分解水
磷化物
催化作用
钴
镍
三元运算
过渡金属
电解水
电解质
电化学
电解
化学工程
材料科学
无机化学
化学
电催化剂
电极
物理化学
冶金
工程类
光催化
程序设计语言
生物化学
计算机科学
作者
Rui Wu,Bing Xiao,Qiang Gao,Ya-Rong Zheng,Xusheng Zheng,Junfa Zhu,Min-Rui Gao,Shu-Hong Yu
标识
DOI:10.1002/anie.201808929
摘要
Transition-metal phosphides have stimulated great interest as catalysts to drive the hydrogen evolution reaction (HER), but their use as bifunctional catalytic electrodes that enable efficient neutral-pH water splitting has rarely been achieved. Herein, we report the synthesis of ternary Ni0.1 Co0.9 P porous nanosheets onto conductive carbon fiber paper that can efficiently and robustly catalyze both the HER and water oxidation in 1 m phosphate buffer (PBS; pH 7) electrolyte under ambient conditions. A water electrolysis cell comprising the Ni0.1 Co0.9 P electrodes demonstrates remarkable activity and stability for the electrochemical splitting of neutral-pH water. We attribute this performance to the new ternary Ni0.1 Co0.9 P structure with porous surfaces and favorable electronic states resulting from the synergistic interplay between nickel and cobalt. Ternary metal phosphides hold promise as efficient and low-cost catalysts for neutral-pH water splitting devices.
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