Porous amorphous NiFeOx/NiFeP framework with dual electrocatalytic functions for water electrolysis

Porous amorphous NiFeOx/NiFeP framework with dual electrocatalytic functions for water electrolysis
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具有双重电催化功能的多孔非晶 NiFeOx/NiFeP 框架用于水电解

DOI:
10.1016/j.jpowsour.2019.04.098
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发表时间:
2019-07
影响因子:
9.2
通讯作者:
Peng Zhenmeng
Peng Zhenmeng
中科院分区:
工程技术2区
文献类型:
--
作者:
Hu Fei;Zhang Yan;Shen Xiaochen;Tao Jingying;Yang Xiaowei;Xiong Yujie;Peng Zhenmeng

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高效的本体电催化剂是提高水电解效率的重要途径。在这项研究中,我们报告了一种功能集成的块体NiFeOx@NiFeP催化剂,具有优异的电催化活性和稳定性。这种新型催化剂具有三维(3D)纳米多孔骨架结构、优异的宏观导电性和独特的Mott-Schottky结构等多重优点,其提供立体化学和能量灵活性以与具有多种功能的反应物相互作用,包括大的表面积、快速的质量和电荷转移以及有利的催化动力学。块体NiFeOx@NiFeP可以同时用作催化剂和集流体,并且催化析氢反应(HER)和析氧反应(OER),如以活性和持久的整体水分解性能所证明的。
An efficient bulk electrocatalyst is appealing to advance the efficiency of water electrolysis. In this study, we report a function-integrated bulk NiFeOx@NiFeP catalyst that exhibits excellent electrocatalytic activity and stability properties. This new catalyst possesses multiple advantages including three-dimensional (3D) nanoporous framework structure, excellent macro-conductivity, and unique Mott-Schottky architecture, which offers stereochemical and energetic flexibility to interact with reactants with multiple functions including large surface area, fast mass and charge transfers, and favorable catalysis kinetics. The bulk NiFeOx@NiFeP can serve simultaneously as catalyst and current collector, and catalyze both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), as demonstrated with active and durable overall water splitting performances.
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