Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 71, Issue -, Pages 250-259Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2018.11.033
Keywords
Zinc cobalt sulfide; Asymmetric supercapacitor; Growth mechanism; Energy density; Power density
Funding
- Yeungnam University, South Korea [216A380199]
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Rod-like zinc cobalt sulfide (ZCS) with controlled uniform structure was synthesized using a single-step hydrothermal method and its growth mechanism was investigated. A ZCS-based electrode showed an ultrahigh capacitance of 2,418 F g(-1) (967 C g(-1)) at 1 A g(-1) with a good cycling stability of 83% after 10,000 cycles. Moreover, an asymmetric ZCS-12//activated carbon supercapacitor, exhibited a high capacitance of 142 F g(-1) (227 C g(-1)) at 0.5 A g(-1) and a high energy density of 51 Wh kg(-1) and a high power density of 8 kW kg(-1), highlighting the next generation high performance supercapacitors. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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