Subnanometer molybdenum sulfide on carbon nanotubes as a highly active and stable electrocatalyst for hydrogen evolution reaction

Li, Ping, Yang, Zhi, Shen, Juanxia, Nie, Huagui, Cai, Qiran, Li, Luhua, Ge, Mengzhan, Gu, Cancan, Chen, Xi'an, Yang, Keqin, Zhang, Lijie, Chen, Ying and Huang, Shaoming 2016, Subnanometer molybdenum sulfide on carbon nanotubes as a highly active and stable electrocatalyst for hydrogen evolution reaction, ACS applied materials and interfaces, vol. 8, no. 5, pp. 3543-3550, doi: 10.1021/acsami.5b08816.

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Title Subnanometer molybdenum sulfide on carbon nanotubes as a highly active and stable electrocatalyst for hydrogen evolution reaction
Author(s) Li, Ping
Yang, Zhi
Shen, Juanxia
Nie, Huagui
Cai, Qiran
Li, LuhuaORCID iD for Li, Luhua orcid.org/0000-0003-2435-5220
Ge, Mengzhan
Gu, Cancan
Chen, Xi'an
Yang, Keqin
Zhang, Lijie
Chen, YingORCID iD for Chen, Ying orcid.org/0000-0002-7322-2224
Huang, Shaoming
Journal name ACS applied materials and interfaces
Volume number 8
Issue number 5
Start page 3543
End page 3550
Total pages 8
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 2016-02-10
ISSN 1944-8252
Keyword(s) carbon nanotubes
electrocatalysts
hydrogen evolution reaction
molybdenum sulfide
subnanometer
Summary Electrochemically splitting water for hydrogen evolution reaction (HER) has been viewed as a promising approach to produce renewable and clean hydrogen energy. However, searching for cheap and efficient HER electrocatalysts to replace the currently used Pt-based catalysts remains an urgent task. Herein, we develop a one-step carbon nanotube (CNT) assisted synthesis strategy with CNTs' strong adsorbability to mediate the growth of subnanometer-sized MoS(x) on CNTs. The subnanometer MoS(x)-CNT hybrids achieve a low overpotential of 106 mV at 10 mA cm(-2), a small Tafel slope of 37 mV per decade, and an unprecedentedly high turnover frequency value of 18.84 s(-1) at η = 200 mV among all reported non-Pt catalysts in acidic conditions. The superior performance of the hybrid catalysts benefits from the presence of a higher number of active sites and the abundant exposure of unsaturated S atoms rooted in the subnanometer structure, demonstrating a new class of subnanometer-scale catalysts.
Language eng
DOI 10.1021/acsami.5b08816
Field of Research 100708 Nanomaterials
0904 Chemical Engineering
0303 Macromolecular And Materials Chemistry
0306 Physical Chemistry (Incl. Structural)
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084945

Document type: Journal Article
Collections: Institute for Frontier Materials
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