Regulating the electronic structure of molybdenum disulfide by chromium incorporation for robust hydrogen evolution
Shuixiang Xie1, Xinyu Zhu1, Yuhan Zhang1
1School of Textile and Clothing, Nantong University, Nantong 226019, PR China. liruiqing@ntu.edu.cn.
Chemical Communications (Cambridge, England)
|December 23, 2025
Abstract:
We developed novel uniform chromium-doped molybdenum disulfide (Cr-MoS2) nanosheets for the electrocatalytic hydrogen evolution reaction (HER). The Cr doping is beneficial for the charge redistribution of MoS2 and energy barrier optimization of the HER, which endows Cr-MoS2 with excellent catalytic activity and stability, as confirmed by in situ Raman spectroscopy.
Related Concept Videos
02:26Preparation and Reactions of Sulfides
5.7K
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
5.7K
02:33Preparation and Reactions of Thiols
7.4K
Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
7.4K