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Cited by 37Electrocatalysts for Energy ConversionFuel Cells and Related MaterialsCO2 Reduction Techniques and Catalysts

One-pot hydrothermal synthesis of Al-doped MoS2@graphene aerogel nanocomposite electrocatalysts for enhanced hydrogen evolution reaction

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Su, Wenqiang, Wang, Ping, Cai, Zhengyang, Yang, Junhe, Wang, Xianying·2019·Results in Physics
DOI 10.1016/j.rinp.2018.11.066
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Abstract

Molybdenum disulfide (MoS 2 ) has shown its promising performance for use as an electrocatalyst for hydrogen evolution reaction (HER). However, it has commonly suffered from limited edge active sites and stagnant conductivity in this regard. Therefore in the present work, with integrating graphene aerogel (GA) supporting and Al ions doping, we report for the first time one-pot hydrothermal synthesis of Al-doped MoS 2 @GA aerogel electrocatalysts with 3D porous network architecture. Vertical MoS 2 ultrathin nanosheets with defect-rich structure are grown on graphene nanosheets at the optimum weight ratio of 5 wt% GA, leading to the enhancement of HER activity. Simultaneously Al doping of 0.77 at% further optimizes the number of exposed active sites and conductivity. The overpotential at a current of 10 mA·cm −2 was successfully reduced to 212 mV with a Tafel slope value down to 41 mV/dec, benefiting from synergistically structural and electronic modulating of MoS 2 . The study thus sheds light on designing and developing high-performance 3D network electrocatalysts for HER reaction.

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  • Graphene aerogels are employed to improve the electronic conductivity as well as stability of HER electrocatalysts in long-term operation.

    “Its aerogel structure has advantages of desirable active sites, excellent conductivity, and structural flexibility, and thus, graphene aerogels are employed to improve the electronic conductivity as well as stability of HER electrocatalysts in the long-term operation [21,22].”

    From Study of multi-faceted CoS2 introduced graphene aerogel hybrids via chemical approach for an effective electrocatalytic water splitting (2021) · cites this paper as [21]

    The Electrochemical HER activities section says adding graphene aerogel enhanced the composite’s conductivity. The Cycling stability and durability section reports that the Al-doped MoS₂@graphene aerogel catalyst maintained its current density over 10 hours, but it does not show that graphene aerogel itself improved long-term stability. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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Cited by

Sorted by citations

Authors
Su, W., Wang, P., Cai, Z., Yang, J., & Wang, X.
Affiliations
University of Shanghai for Science and Technology (CN)
Corresponding author
Wang, Ping
ORCID
Venue
Results in Physics
Publisher
Elsevier BV
Published
2019-03
Volume
12
Pages
250-258
ISSN
2211-3797 (ISSN-L)
DOI
10.1016/j.rinp.2018.11.066
OpenAlex
W2903427170
Cited by
37
References
4
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 3 · 2022: 9 · 2021: 4 · 2020: 6 · 2019: 4
FWCI
0.81
Type
journal article
Language
en
Open access
Licence
Locations
  • Results in Physics (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Science and Technology Commission of Shanghai Municipality (16JC402200, 18511110600, 16060502300)
  • National Natural Science Foundation of China (51771121, 51702212, 51572173, 51602197)
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
MoS2, graphene aerogel, aluminum doping, hydrogen evolution reaction, electrocatalysts, one-pot hydrothermal synthesis, ultrathin nanosheets, three-dimensional porous structure, edge active sites, overpotential, Tafel slope

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