Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 65, Issue -, Pages 62-71Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2018.04.013
Keywords
Co3Se4; Carbon nanotubes; Hydrogen evolution; Electrocatalyst; Supercapacitor
Funding
- New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) [20173010032080]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2012R1A6A1029029]
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Co3Se4 on nitrogen doped carbon nanotube (N-CNT) with applications for supercapacitor and hydrogen evolution reaction (HER) is synthesized by pyrolysis and solvothermal processes. The catalyst due to improved electrical conductivity and increased rate of removal of H-2 liberated, delivers a high HER activity, by reaching eta(10) at 174 mV arid 240 mV, Tafel slope of 73.2 and 43.8 mV dec(-1) in alkaline and acidic medium respectively. Co3Se4/N-CNT as supercapacitor electrodes, yields a capacitance of 114 F g(-1) at a 2 mV s(-1) scan rate, with an excellent capacitive retention of 96% of the initial capacitance after 5000 cycles. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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