Iron-doped VSe2 nanosheets for enhanced hydrogen evolution reaction
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...
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| Veröffentlicht in: | Applied physics letters 2020-06, Vol.116 (22) |
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| container_title | Applied physics letters |
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| creator | Wang, Chaolun Wu, Xing Zhang, Xuan Mu, Gang Li, Panlin Luo, Chen Xu, Hejun Di, Zengfeng |
| description | 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. |
| doi_str_mv | 10.1063/5.0008092 |
| format | Article |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Catalytic activity Catalytic converters Chemical properties Electron states Energy conversion Gibbs free energy Homogeneity Hydrogen evolution reactions Iron Magnetic properties Magnetism Nanosheets Transition metals Two dimensional materials |
| title | Iron-doped VSe2 nanosheets for enhanced hydrogen evolution reaction |
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