PPy film anchored on ZnCo2O4 nanowires facilitating efficient bifunctional electrocatalysis

被引：42

作者：

Zhao, D. ^{[1
]}

Dai, M. ^{[1
]}

Liu, H. ^{[1
]}

Zhu, X. ^{[1
]}

Wu, X. ^{[1
,2
]}

机构：

[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

来源：

MATERIALS TODAY ENERGY | 2021年 / 20卷

关键词：

Hybrid structures; ZnCo2O4@PPy; Electrochemical deposition; Overall water splitting; Electrochemical mechanism; LAYERED DOUBLE HYDROXIDE; ENERGY-STORAGE; WATER; NANOSHEETS; SPINEL; ARRAYS; RICH; NI;

D O I：

10.1016/j.mtener.2021.100637

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Exploring high-efficient and low-cost electrode materials is very important to improve the energy conversion efficiency of catalysts. Metal oxide generally exhibits poor conductivity that restricts its wide applications. In this work, a series of ZnCo2O4@PPy nanowires are obtained through a facile hydrothermal route and subsequently electrochemical deposition process. Among them, ZnCo2O4@PPy-200 product shows superior OER performance with a low overpotential and Tafel slope of 60.77 mV/dec. As bifunctional catalysts to drive electrolysis of water, the samples deliver a cell voltage of 1.95 V at 100 mA/cm(2) and long cycle stability. (C) 2021 Elsevier Ltd. All rights reserved.

引用

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