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2013 | "Facile preparation of three-dimensional porous hydrous ruthenium oxid…

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작성자 관리자 /   작성일2015-08-25 /   조회584회

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Title : Facile preparation of three-dimensional porous hydrous ruthenium oxide electrode for supercapacitors
Authors: Myung-Gi Jeong, Kai Zhuo, Serhiy Cherevko, Woo-Jae Kim, Chan-Hwa Chung

Journal : Journal of Power Sources
Vol/Page : 244/806-811
DOI : 10.1016/j.jpowsour.2012.12.037

Abstract :
 porous hydrous ruthenium oxide for supercapacitors is fabricated by electro-deposition accompanied with hydrogen-evolution reaction. This high-surface-area electrode (207.5 m(2) g(-1)) is developed by electrochemical de-alloying process of copper from as-deposited Ru-(Cu) foam (23.5 m(2) g(-1)). The threedimensional structures with open pores and numerous dendritic morphologies produce good electrochemical performances by providing the pathway for facile penetration of electrolytes into active electrode surface. The three-dimensional porous hydrous ruthenium oxide exhibits good capacitance performance of 809 F g(-1) at 1.5 A g(-1) high energy density (112 Wh kg(-1)), and excellent stability retention (similar to 98%) even after 3000 cycles.

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