Publication Type Journal Article
Title Hydrothermally grown Ni0.7Zn0.3O directly on carbon fiber paper substrate as an electrode material for energy storage applications
Authors Kush Kumar Upadhyay S Eugénio R. Della Noce T. M. Silva Maria J. Carmezim Maria F. Montemor
Groups CSSE
Journal INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Year 2016
Month June
Volume 41
Number 23
Pages 9876-9884
Abstract Nickel oxides because of their excellent electrochemical performance have been considered attractive materials for electrochemical energy storage. However, their application as active material for redox supercapacitor electrodes has been limited by poor electrical conductivity. In order to improve this property, herein we synthesized a nanonet of Ni-Zn-mixed oxide, by facile hydrothermal route, directly on the substrate. The Zn-modified oxide material showed good electrochemical performance, displaying specific capacitance of 770 F g(-1) at 1 A g(-1) and almost 120\% capacitance retention after 2000 cycles of charge discharge at 2 A g-1 in 2 M KOH. Electrochemical impedance results revealed that the Ni0.7Zn0.3O mixed oxide displayed increased conductivity compared to the single NiO material. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
DOI http://dx.doi.org/10.1016/j.ijhydene.2016.03.126
ISBN
Publisher
Book Title
ISSN 0360-3199
EISSN 1879-3487
Conference Name
Bibtex ID ISI:000378359400022
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