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2012 | "Formation of nanoporous nickel oxides for supercapacitors prepared by…

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작성자 관리자 /   작성일2015-08-25 /   조회1,257회

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Title : Formation of nanoporous nickel oxides for supercapacitors prepared by electrodeposition
Authors: Myung-Gi Jeong, Kai Zhuo, Serhiy Cherevko, and Chan-Hwa Chung

Journal : Korean Journal of Chemical Engineering
Vol/No/Page : 29/12/1802-1805
DOI : 10.1007/s11814-012-0097-x

Abstract :
Highly nanoporous nickel oxide electrodes were obtained by electrodeposition accompanied by hydrogen evolution reaction and the selective electrochemical dealloying of copper from Ni-(Cu) porous foam. The nanoporous nickel oxide electrodes consequently have numerous dendritic morphologies composed of nanopores with 20-30 nm diameters. The specific capacitances were 428 F g−1 for as-deposited Ni-(Cu) foam electrode and 1,305 F g−1 for nanoporous nickel-oxide electrode after dealloying process, respectively. This indicates increased surface area by dealloying process leads to innovative increase of specific capacitance.

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