Journal
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
Volume 23, Issue -, Pages 85-92Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2014.02.027
Keywords
NiO; Ultrafine nanoparticles; Electrochemical synthesis; Supercapacitive behavior
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Well-dispersed NiO nanoparticles were prepared via cathodic electrodeposition followed by a heat-treatment method. The supercapacitive performance of the prepared nanoparticles was analyzed by means of cyclic voltammetry (CV) and galvanostatic charge-discharge tests at -0.2-0.5 V potential windows in 1 M KOH. The nanoparticles exhibited high specific capacitance (1623.1 F g(-1) at the scan rate of 5 mV s(-1)) and good long-term cycling stability (9.6% capacity decay after 1000 cycling at the current density of 2 A g(-1)). (C) 2014 Elsevier Ltd. All rights reserved.
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