Microflowers of Sn-Co-S derived from ultra-thin nanosheets for supercapacitor applications

Kumar, Sachin, Mir, Irshad Ahmed, Ahmad, Zubair, Hui, Kwan San ORCID: https://orcid.org/0000-0001-7089-7587, Dinh, Duc Anh, Zhu, Ling, Hui, Kwun Nam and Shim, Jae-Jin (2022) Microflowers of Sn-Co-S derived from ultra-thin nanosheets for supercapacitor applications. Journal of Energy Storage, 49. ISSN 2352-152X

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Abstract

Herein, for the first time, we report 3D broccoli-like microflowers of Sn-Co-S directly grown on the Ni foam (Sn-Co-S/NiF) using an easy solvothermal method for the supercapacitor application. The as-fabricated Sn-Co-S/NiF electrode possesses an ultra-high specific capacitance of 2319.3 F g−1 (specific capacity of 418.7 mAh g−1) at 5 mA cm−2 and an outstanding rate capability of 70.3 %. The optimized Co doping, and unique architecture of the electrode may be responsible for the excellent performance of the electrode. Taking benefit from the high specific capacitance and fast charge transport properties of Sn-Co-S/NiF electrode, the fabricated asymmetric supercapacitor (ASC) exhibits a large potential window of 1.7 V and outstanding cycling stability of 95.8% after 10000 cycles. Moreover, the ASC device delivers an excellent energy density of 66.9 W h kg−1 at a power density of 560.1 W kg−1 which is substantially high as compared to recently reported ASC devices. These findings confirm the potential use of Sn-Co-S/NiF in new generation energy-storage devices.

Item Type:	Article
Additional Information:	Funding Information: This work was financially supported by the General program of Guangdong Natural Science Foundation ( 2019A1515011762 ) and Shenzhen University fund (No. 2019128). This work was also supported by the National Research Foundation (NRF) of The Republic of Korea under the framework of Priority Research Centers Program (2014R1A6A1031189) funded by the Ministry of Education, The Republic of Korea. Publisher Copyright: © 2022
Uncontrolled Keywords:	energy storage devices,metal sulfides,microflowers,sns,supercapacitor,renewable energy, sustainability and the environment,energy engineering and power technology,electrical and electronic engineering,sdg 7 - affordable and clean energy ,/dk/atira/pure/subjectarea/asjc/2100/2105
Faculty \ School:	Faculty of Science > School of Engineering
Related URLs:	http://www.scopus.com/inward/record.url?...
Depositing User:	LivePure Connector
Date Deposited:	25 Apr 2024 10:32
Last Modified:	25 Apr 2024 10:32
URI:	https://ueaeprints.uea.ac.uk/id/eprint/95012
DOI:	10.1016/j.est.2022.104084

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