDH) via an in-situ wet phosphidation strategy. The core-shell CoAl-LDH@Co-Al-P on Ti mesh (CoAl-LDH@Co-Al-P/TM) as an active HER electrocatalyst demands an overpotential of 150 mV to achieve a current density of 10 mA cm-2 at neutral pH. Moreover, CoAl-LDH@Co-Al-P/TM also exhibits good electrochemical stability and a superior Faradic efficiency of nearly 100%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|