文献类型：期刊文献

英文题名：Construction of amorphous CoFeOx(OH)y/MoS2/CP electrode for superior OER performance

作者：Zhao, Chunhua[1];Zhang, Xu[1];Xu, Sijia[1];Yang, Guang[2];Fan, Jingtao[1];Guo, Jingjia[1];Cai, Wenlei[1];Zhao, Chongjun[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat Minist Educ, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]Shanghai Aerosp Power Technol Co LTD, Shanghai 201112, Shanghai, Peoples R China

年份：2022

卷号：47

期号：67

起止页码：28859

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20223012406890);WOS:【SCI-EXPANDED(收录号:WOS:000862874100013)】；

基金：We are grateful for the support of National Natural Science Foundation of China (22075082), Natural Science Foundation of Shanghai (No. 19ZR1413000, 13ZR1411900), Shanghai Alliance Plan (No. LM201881, LM201751), Shanghai Military-civilian Integration Development Project (JMRHCY-2020-006), Shanghai Leading Academic Discipline Project (B502), and Shanghai Key Laboratory Project (08DZ2230500) .

语种：英文

外文关键词：Amorphous CoFeOx(OH)(y); MoS2; Carbon paper; Binder-free; Oxygen evolution reaction (OER)

摘要：Design and direct construction of oxygen evolution reaction (OER) catalyst-based electrode is an efficient route to improve the water splitting reaction. Herein, we proposed a facile route to synthesize and load the composite of amorphous CoFe oxyhydroxide (CoFeOx(-OH)y) and MoS2 on the carbon paper by combining a hydrothermal and an electrodeposition process. CoFeOx(OH)y has a special feature of long-range disorder (amorphous phase) and short-range order (crystal phase), which greatly improves the OER catalytic performance of the hybrids. In virtue of the synergistic effect of CoFeOx(OH)y and MoS2, an improved electronic coupling effect occurs, which increases the oxidation state of Co and Fe, and thus enhances OER activity. Assynthesized CoFeOx(OH)y/MoS2/CP (CFOMS/CP) electrode affords excellent electrocatalytic activity and good electrochemical OER stability: A small Tafel slope of 37.9 mV dec(-1)(vs. 62.1 mV dec(-1) for CoFeOx(OH)(y)/CP, 120.2 mV dec(-1) for RuO2/CP) and low overpotential 242 mV at 10 mA cm(-2) (vs. 263 mV for CoFeOx(OH)(y)/CP, 317 mV for RuO2/CP), as well as a stable running for 25 h. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.