Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 248, Issue -, Pages 357-365Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2019.02.035
Keywords
Interconnected porous carbon; MoS2; Few-layered; Vertical alignment; Hydrogen evolution reaction
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2015R1D1A1A01060398]
- Center of Integrated Smart Sensors - Ministry of Science, ICT and Future Planning, Republic of Korea, as Global Frontier Project [CISS- 012M3A6A6054186]
- National Natural Science Foundation of China [21703200]
- Natural Science Foundation of Jiangsu Province [BK20170485]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [17KJB150043]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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MoS2 has been considered as a non-precious alternative to platinum based electrocatalyst for electrochemical hydrogen evolution. Since most of the active site exists on the edges of MoS2, a material design that could increase the exposure of the edges could improve its catalytic activity. In this work, we prepared small sized and few-layered MoS2 that is vertically aligned on three-dimensional interconnected porous carbon nanosheets (IPC). Benefiting from exposure of MoS2 edges, MoS2/IPC composite exhibits a high catalytic activity (225 mA cm(-2) at -250 mV vs. RHE, and Tafel slope of 38 mV dec(-1)) and maintains steady performance for several hours. Since the procedure to prepare MoS2/IPC composites is scalable and cost-effective, our method of preparing few-layered MoS2 on porous carbon shows great potential as a competitive electrocatalysts for HER.
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