Morphology-Controlled Synthesis of V1.11S2 for Electrocatalytic Hydrogen Evolution Reaction in Acid Media

High-performance low-cost catalysts are in high demand for the hydrogen evolution reaction (HER). In the present study, we reported that V1.11S2 materials with flower-like, flake-like, and porous morphologies were successfully synthesized by hydrothermal synthesis and subsequent calcination. The eff...

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Published inMolecules (Basel, Switzerland) Vol. 27; no. 22; p. 8019
Main Authors Chen, Qiuyue, Tian, Siqi, Liu, Xiaonan, An, Xuguang, Zhang, Jingxian, Xu, Longhan, Yao, Weitang, Kong, Qingquan
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 18.11.2022
MDPI
Subjects
Catalysts
Charge transfer
Evolution
Flowers
Hydrogen
hydrogen evolution reaction
hydrothermal synthesis
Morphology
Point defects
Spectrum analysis
Sulfuric acid
V1.11S2
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Summary:High-performance low-cost catalysts are in high demand for the hydrogen evolution reaction (HER). In the present study, we reported that V1.11S2 materials with flower-like, flake-like, and porous morphologies were successfully synthesized by hydrothermal synthesis and subsequent calcination. The effects of morphology on hydrogen evolution performance were studied. Results show that flower-like V1.11S2 exhibits the best electrocatalytic activity for HER, achieving both high activity and preferable stability in 0.5 M H2SO4 solution. The main reason can be ascribed to the abundance of catalytically active sites and low charge transfer resistance.
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ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27228019