Preparation of 1T′-phase ReS2xSe2(1‑x) (x = 0−1) nanodots for highly efficient electrocatalytic hydrogen evolution reaction

Preparation of 1T′-phase ReS2xSe2(1‑x) (x = 0−1) nanodots for highly efficient electrocatalytic hydrogen evolution reaction

As a source of clean energy, a reliable hydrogen evolution reaction (HER) requires robust and highly efficient catalysts. Here, by combining chemical vapor transport and Li-intercalation, we have prepared a series of 1T′-phase ReS2xSe2(1-x) (x = 0–1) nanodots to achieve high-performance HER in acid...

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Bibliographic Details
Main Authors: Lai, Zhuangchai, Chaturvedi, Apoorva, Wang, Yun, Tran, Thu Ha, Liu, Xiaozhi, Tan, Chaoliang, Luo, Zhimin, Chen, Bo, Huang, Ying, Nam, Gwang-Hyeon, Zhang, Zhicheng, Chen, Ye, Hu, Zhaoning, Li, Bing, Xi, Shibo, Zhang, Qinghua, Zong, Yun, Gu, Lin, Kloc, Christian, Du, Yonghua, Zhang, Hua
Other Authors: School of Materials Science & Engineering
Format: Journal Article
Language:English
Published: 2020
Subjects:
Engineering::Materials
Crystals
Crystal Structure
Online Access:https://hdl.handle.net/10356/137695
Description
Summary:As a source of clean energy, a reliable hydrogen evolution reaction (HER) requires robust and highly efficient catalysts. Here, by combining chemical vapor transport and Li-intercalation, we have prepared a series of 1T′-phase ReS2xSe2(1-x) (x = 0–1) nanodots to achieve high-performance HER in acid medium. Among them, the 1T′-phase ReSSe nanodot exhibits the highest hydrogen evolution activity, with a Tafel slope of 50.1 mV dec–1 and a low overpotential of 84 mV at current density of 10 mA cm–2. The excellent hydrogen evolution activity is attributed to the optimal hydrogen absorption energy of the active site induced by the asymmetric S vacancy in the highly asymmetric 1T′ crystal structure.

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