Iron-doped VSe2 nanosheets for enhanced hydrogen evolution reaction

被引：20

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

来源：

APPLIED PHYSICS LETTERS | 2020年 / 116卷 / 22期

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

页数：5

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