Facile preparation of three-dimensional porous hydrous ruthenium oxide electrode for supercapacitors

Myung Gi Jeong; Kai Zhuo; Serhiy Cherevko; Woo Jae Kim; Chan Hwa Chung

doi:10.1016/j.jpowsour.2012.12.037

Facile preparation of three-dimensional porous hydrous ruthenium oxide electrode for supercapacitors

Myung Gi Jeong, Kai Zhuo, Serhiy Cherevko, Woo Jae Kim, Chan Hwa Chung

Department of Chemical Engineering & Materials Science

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

A porous hydrous ruthenium oxide for supercapacitors is fabricated by electro-deposition accompanied with hydrogen-evolution reaction. This high-surface-area electrode (207.5 m2 g^-1) is developed by electrochemical de-alloying process of copper from as-deposited Ru-(Cu) foam (23.5 m2 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 (∼98%) even after 3000 cycles.

Original language	English
Pages (from-to)	806-811
Number of pages	6
Journal	Journal of Power Sources
Volume	244
DOIs	https://doi.org/10.1016/j.jpowsour.2012.12.037
State	Published - 2013

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2012-0001525 ).

Keywords

Dendrite structure
Electrochemical dealloying
Hydrogen evolution reaction
Porous hydrous ruthenium oxide
Pseudo-capacitor

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10.1016/j.jpowsour.2012.12.037

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title = "Facile preparation of three-dimensional porous hydrous ruthenium oxide electrode for supercapacitors",

abstract = "A porous hydrous ruthenium oxide for supercapacitors is fabricated by electro-deposition accompanied with hydrogen-evolution reaction. This high-surface-area electrode (207.5 m2 g-1) is developed by electrochemical de-alloying process of copper from as-deposited Ru-(Cu) foam (23.5 m2 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 (∼98%) even after 3000 cycles.",

keywords = "Dendrite structure, Electrochemical dealloying, Hydrogen evolution reaction, Porous hydrous ruthenium oxide, Pseudo-capacitor",

author = "Jeong, {Myung Gi} and Kai Zhuo and Serhiy Cherevko and Kim, {Woo Jae} and Chung, {Chan Hwa}",

note = "Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2012-0001525 ). ",

year = "2013",

doi = "10.1016/j.jpowsour.2012.12.037",

language = "English",

volume = "244",

pages = "806--811",

journal = "Journal of Power Sources",

issn = "0378-7753",

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T1 - Facile preparation of three-dimensional porous hydrous ruthenium oxide electrode for supercapacitors

AU - Jeong, Myung Gi

AU - Zhuo, Kai

AU - Cherevko, Serhiy

AU - Kim, Woo Jae

AU - Chung, Chan Hwa

N1 - Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2012-0001525 ).

PY - 2013

Y1 - 2013

N2 - A porous hydrous ruthenium oxide for supercapacitors is fabricated by electro-deposition accompanied with hydrogen-evolution reaction. This high-surface-area electrode (207.5 m2 g-1) is developed by electrochemical de-alloying process of copper from as-deposited Ru-(Cu) foam (23.5 m2 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 (∼98%) even after 3000 cycles.

AB - A porous hydrous ruthenium oxide for supercapacitors is fabricated by electro-deposition accompanied with hydrogen-evolution reaction. This high-surface-area electrode (207.5 m2 g-1) is developed by electrochemical de-alloying process of copper from as-deposited Ru-(Cu) foam (23.5 m2 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 (∼98%) even after 3000 cycles.

KW - Dendrite structure

KW - Electrochemical dealloying

KW - Hydrogen evolution reaction

KW - Porous hydrous ruthenium oxide

KW - Pseudo-capacitor

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U2 - 10.1016/j.jpowsour.2012.12.037

DO - 10.1016/j.jpowsour.2012.12.037

M3 - Article

AN - SCOPUS:84886092044

SN - 0378-7753

VL - 244

SP - 806

EP - 811

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Facile preparation of three-dimensional porous hydrous ruthenium oxide electrode for supercapacitors

Abstract

Bibliographical note

Keywords

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