Document Type
Article
Publication Date
1-1-2017
Abstract
A facile and fast approach for the synthesis of a nanostructured nickel hydroxide (Ni(OH)2) via sonochemical technique is reported in the present study. The X-ray diffraction results confirmed that the synthesized Ni(OH)2 was oriented in β-phase of hexagonal brucite structure. The nanostructured Ni(OH)2 electrode exhibited the maximum specific capacitance of 1256 F/g at a current density of 200 mA/g in 1 M KOH(aq). Ni(OH)2 electrodes exhibited the pseudocapacitive behavior due to the presence of redox reaction. It also exhibited long-term cyclic stability of 85% after 2000 cycles, suggesting that the nanostructured Ni(OH)2 electrode will play a promising role for high performance supercapacitor application.
Keywords
Nickel hydroxide, Sonochemical synthesis, Surface morphology, Electrode materials
Divisions
PHYSICS
Funders
Ministry of Education, Malaysia: High Impact Research Grant (H-21001-F000046),Post-graduate Research Grant (PG034-2015A),University of Malaya: University of Malaya Research Grant (RP025A-14AFR),UGC-Dr. D.S. Kothari Postdoctoral Fellowship (Ref no: No.F.4-2/2006 (BSR)/EN/15–16/0031)
Publication Title
Progress in Natural Science: Materials International
Volume
27
Issue
4
Publisher
Elsevier