一种用于析氧反应的高效FeP/CeO-NF复合电极。

A highly efficient FeP/CeO-NF hybrid electrode for the oxygen evolution reaction.

作者信息

Liu Jian, Gao Yan, Wei Yu, Chen Xuyang, Hao Shengjie, Ding Xin, Pan Lijun

机构信息

State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), Dalian 116024, P. R. China.

Department of Environmental Health Protection, National Institute for Environmental Health, Chinese Center for Disease Control and Prevention, No. 7 Nanli, Panjiayuan, Beijing, 100021, P. R. China.

出版信息

Chem Commun (Camb). 2020 Apr 14;56(30):4228-4231. doi: 10.1039/d0cc00177e.

DOI:10.1039/d0cc00177e

PMID:32181768

Abstract

Transition metal phosphides have been proven as highly efficient electrocatalysts. In this study, a FeP/CeO2-NF hybrid electrode was prepared by a simple electrodeposition and high-temperature phosphorization method. The electrode exhibits outstanding performance for the OER with an overpotential of only 245 mV at a current density of 100 mA cm-2, a Tafel slope as low as 39.1 mV dec-1 and an excellent durability for 50 h at a current density of 10 mA cm-2 in an alkaline solution. Such significant high performances are attributed to a combined effect of the excellent electron conductivity of CeO2 and unique uneven columnar structure of the electrode.

摘要

过渡金属磷化物已被证明是高效的电催化剂。在本研究中，通过简单的电沉积和高温磷化方法制备了FeP/CeO2-NF复合电极。该电极在析氧反应（OER）中表现出优异的性能，在电流密度为100 mA cm-2时过电位仅为245 mV，塔菲尔斜率低至39.1 mV dec-1，并且在碱性溶液中于10 mA cm-2的电流密度下具有50 h的出色耐久性。如此显著的高性能归因于CeO2优异的电子导电性和电极独特的不均匀柱状结构的综合作用。