Gupta, Vinay and Gupta, Shubhra and Miura, Norio (2009) Electrochemically synthesized large area network of CoxNiyAlz layered triple hydroxides nanosheets: A high performance supercapacitor. Journal of Power Sources, 189 (2). pp. 1292-1295. ISSN 0378-7753

PDF - Published Version Restricted to Registered users only Download (806Kb) | Request a copy

Abstract

A network of CoxNiyAlz layered triple hydroxides (LTHs) nanosheets was prepared by the potentiostatic deposition process at −1.0 V (vs. Ag/AgCl) onto stainless steel electrodes. X-ray diffraction patterns show that the CoxNiyAlzLTHs belong to the hexagonal system with layered structure. Cyclic voltammetry and charge discharge measurements in the potential range of −0.1 to 0.5 V and 0.0–0.4 V, respectively, vs. Ag/AgCl in 1 M KOH electrolyte indicate that CoxNiyAlzLTHs have excellent supercapacitive characteristics. The maximum specific capacitance of ∼1263 F g−1 was obtained for Co0.59Ni0.21Al0.20LTH. The impedance studies indicated highly conducting nature of the CoxNiyAlzLTHs.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier B.V.
Uncontrolled Keywords:	CoxNiyAlz; Layered triple hydroxides; Potentiostatic deposition; Specific capacitance; Supercapacitor
Subjects:	Electrochemistry Energy Fuels
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	27 Aug 2012 08:43
Last Modified:	27 Aug 2012 08:43
URI:	http://npl.csircentral.net/id/eprint/479

Actions (login required)

View Item