Cited by 21Electrocatalysts for Energy ConversionSupercapacitor Materials and FabricationFuel Cells and Related Materials

Approaching well-dispersed MoS2 assisted with cellulose nanofiber for highly durable hydrogen evolution reaction

Chen, Ming, Deng, Songlin, Qing, Yan, Xu, Han, Liao, Yu, Li, Lei, Zhang, Zhen, Yan, Ning +3 more·2022·Carbohydrate Polymers

Abstract

The agglomeration and low conductivity of molybdenum disulfide (MoS 2) electrocatalysts restrict the presentation of its real intrinsic reaction activity, which leads to challenges for the high-performance hydrogen evolution reaction (HER). Herein, a well-dispersed and superhydrophilic/superaerophobic MoS 2 catalyst with uniform three-dimensional conductive networks have been prepared assisted with cellulose nanofiber (CNF) and carboxylated multi-walled carbon nanotubes (cMWCNT). The resulted CNF/cMWCNT/MoS 2 catalysts present a superhydrophilic/superaerophobic state with contact angles for water and bubble of 0° and 154.1° respectively. This structure effectively disperses MoS 2 nanoparticles through uniform embeddedness and promotes gas-liquid mass transfer via wettability. Benefiting from these optimizations, the CNF/cMWCNT/MoS 2 exhibits better HER performance and a low overpotential (154 mV @ 10 mA/cm 2). Encourangingly, CNF/cMWCNT/MoS 2 catalysts have a slight decay of 6.99 % at 10 mA/cm 2 after 100 h, while the cMWCNT/MoS 2 shows a decay of 35.83 %. This approach using natural CNF for well-dispersed catalysts provides a potential for high-performance HER electrode design.

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Crossref · 10.1016/j.carbpol.2022.119754

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  • A gel-skeleton electrode using cellulose nanofibers, carboxylated multi-walled carbon nanotubes, and hydrothermally synthesized MoS2 particles is superaerophobic with bubble contact angle 154.1°, and its catalyst performance is superior to MoS2 supported by carbon cloth and an electrode without CNF skeleton at the same loading.

    “Chen et al. [178] prepared the catalytic electrode with a gel skeleton using cellulose nanofibers (CNFs) as the gel skeleton, carboxylated multi-walled carbon nanotubes (cMWCNTs) as the conductive medium, and hydrothermally synthesized MoS2 particles as the catalyst (Fig. 16a). The hydrophilic CNF gel makes the electrode superaerophobic, with a bubble contact angle as high as 154.1°. The catalyst”

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Authors
Chen, M., Deng, S., Qing, Y., Xu, H., Liao, Y., Li, L., Zhang, Z., Yan, N., Tian, C., Wu, Y., & Wu, Y.
Affiliations
Central South University of Forestry and Technology (CN)
Corresponding author
  • Qing, Yan
  • Wu, Yiqiang
Venue
Carbohydrate Polymers
Publisher
Elsevier BV
Published
2022-10
Volume
294
Pages
119754
ISSN
0144-8617 (ISSN-L)
OpenAlex
W4283168119
Cited by
20
References
71
Citations by year
2026: 5 · 2025: 4 · 2024: 5 · 2023: 5 · 2022: 1
FWCI
0.68
Type
journal article
Language
en
Open access
closed
Locations
  • Carbohydrate Polymers (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
Keywords
MoS2, hydrogen evolution reaction, cellulose nanofibers, carboxylated multi-walled carbon nanotubes, catalyst dispersion, gas-liquid mass transfer, wettability, electrocatalyst durability, 3D conductive network
MeSH terms
Cellulose, Hydrogen, Molybdenum, Nanotubes, Carbon, Nanofibers

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