Catalytic activity of carbon-sphere/Co3O4/RuO 2 nanocomposite for Li-air batteries

Chang Sung Park; Jae Hyun Kim; Yong Joon Park

doi:10.1007/s10832-013-9831-y

Catalytic activity of carbon-sphere/Co₃O₄/RuO ₂ nanocomposite for Li-air batteries

Chang Sung Park
, Jae Hyun Kim
, Yong Joon Park

Division of Energy Techonology

Kyonggi University

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

24 Scopus citations

Abstract

A carbon-sphere/Co₃O₄/RuO₂ nanocomposite was fabricated as part of a new approach to develop advanced Li-air batteries. The nanocomposite showed homogeneously dispersed Co₃O₄ and RuO₂ nanoparticles on the surface of carbon spheres, whose shape was effective in increasing the catalytic surface area and enhancing the stability of carbon and the catalyst. A high discharge capacity, relatively stable reversibility, and low overpotential were observed in electrochemical tests of an electrode containing this carbon-sphere/Co₃O₄/RuO ₂ nanocomposite. The results showed that the nanocomposite can be introduced as a promising catalyst in Li-air cells.

Original language	English
Pages (from-to)	224-230
Number of pages	7
Journal	Journal of Electroceramics
Volume	31
Issue number	1-2
DOIs	https://doi.org/10.1007/s10832-013-9831-y
State	Published - Oct 2013

Bibliographical note

Funding Information:
Acknowledgments This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government(MEST) (NRF-2009-C1AAA001-0094219) and a basic research program (11_EN-03) through the Daegu-Gyeongbuk Institute of Science and Technology (DGIST) funded by the Ministry of Education, Science and Technology (MEST). This work was also supported by Kyonggi University's Graduate Research Assistantship 2012.”

Keywords

Air electrode
Catalyst
CoO
Composite
Li-air battery
RuO

Access to Document

10.1007/s10832-013-9831-y

Cite this

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title = "Catalytic activity of carbon-sphere/Co3O4/RuO 2 nanocomposite for Li-air batteries",

abstract = "A carbon-sphere/Co3O4/RuO2 nanocomposite was fabricated as part of a new approach to develop advanced Li-air batteries. The nanocomposite showed homogeneously dispersed Co3O4 and RuO2 nanoparticles on the surface of carbon spheres, whose shape was effective in increasing the catalytic surface area and enhancing the stability of carbon and the catalyst. A high discharge capacity, relatively stable reversibility, and low overpotential were observed in electrochemical tests of an electrode containing this carbon-sphere/Co3O4/RuO 2 nanocomposite. The results showed that the nanocomposite can be introduced as a promising catalyst in Li-air cells.",

keywords = "Air electrode, Catalyst, CoO, Composite, Li-air battery, RuO",

author = "Park, \{Chang Sung\} and Kim, \{Jae Hyun\} and Park, \{Yong Joon\}",

note = "Funding Information: Acknowledgments This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government(MEST) (NRF-2009-C1AAA001-0094219) and a basic research program (11\_EN-03) through the Daegu-Gyeongbuk Institute of Science and Technology (DGIST) funded by the Ministry of Education, Science and Technology (MEST). This work was also supported by Kyonggi University's Graduate Research Assistantship 2012.”",

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doi = "10.1007/s10832-013-9831-y",

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AU - Park, Chang Sung

AU - Kim, Jae Hyun

AU - Park, Yong Joon

N1 - Funding Information: Acknowledgments This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government(MEST) (NRF-2009-C1AAA001-0094219) and a basic research program (11_EN-03) through the Daegu-Gyeongbuk Institute of Science and Technology (DGIST) funded by the Ministry of Education, Science and Technology (MEST). This work was also supported by Kyonggi University's Graduate Research Assistantship 2012.”

PY - 2013/10

Y1 - 2013/10

N2 - A carbon-sphere/Co3O4/RuO2 nanocomposite was fabricated as part of a new approach to develop advanced Li-air batteries. The nanocomposite showed homogeneously dispersed Co3O4 and RuO2 nanoparticles on the surface of carbon spheres, whose shape was effective in increasing the catalytic surface area and enhancing the stability of carbon and the catalyst. A high discharge capacity, relatively stable reversibility, and low overpotential were observed in electrochemical tests of an electrode containing this carbon-sphere/Co3O4/RuO 2 nanocomposite. The results showed that the nanocomposite can be introduced as a promising catalyst in Li-air cells.

AB - A carbon-sphere/Co3O4/RuO2 nanocomposite was fabricated as part of a new approach to develop advanced Li-air batteries. The nanocomposite showed homogeneously dispersed Co3O4 and RuO2 nanoparticles on the surface of carbon spheres, whose shape was effective in increasing the catalytic surface area and enhancing the stability of carbon and the catalyst. A high discharge capacity, relatively stable reversibility, and low overpotential were observed in electrochemical tests of an electrode containing this carbon-sphere/Co3O4/RuO 2 nanocomposite. The results showed that the nanocomposite can be introduced as a promising catalyst in Li-air cells.

KW - Air electrode

KW - Catalyst

KW - CoO

KW - Composite

KW - Li-air battery

KW - RuO

UR - https://www.scopus.com/pages/publications/84886089790

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DO - 10.1007/s10832-013-9831-y

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SP - 224

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