Investigation of the AuPdPt-WC/C Electrocatalyst for Hydrogen Evolution Reaction

被引：25

作者：

Nie, Ming ^{[1
]}

Liu, Xiaowei ^{[1
]}

He, Bi ^{[1
]}

Li, Qing ^{[1
]}

Du, Shengjuan ^{[1
]}

Lu, Shun ^{[1
]}

Jiang, Chunyan ^{[1
]}

Lei, Dan ^{[1
]}

机构：

[1] Southwest Univ, Fac Mat & Energy, Key Lab Luminescence & Real Time Anal, Educ Minist, Chongqing 400715, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2016年 / 163卷 / 07期

关键词：

NI-MO; TUNGSTEN CARBIDE; CATALYTIC ACTIVITY; ELECTRODE; SURFACE; PD; PERFORMANCE; ADSORPTION; COATINGS; CATHODE;

D O I：

10.1149/2.0201607jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nano-tungsten carbide was prepared by intermittent microwave heating method (IMH) in this study. IMH has many advantages such as heating uniformity, rapid increase of temperature in heating. The method is easy to control. AuPdPt-WC/C was prepared by direct chemical reduction. The electrocatalysts are characterized by XRD, SEM, EDX, linear sweeping voltammetry and electrochemical impedance spectroscopy (EIS) for the HER in the acidic media. The results show that the AuPdPt-WC/C electrocatalyst has higher activity and stability in acidic solution compared to the Pt-WC/C electrocatalyst, and AuPdPt-WC/C electrocatalyst performs a lower overpotential and a higher exchange current density. In addition, the catalytic HER performance of AuPdPt-WC/C electrocatalyst is improved dramatically. When the mass ratio of Au:Pd:Pt:WC is 1: 1: 2: 1, the composite electrocatalyst shows the best catalytic activity of the HER. Kinetic study shows that the HER on the AuPdPt-WC/C electrocatalyst gives a lower overpotential in 2.0 mol L-1 H2SO4 solution. When the temperature changed from 313 K to 323 K, the hydrogen evolution performance can also be enhanced. (C) 2016 The Electrochemical Society. All rights reserved.

引用

页码：H485 / H490

页数：6

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