Three‐Dimensional Graphene@Carbon Nanotube Aerogel‐Supported Layered MoS2/Co9S8 Composite as an Efficient pH‐Universal Electrocatalyst for Hydrogen Evolution
Abstract
Developing high‐performance non‐noble‐metal electrocatalysts for the hydrogen evolution reaction (HER), which can be stably operated under various conditions is highly required in realistic production. In this work, a hierarchical architecture consisting of MoS2 and Co9S8 anchored on a reduced graphene oxide (rGO) substrate was first synthesized, then by introducing blank graphene oxide (GO) and multi‐walled carbon nanotubes (CNTs), interconnected three‐dimensional (3D) composite aerogels with high conductivity were obtained, showing a high activity for the HER, with low overpotentials (η10) at about 90 mV (0.5 M H2SO4), 176 mV (1.0 M PBS), and 102 mV (1.0 M KOH). The high performance might be caused by special hierarchical 3D structures maximally exposing the active edges of both MoS2 and Co9S8. Additionally, 3D MoS2/Co9S8/rGO‐CNTs showed a superior stability and could work stably under different conditions for more than 20 h or 1000 cycles, which is attributed to the good crystallinity after annealing, the highly symmetrical structures between Co9S8 and MoS2, and robust protection provided by the 3D carbon substrate. The results presented herein may provide an effective way to develop non‐noble‐metal electrocatalysts for different fields including the HER.
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MoS2/Co9S8/rGO-CNT showed a low η10 of 90, 176, and 102 mV in 0.5 M H2SO4, 1 M PBS, and 1 M KOH, respectively.
“This binder-free composite aerogel showed promising HER activity with low η10 of 90, 176, and 102 mV in 0.5 M H2SO4, 1 M PBS and 1 M KOH, respectively.”
From Aerogels for Electrocatalytic Hydrogen Production (2024) · cites this paper as [35]
MoS2/Co9S8/rGO-CNT displayed Tafel slopes of 49, 89, and 61 mV dec−1 in 0.5 M H2SO4, 1 M PBS, and 1 M KOH, respectively.
“the electrocatalyst displayed Tafel slopes of 49, 89, and 61 mV dec−1 in 0.5 M H2SO4, 1 M PBS and 1 M KOH respectively.”
From Aerogels for Electrocatalytic Hydrogen Production (2024) · cites this paper as [35]
Cites
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Kobina Sam, D., Kobina Sam, E., & Lv, X. (2020) · ChemElectroChem · doi:10.1002/celc.202000829 · Cited by 89 · see citing works
Aerogels for Electrocatalytic Hydrogen Production
Murthy, A. P. (2024) · Aerogels for Energy Saving and Storage · doi:10.1002/9781119717645.ch12 · Cited by 2 · see citing works
- Authors
- Cheng, Y., Ling, M., Jiang, B., Wu, F., Zhao, Z., Li, X., He, P., & Wei, X.
- Affiliations
- School of Chemistry and Chemical Engineering Anhui University of Technology No. 59 Hudong Road Maanshan 243002 P. R. China
- Anhui Normal University (CN)
- Anhui Key Laboratory of Functional Coordination Compounds, School of Chemistry and Chemical Engineering Anqing Normal University Anqing 246011 P. R. China
- Anhui University of Technology (CN)
- Venue
- ChemElectroChem
- Publisher
- Wiley
- Published
- 2018-12-07
- Volume
- 6
- Issue
- 3
- Pages
- 748-756
- ISSN
- 2196-0216 (ISSN-L)
- OpenAlex
- W2901895058
- Cited by
- 26
- References
- 3
- Citations by year
- 2026: 2 · 2024: 3 · 2023: 4 · 2022: 3 · 2021: 2 · 2020: 9 · 2019: 3
- FWCI
- 0.81
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ChemElectroChem (publishedVersion)
- Funders
- National Natural Science Foundation of P. R. China (21771003, 21271006, 21071005)
- Natural Science Foundation of the Education Bureau of Anhui Province (KJ2015 A024)
- 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
- hydrogen evolution reaction, non-noble metal electrocatalysts, reduced graphene oxide, multi-walled carbon nanotubes, pH-universal electrocatalysis, cobalt sulfide, MoS2, catalyst stability
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