Coupling MoS nanosheets with CeO for efficient electrocatalytic hydrogen evolution at large current densities

We developed an efficient MoS 2 nanosheet electrode coupled with CeO 2 via a hydrothermal process to facilitate water adsorption and dissociation, which displayed good HER activity and stability at a large current density of 500 mA cm −2 . In situ Raman spectroscopy confirmed the formation of hydrox...

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Published in:Chemical communications (Cambridge, England) England), 2023-09, Vol.59 (77), p.11512-11515
Main Authors: Li, Rui-Qing, Wang, Changming, Xie, Shuixiang, Hang, Tianyu, Wan, Xiaoyu, Zeng, Jinjue, Zhang, Wei
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Summary:We developed an efficient MoS 2 nanosheet electrode coupled with CeO 2 via a hydrothermal process to facilitate water adsorption and dissociation, which displayed good HER activity and stability at a large current density of 500 mA cm −2 . In situ Raman spectroscopy confirmed the formation of hydroxide ions based on the strengthening of the Ce-O bond during the HER. An efficient catalyst was developed by coupling MoS 2 nanosheets with CeO 2 as a self-supported electrode, which displays outstanding HER activity and stability at a large current density of 500 mA cm −2 .
ISSN:1359-7345
1364-548X
DOI:10.1039/d3cc03473a