Ruthenium-cobalt bimetallic nanoparticles supported on oxidized carbon nanotubes as HER catalyst under alkaline conditions

被引：2
|
作者：
Li, Chong [1 ]
Li, Binhui [1 ]
Luo, Jingzhang [1 ]
Shi, Yueming [1 ]
Zou, Jianhua [1 ]
Liu, Huimin [2 ]
Wang, Yongfei [1 ,2 ]
Zhang, Zhiqiang [2 ]
机构：
[1] Univ Sci & Technol Liaoning, Sch Mat & Met, Anshan 114051, Liaoning, Peoples R China
[2] Univ Sci & Technol Liaoning, Sch Chem Engn, 185 Qianshan Zhong Rd, Anshan 114051, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2023年 / 833卷
基金：
中国国家自然科学基金;
关键词：
Hydrogen evolution reaction; Ruthenium-cobalt alloy nanoparticles; Oxidized carbon nanotubes; Alkaline condition; HYDROGEN EVOLUTION; ELECTROCATALYST;
D O I：
10.1016/j.cplett.2023.140906
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：
The development of efficient, reliable, and clean Ru-based catalysts to replace commercial Pt/C catalysts for the hydrogen evolution reaction (HER) will play an important role in the future of sustainable energy. In this work, a series of catalysts consisting of ruthenium-cobalt bimetallic nanoalloy loaded on oxidized carbon nanotubes (RuxCoy@OCNTs) was prepared for HER under alkaline electrolyte (pH = 14). With an annealing temperature of 700 celcius and a Ru/Co doping ratio of 1/1.5, the Ru1Co1.5@OCNT-700 catalyst exhibited outstanding catalytic performance and excellent stability. Under a current density of 10 mA cm-2, the required overpotential was 17.6 mV and the Tafel slope was 35.78 mV dec-1. This work provides a reference for preparing better Ru-based catalysts for HER in alkaline electrolyte, and the prepared catalyst shows excellent promise for producing hydrogen.
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页数：7
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