Constructing Built‐in Electric Field in Heterogeneous Nanowire Arrays for Efficient Overall Water Electrolysis
Minzu University of China · Guangxi University · +2 more institutions
Abstract
Abstract Efficient bifunctional electrocatalysts for hydrogen and oxygen evolution reactions are key to water electrolysis. Herein, we report a built‐in electric field (BEF) strategy to fabricate heterogeneous nickel phosphide‐cobalt nanowire arrays grown on carbon fiber paper (Ni 2 P‐CoCH/CFP) with large work function difference (ΔΦ) as bifunctional electrocatalysts for overall water splitting. Impressively, Ni 2 P‐CoCH/CFP exhibits a remarkable catalytic activity for hydrogen and oxygen evolution reactions to obtain 10 mA cm −2 , respectively. Moreover, the assembled lab‐scale electrolyzer driven by an AAA battery delivers excellent stability after 50 h electrocatalysis with a 100 % faradic efficiency.…
Citation impact
- FWCI
- 20.85
- Percentile
- 100%
- References
- 66
Authors
8Topics & keywords
- Bifunctional
- Oxygen evolution
- Phosphide
- Electrolysis
- Water splitting
- Nanowire
- Electrocatalyst
- Materials science