磷化物
电催化剂
异质结
材料科学
分解水
氮化物
化学工程
铜
电导率
兴奋剂
催化作用
氢
制氢
无机化学
电极
光催化
光电子学
镍
纳米技术
化学
电化学
冶金
物理化学
图层(电子)
有机化学
工程类
生物化学
作者
Qijun Wang,Zheye Zhang,Xuezhu Zhao,Junwu Xiao,Devaraj Manoj,Feifei Wei,Fei Xiao,Hairen Wang,Shuai Wang
标识
DOI:10.1002/celc.201901860
摘要
Abstract Efficient and robust electrocatalysts composed of earth‐abundant elements to replace noble metals is highly essential for cost‐effective production of hydrogen from water splitting. Herein, we demonstrate the fabrication of SO 4 2− anions bridged MOF‐derived Cu 3 N−Cu 3 P heterostructure coated by ultrathin N, P, S‐tri‐doped carbon (NPSC) on nickel foam (Cu 3 N−Cu 3 P/NPSCNWs@NF) via an interface reconstruction strategy. The first‐principle simulation demonstrates that both Cu 3 N, Cu 3 P and NPSC own good electrical conductivity, suggesting these species can lead to efficient electrocatalytic performance. The remarkable features of high intrinsic conductivity and interfacial heterostructures at Cu 3 N−Cu 3 P/NPSCNWs@NF have ensured excellent water splitting electrocatalytic activity with a low potential of 1.54 V at 10 mA cm −2 in 1 M KOH over 24 h, and additionally the resultant electrode exhibits impressive response for HER with an ultralow potential of 109 mV at 10 mA cm −2 in neutral‐pH media over 30 h.
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