Jin Renzhe, Su Shilong, Li Ju, Ping Dehai, Li Yuanyuan, He Mengyuan, Yu Xiaomei, Wei Zhengyu, Liu Yong, Li Songjie, Zheng Jinyou
School of Chemical Engineering, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China.
Zhongyuan Critical Metals Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China.
Nanomaterials (Basel). 2024 Aug 30;14(17):1422. doi: 10.3390/nano14171422.
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 CoMoC supported on nitrogen-doped graphene (N-CoMoC/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 and a Tafel slope of 80 mV dec. These findings present a novel avenue for the fabrication of efficient bimetallic carbide catalysts.
氢作为一种有望解决当代环境退化和能源短缺挑战的能源，已引起了广泛关注。用于制氢的电催化水分解已成为一种环境友好且用途广泛的方法，可提供高纯度氢气。然而，使用丰富且廉价的材料开发具有成本效益的电催化催化剂至关重要。在本研究中，我们成功合成了负载在氮掺杂石墨烯（N-CoMoC/NC）上的氮掺杂CoMoC。该催化剂在碱性电解质（1.0 M KOH）中表现出用于析氢的高性能和耐久性，在电流密度为100 mA cm时过电位为185 mV，塔菲尔斜率为80 mV dec。这些发现为制备高效双金属碳化物催化剂提供了一条新途径。
