A carbon-free ruthenium oxide/mesoporous titanium dioxide electrode for lithium-oxygen batteries
- Authors
- Park, Jin-Burn; Belharouak, Ilias; Lee, Yun Jung; Sun, Yang Kook
- Issue Date
- Nov-2015
- Publisher
- ELSEVIER
- Keywords
- Lithium-oxygen batteries; Titanium dioxide; Catalyst; Ruthenium dioxide; Carbon-free electrode
- Citation
- JOURNAL OF POWER SOURCES, v.295, pp.299 - 304
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 295
- Start Page
- 299
- End Page
- 304
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/24813
- DOI
- 10.1016/j.jpowsour.2015.07.030
- ISSN
- 0378-7753
- 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-O-2 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 Xray photoelectron spectroscopy. This study demonstrates the possibility of achieving high energy at the cell level, free of carbon instability.
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