Xia, Qi Xun, Shinde, Nanasaheb M., Yun, Je Moon, Zhang, Tengfei, Mane, Rajaram S., Mathur, Sanjay and Kim, Kwang Ho (2018). Bismuth Oxychloride/MXene symmetric supercapacitor with high volumetric energy density. Electrochim. Acta, 271. S. 351 - 361. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 1873-3859

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Abstract

Since the discovery of two-dimensional (2D) graphene, a new class of 2D materials with excellent electrical conductivity has recently been attracting attention in studying promising electrode materials in energy storage applications. Herein, bismuth oxychloride nanosheets-immobilised Ti3C2Tx MXene material (TCBOC) is synthesised by a facile and cost-effective chemical bath deposition (CBD) route. The bismuth oxychloride (BiOCl) nanosheets are grown and immobilised on surfaces of Ti3C2Tx-MXene flakes. An electrode based on the TCBOC nanocomposite exhibited a remarkably volumetric specific capacitance of 396.5 F cm(-3) at 1 A g(-1) and 228.0 F cm(-3) at 15 A g(-1). Furthermore, a symmetric supercapacitor (SSC) assembled using TCBOC material proves to have a high energy density of 15.2 Wh kg (-1) at a power density of 567.4 Wkg (-1) compared to SSCs using previously reported Ti3C2Tx MXene materials. The SSC shows cycle life retention of 85.0% after 5000 cycles (at 5 A g(-1)). The enhanced capacitive performance is attributed to the increased surface area due to BiOCl nanosheets anchored on a 2D MXene surface, the activities of BiOCl sheets, and the excellent conductivity of a Ti3C2Tx MXene material. (C) 2018 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Xia, Qi XunUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shinde, Nanasaheb M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yun, Je MoonUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhang, TengfeiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mane, Rajaram S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mathur, SanjayUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kim, Kwang HoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-186856
DOI: 10.1016/j.electacta.2018.03.168
Journal or Publication Title: Electrochim. Acta
Volume: 271
Page Range: S. 351 - 361
Date: 2018
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication: OXFORD
ISSN: 1873-3859
Language: English
Faculty: Faculty of Mathematics and Natural Sciences
Divisions: Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
2-DIMENSIONAL TITANIUM CARBIDE; ASYMMETRIC SUPERCAPACITOR; ANODE MATERIALS; CHEMICAL-SYNTHESIS; ION BATTERIES; MXENE; PERFORMANCE; INTERCALATION; ELECTRODE; GRAPHENEMultiple languages
ElectrochemistryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/18685

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