Universität zu Köln

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:	Creators Email ORCID ORCID Put Code Xia, Qi Xun UNSPECIFIED UNSPECIFIED UNSPECIFIED Shinde, Nanasaheb M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yun, Je Moon UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhang, Tengfei UNSPECIFIED UNSPECIFIED UNSPECIFIED Mane, Rajaram S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED Kim, Kwang Ho UNSPECIFIED UNSPECIFIED UNSPECIFIED
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:	Keywords Language 2-DIMENSIONAL TITANIUM CARBIDE; ASYMMETRIC SUPERCAPACITOR; ANODE MATERIALS; CHEMICAL-SYNTHESIS; ION BATTERIES; MXENE; PERFORMANCE; INTERCALATION; ELECTRODE; GRAPHENE Multiple languages Electrochemistry Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/18685