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Cited by 203Electrocatalysts for Energy ConversionFuel Cells and Related MaterialsCO2 Reduction Techniques and Catalysts

Molybdenum Carbide Nanoparticles Coated into the Graphene Wrapping N‐Doped Porous Carbon Microspheres for Highly Efficient Electrocatalytic Hydrogen Evolution Both in Acidic and Alkaline Media

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Wei, Huifang, Xi, Qiaoya, Chen, Xi'an, Guo, Daying, Ding, Feng, Yang, Zhi, Wang, Shun, Li, Juan +1 more·2018·Advanced Science
DOI 10.1002/advs.201700733PMC PMC5867049
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Abstract

Molybdenum carbide (Mo 2 C) is recognized as an alternative electrocatalyst to noble metal for the hydrogen evolution reaction (HER). Herein, a facile, low cost, and scalable method is provided for the fabrication of Mo 2 C‐based eletrocatalyst (Mo 2 C/G‐NCS) by a spray‐drying, and followed by annealing. As‐prepared Mo 2 C/G‐NCS electrocatalyst displays that ultrafine Mo 2 C nanopartilces are uniformly embedded into graphene wrapping N‐doped porous carbon microspheres derived from chitosan. Such designed structure offer several favorable features for hydrogen evolution application: 1) the ultrasmall size of Mo 2 C affords a large exposed active sites; 2) graphene‐wrapping ensures great electrical conductivity; 3) porous structure increases the electrolyte–electrode contact points and lowers the charge transfer resistance; 4) N‐dopant interacts with H + better than C atoms and favorably modifies the electronic structures of adjacent Mo and C atoms. As a result, the Mo 2 C/G‐NCS demonstrates superior HER activity with a very low overpotential of 70 or 66 mV to achieve current density of 10 mA cm −2 , small Tafel slope of 39 or 37 mV dec −1 , respectively, in acidic and alkaline media, and high stability, indicating that it is a great potential candidate as HER electrocatalyst.

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  • By comparing the impacts of amorphous and graphite coatings on the properties of the composite, amorphous carbon coatings exhibited better electrocatalytic stability in acidic media.

    “By comparing the impacts of amorphous and graphite coatings on the properties of the composite, amorphous carbon coatings exhibited better electrocatalytic stability in acidic media (Liu et al. 2019;Mir and Pandey 2018;Wei et al. 2018).”

    From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Wei et al. 2018

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Authors
Wei, H., Xi, Q., Chen, X., Guo, D., Ding, F., Yang, Z., Wang, S., Li, J., & Huang, S.
Affiliations
  • Wenzhou University (CN)
  • Guangdong University of Technology (CN)
Corresponding author
  • Chen, Xi'an
  • Huang, Shaoming
ORCID
Venue
Advanced Science
Publisher
Wiley
Published
2018-01-03
Volume
5
Issue
3
Pages
1700733-1700733
ISSN
2198-3844 (ISSN-L)
DOI
10.1002/advs.201700733
PMC
PMC5867049
OpenAlex
W2782042154
Cited by
203
References
50
Citations by year
2026: 8 · 2025: 26 · 2024: 18 · 2023: 33 · 2022: 22 · 2021: 28 · 2020: 26 · 2019: 31 · 2018: 11
FWCI
5.53
Type
journal article
Language
en
Open access
Licence
Locations
  • Advanced Science (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (51402217, 51672193)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
Keywords
molybdenum carbide, Mo2C nanoparticles, hydrogen evolution reaction, electrocatalysts, graphene wrapping, chitosan-derived carbon, spray drying, acidic and alkaline media, noble metal-free catalysts, charge transfer resistance, electronic structure modulation

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