Iron-doped VSe2 nanosheets for enhanced hydrogen evolution reaction

被引:21
|
作者
Wang, Chaolun [1 ,2 ]
Wu, Xing [1 ]
Zhang, Xuan [3 ]
Mu, Gang [3 ]
Li, Panlin [3 ]
Luo, Chen [1 ]
Xu, Hejun [1 ]
Di, Zengfeng [3 ]
机构
[1] East China Normal Univ, Dept Elect Engn, Shanghai Key Lab Multidimens Informat Proc, 500 Dongchuan Rd, Shanghai 200241, Peoples R China
[2] East China Normal Univ, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, 500 Dongchuan Rd, Shanghai 200241, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China
关键词
FILMS; MOS2;
D O I
10.1063/5.0008092
中图分类号
O59 [应用物理学];
学科分类号
摘要
Alloying is critical for regulating the electron states of layered two-dimensional (2D) materials, which has a significant influence on the physical and chemical properties of 2D materials, such as electrochemical catalysis, magnetism, and the bandgap of semiconductors. Here, we report the alloy of Fe-doped VSe2 with good homogeneity at the atomic level by using a one-step synthesis method. Fe-doped VSe2 presents enhanced hydrogen evolution reaction (HER) performance. It is found that Fe-doped VSe2 shows improved catalytic activity compared to the virgin VSe2, including a lower overpotential and a smaller Tafel slope. The enhanced HER performance indicates a lower Gibbs free energy of the HER process, resulting from the doping-induced regulation of the electron states. Our work presents a facile method to prepare transition metal-doped 2D materials and offers a general way to regulate the catalytic properties of 2D materials for energy conversion applications.
引用
收藏
页数:5
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