Pt nanoparticles/MoS2 nanosheets/carbon fibers as efficient catalyst for the hydrogen evolution reaction. (1st June 2015)

• Record Type: Journal Article
• Authors: Hou, Dongman; Zhou, Weijia; Liu, Xiaojun; Zhou, Kai; Xie, Jian; Li, Guoqiang; Chen, Shaowei
• Is Part Of: Electrochimica acta. Volume 166(2015)
• Page Start: 26
• Page End: 31
• Publication Date: 2015-06-01
• Subjects: Carbon fibers -- MoS2 nanosheets -- Pt nanoparticles -- Hydrogen evolution reaction; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.03.067
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: 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.