High-Performance Bimetallic Electrocatalysts for Hydrogen Evolution Reaction Using N-Doped Graphene-Supported N-Co6Mo6C

Author:

Jin Renzhe1,Su Shilong1,Li Ju1,Ping Dehai2,Li Yuanyuan1,He Mengyuan1,Yu Xiaomei13,Wei Zhengyu1,Liu Yong1,Li Songjie13,Zheng Jinyou13ORCID

Affiliation:

1. School of Chemical Engineering, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China

2. Zhongyuan Critical Metals Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China

3. Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China

Abstract

Hydrogen has garnered considerable attention as a promising energy source for addressing contemporary environmental degradation and energy scarcity challenges. Electrocatalytic water splitting for hydrogen production has emerged as an environmentally friendly and versatile method, offering high purity. However, the development of cost-effective electrocatalytic catalysts using abundant and inexpensive materials is crucial. In this study, we successfully synthesized nitrogen-doped Co6Mo6C supported on nitrogen-doped graphene (N-Co6Mo6C/NC). The catalyst exhibited high performance and durability in alkaline electrolytes (1.0 M KOH) for hydrogen evolution, showcasing an overpotential of 185 mV at a current density of 100 mA cm−2 and a Tafel slope of 80 mV dec−1. These findings present a novel avenue for the fabrication of efficient bimetallic carbide catalysts.

Funder

Project funding for Young Backbone Teachers in Colleges and Universities of Henan Province

Natural Science Foundation of Henan Province

National Natural Science Foundation of China

Publisher

MDPI AG

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