Universität zu Köln

Xia, Qi Xun, Shinde, Nanasaheb M., Zhang, Tengfei, Yun, Je Moon ORCID: 0000-0001-6565-6375, Zhou, Aiguo ORCID: 0000-0002-0029-9060, Mane, Rajaram S., Mathur, Sanjay and Kim, Kwang Ho (2018). Seawater electrolyte-mediated high volumetric MXene-based electrochemical symmetric supercapacitors. Dalton Trans., 47 (26). S. 8676 - 8683. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 1477-9234

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Abstract

The structure and morphology of titanium carbide (Ti3C2Tx) MXene, a new class of two dimensional (2D) materials, are investigated and reported. Ti3AlC2 MAX, treated with a hydrofluoric acid etching process, is used as a promising electrode material for electrochemical supercapacitor studies. The electrochemical supercapacitor performance of Ti3C2Tx as a negatrode in a natural seawater electrolyte solution, tested in a three-electrode system, demonstrated a specific capacitance of 67.7 F g(-1) at a current density of 1 A g(-1) which is in accordance with the volumetric specific capacitance of 121.8 F cm(-3). A symmetric supercapacitor assembled with a Ti3C2Tx//Ti3C2Tx electrode configuration revealed a volumetric specific capacitance of 27.4 F cm(-3) at 0.25 A g(-1), and 96.6% capacitance retention even after 5000 cycles, which is superior to those reported previously in similar systems, suggesting the importance of abundant and cost-effective seawater as a natural electrolyte in developing energy storage devices.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Xia, Qi Xun UNSPECIFIED UNSPECIFIED UNSPECIFIED Shinde, Nanasaheb M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhang, Tengfei UNSPECIFIED UNSPECIFIED UNSPECIFIED Yun, Je Moon UNSPECIFIED orcid.org/0000-0001-6565-6375 UNSPECIFIED Zhou, Aiguo UNSPECIFIED orcid.org/0000-0002-0029-9060 UNSPECIFIED Mane, Rajaram S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED Kim, Kwang Ho UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-179736
DOI:	10.1039/c8dt01375f
Journal or Publication Title:	Dalton Trans.
Volume:	47
Number:	26
Page Range:	S. 8676 - 8683
Date:	2018
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	1477-9234
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 HIGH-PERFORMANCE; ENERGY; MICROWAVE; INTERCALATION; NANOCRYSTALS; CAPACITANCE; NANOWIRES; BEHAVIOR; FILMS Multiple languages Chemistry, Inorganic & Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17973