催化作用
材料科学
复合数
球磨机
异质结
再分配(选举)
碳化物
化学工程
钼
氢
二硫化钼
纳米技术
冶金
化学
复合材料
光电子学
有机化学
政治
政治学
法学
工程类
生物化学
作者
Peirong Chen,Hao Zhong,Liuzhang Ouyang,Haiwen Li
标识
DOI:10.1016/j.ijhydene.2023.07.100
摘要
Interfacial engineering is an effective approach for regulating the electronic structure of molybdenum carbides and promoting the hydrogen evolution reaction (HER). However, the development of a facile, cost-effective, and scalable synthesis method is crucial for industrial applications. In this work, we developed a mechanochemical method for the preparation of a composite of MoO2/MoC with superior HER electrocatalytic performance in alkaline solutions. The MoO2/MoC composite can be easily formed by ball milling for 1 h at ambient conditions, and this process can be scaled up for large-scale industrialization. The composite construction leads to a redistribution of electrons around the interface, optimizing the adsorption energy and enhancing the HER performance beyond that of Pt/C catalysts. This strategy provides a new route for the simple and efficient preparation of high-activity electrocatalysts.
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