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Published in: Rare Metals 3/2024

09-11-2023 | Letter

Synergistic effect between Er-doped MoS2 nanosheets and interfacial Mo–N coupling phases for enhanced electrocatalytic hydrogen evolution

Authors: Nian-Peng Li, Lei Zhang, Hua Zhang, Fan-Fei Min, Lei Wang, Sam Toan, Xi-Jun Liu, Guang-Zhi Hu

Published in: Rare Metals | Issue 3/2024

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Hydrogen production via electrochemical water splitting is a promising and green technology. As one of the most representative transition metal sulfides layered materials, Molybdenum disulfide (MoS2) has immense potential for the hydrogen evolution reaction (HER). We successfully prepared a nitrogen-doped carbon (NC) in situ-grown erbium-doped MoS2 polyhedral structure (Er-MoS2/NC) that incorporates an interfacial Mo–N coupling phase. The Er-MoS2/NC catalyst possesses superior HER catalytic activity with a overpotential of 5 mV at the current density of 10 mA·cm-2 and a small Tafel slope about 76 mV·dec-1 along with excellent stability. The synergistic effect of rare-earth doping and the interfacial Mo–N coupling phase effectively modifies the electronic structure of layered MoS2 by increasing the exposed active sites and further lowering the hydrogen adsorption energy. The present work offers a new avenue for synthesizing multilayer nanostructured materials to improve the performance of sulfide-based materials for electrocatalytic HER.

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Appendix
Available only for authorised users
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Metadata
Title
Synergistic effect between Er-doped MoS2 nanosheets and interfacial Mo–N coupling phases for enhanced electrocatalytic hydrogen evolution
Authors
Nian-Peng Li
Lei Zhang
Hua Zhang
Fan-Fei Min
Lei Wang
Sam Toan
Xi-Jun Liu
Guang-Zhi Hu
Publication date
09-11-2023
Publisher
Nonferrous Metals Society of China
Published in
Rare Metals / Issue 3/2024
Print ISSN: 1001-0521
Electronic ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-023-02409-7

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