Ultrasmall transition metal carbide nanoparticles encapsulated in N, S-doped graphene for all-pH hydrogen evolution

Noble metal free catalysts with high catalytic activity and excellent durability have long been pursued as alternatives of noble metal catalysts for renewable energy technologies. Herein, a facile one‐step method is reported to prepare ultrasmall transition metal carbide nanoparticles encapsulated i...

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Bibliographic Details
Main Authors: Zhang, Liping, Yang, Hongbin, Wanigarathna, Darshika K. J. A., Liu, Bin
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/138480
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Institution: Nanyang Technological University
Language: English
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Summary:Noble metal free catalysts with high catalytic activity and excellent durability have long been pursued as alternatives of noble metal catalysts for renewable energy technologies. Herein, a facile one‐step method is reported to prepare ultrasmall transition metal carbide nanoparticles encapsulated in N, S‐doped graphene as noble‐metal‐free electrocatalysts for all‐pH hydrogen evolution, in which, high‐density MoCx (≈2.8 nm) or WCx (≈2.0 nm) nanoparticles are encapsulated in porous N, S‐doped graphene matrix. Both catalysts exhibit excellent hydrogen evolution reaction catalytic activity and durability in a wide range of pH from 0 to 14.