Authors: Junying Xue Wenle Ma Li Wang Hongtao Cui
Publish Date: 2015/12/22
Volume: 78, Issue: 1, Pages: 120-125
Abstract
βNiOH2 nanosheets with rough surface were synthesized in the presence of glycerol through the hydrolysis of nickel acetate under hydrothermal condition During the growth of βNiOH2 glycerol functionalized as a modifier to interfere the ordered stacking of NiOH2 layers leading to the rough surface of nanosheets The resulted large surface area guaranteed the effective interface reactions occurring between electrolyte ions and βNiOH2 As a result the asprepared βNiOH2 nanosheets presented promoted electrochemical performance The material had a maximum specific capacitance of 2100 F g−1 at current density of 13 A g−1 which was close to its theoretical value At high current density of 263 A g−1 it remained high specific capacitance of 1281 F g−1 After 2000 charge and discharge cycles the material still remained 938 of its initial specific capacitance These results demonstrated that the material could be a promising candidate for application in supercapacitor
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