Journal
ELECTROCHIMICA ACTA
Volume 166, Issue -, Pages 26-31Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.03.067
Keywords
Carbon fibers; MoS2 nanosheets; Pt nanoparticles; Hydrogen evolution reaction
Categories
Funding
- National Science Fund for Excellent Young Scholars of China [51422203]
- National Natural Science Foundation of China [51372001, 51002052]
- Excellent Youth Foundation of Guangdong Scientific Committee [S2013050013882]
- Key Project in Science and Technology of Guangdong Province [2011A080801018]
- Strategic Special Funds for LEDs of Guangdong Province [2011A081301010, 2012A080302004, 2012A080302002]
- PhD Start-up Funds of the Natural Science Foundation of Guangdong Province [x2hjB6130130, S2013040016465]
- Zhujiang New Stars of Science Technology [2014J2200061]
- Recruitment Program of Global Experts
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Advanced materials for electrocatalytic water splitting are central to renewable energy research. In this study, we describe a two-step reaction for preparing hydrogen evolution reaction (HER) electrodes composed of Pt nanoparticles and MoS2 nanosheets grown on carbon fibers. The morphology and the structures are characterized by a variety of techniques including SEM, TEM, XRD and XPS. Detailed electrochemical characterizations demonstrate that the Pt nanoparticles/MoS2 nanosheets/carbon fibers electrode (2.03 w% Pt) exhibited an excellent catalytic activity for HER in an acidic electrolyte with an overpotential of -5 mV (vs. HER). And the corresponding Tafel slope is estimated to be 53.6 mV/dec. Stability tests through long-term potential cycles and extended electrolysis confirm the exceptional durability of the catalyst. (C) 2015 Elsevier Ltd. All rights reserved.
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