Cited by 288Electrocatalysts for Energy ConversionCO2 Reduction Techniques and CatalystsSupercapacitor Materials and Fabrication

Porous metallic MoO 2 -supported MoS 2 nanosheets for enhanced electrocatalytic activity in the hydrogen evolution reaction

Yang, Linjing, Zhou, Weijia, Hou, Dongman, Zhou, Kai, Li, Guoqiang, Tang, Zhenghua, Li, Ligui, Chen, Shaowei·2015·Nanoscale

Abstract

Advanced materials for electrocatalytic water splitting are central to renewable energy research. In this work, MoS2 nanosheets supported on porous metallic MoO2 (MoS2/MoO2) were produced by sulfuration treatments of porous and highly conductive MoO2 for the hydrogen evolution reaction. Porous MoO2 with one-dimensional channel-like structures was prepared by calcination at elevated temperatures using phosphomolybdic acid as the precursor and mesoporous silica (SBA-15) as the template, and the subsequent hydrothermal treatment in the presence of thioacetamide led to the transformation of the top layers to MoS2 forming MoS2/MoO2 composites. Electrochemical studies showed that the obtained composites exhibited excellent electrocatalytic activity for HER with an onset potential of -104 mV (vs. RHE), a large current density (10 mA cm(-2) at -0.24 V), a small Tafel slope of 76.1 mV dec(-1) and robust electrochemical durability. The performance might be ascribed to the high electrical conductivity and porous structures of MoO2 with one-dimensional channels of 3 to 4 nm in diameter that allowed for fast charge transport and collection.

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Crossref · 10.1039/c4nr06754a

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Authors
Yang, L., Zhou, W., Hou, D., Zhou, K., Li, G., Tang, Z., Li, L., & Chen, S.
Affiliations
  • South China University of Technology (CN)
  • University of California, Santa Cruz (US)
Corresponding author
  • Zhou, Weijia
  • Chen, Shaowei
Venue
Nanoscale
Published
2015
Volume
7
Issue
12
Pages
5203-5208
ISSN
  • 2040-3364 (ISSN-L)
  • 2040-3372
OpenAlex
W2132861507
Cited by
288
References
40
Citations by year
2026: 3 · 2025: 13 · 2024: 16 · 2023: 12 · 2022: 19 · 2021: 26 · 2020: 37 · 2019: 35 · 2018: 40 · 2017: 46 · 2016: 25 · 2015: 16
FWCI
12.53
Type
journal article
Language
en
Open access
closed
Locations
  • Nanoscale (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
Keywords
MoS2 nanosheets, hydrogen evolution reaction, electrocatalysis, electrochemical water splitting, sulfidation, phosphomolybdic acid, SBA-15 template, mesoporous silica, charge transport, Tafel slope, electrochemical durability

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