A carbon-free ruthenium oxide/mesoporous titanium dioxide electrode for lithium-oxygen batteries

Jin Bum Park; Ilias Belharouak; Yun Jung Lee; Yang Kook Sun

doi:10.1016/j.jpowsour.2015.07.030

A carbon-free ruthenium oxide/mesoporous titanium dioxide electrode for lithium-oxygen batteries

Jin Bum Park, Ilias Belharouak, Yun Jung Lee, Yang Kook Sun

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

31 Scopus citations

Abstract

Mesoporous TiO₂ with well-distributed RuO₂ catalysts is considered in this paper as a carbon-free cathode material replacement. Benefiting from the highly-porous TiO₂ support structure and high catalytic activity of RuO₂, the Li-O₂ cells with composite RuO₂/mesoporous TiO₂ cathodes show low charge potentials with a high cell capacity. The stability of the TiO₂ materials was verified by investigating stable cell performance as well as through structural and chemical characterization via X-ray diffraction and X-ray photoelectron spectroscopy. This study demonstrates the possibility of achieving high energy at the cell level, free of carbon instability.

Original language	English
Pages (from-to)	299-304
Number of pages	6
Journal	Journal of Power Sources
Volume	295
DOIs	https://doi.org/10.1016/j.jpowsour.2015.07.030
State	Published - Jul 20 2015
Externally published	Yes

Funding

This work was supported by the Human Resources Development program (No. 20124010203310 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy and also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2014R1A2A1A13050479 ).

Keywords

Carbon-free electrode
Catalyst
Lithium-oxygen batteries
Ruthenium dioxide
Titanium dioxide

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10.1016/j.jpowsour.2015.07.030

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title = "A carbon-free ruthenium oxide/mesoporous titanium dioxide electrode for lithium-oxygen batteries",

abstract = "Mesoporous TiO2 with well-distributed RuO2 catalysts is considered in this paper as a carbon-free cathode material replacement. Benefiting from the highly-porous TiO2 support structure and high catalytic activity of RuO2, the Li-O2 cells with composite RuO2/mesoporous TiO2 cathodes show low charge potentials with a high cell capacity. The stability of the TiO2 materials was verified by investigating stable cell performance as well as through structural and chemical characterization via X-ray diffraction and X-ray photoelectron spectroscopy. This study demonstrates the possibility of achieving high energy at the cell level, free of carbon instability.",

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AU - Park, Jin Bum

AU - Belharouak, Ilias

AU - Lee, Yun Jung

AU - Sun, Yang Kook

PY - 2015/7/20

Y1 - 2015/7/20

N2 - Mesoporous TiO2 with well-distributed RuO2 catalysts is considered in this paper as a carbon-free cathode material replacement. Benefiting from the highly-porous TiO2 support structure and high catalytic activity of RuO2, the Li-O2 cells with composite RuO2/mesoporous TiO2 cathodes show low charge potentials with a high cell capacity. The stability of the TiO2 materials was verified by investigating stable cell performance as well as through structural and chemical characterization via X-ray diffraction and X-ray photoelectron spectroscopy. This study demonstrates the possibility of achieving high energy at the cell level, free of carbon instability.

AB - Mesoporous TiO2 with well-distributed RuO2 catalysts is considered in this paper as a carbon-free cathode material replacement. Benefiting from the highly-porous TiO2 support structure and high catalytic activity of RuO2, the Li-O2 cells with composite RuO2/mesoporous TiO2 cathodes show low charge potentials with a high cell capacity. The stability of the TiO2 materials was verified by investigating stable cell performance as well as through structural and chemical characterization via X-ray diffraction and X-ray photoelectron spectroscopy. This study demonstrates the possibility of achieving high energy at the cell level, free of carbon instability.

KW - Carbon-free electrode

KW - Catalyst

KW - Lithium-oxygen batteries

KW - Ruthenium dioxide

KW - Titanium dioxide

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JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

A carbon-free ruthenium oxide/mesoporous titanium dioxide electrode for lithium-oxygen batteries

Abstract

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Keywords

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