Journal
NANO RESEARCH
Volume 8, Issue 2, Pages 576-583Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-014-0689-3
Keywords
lithium-oxygen batteries; bifunctional cathode catalyst; Co3O4 nanowires; cycling stability
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Funding
- 100 Talents Programme of the Chinese Academy of Sciences
- National Program on Key Basic Research Project of China (973 Program) [2012CB215500]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [20921002]
- National Natural Science Foundation of China [21101147]
- Jilin Province Science and Technology Development Program [201215141]
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Hierarchical Co3O4 porous nanowires (NWs) have been synthesized using a hydrothermal method followed by calcination. When employed as a cathode catalyst in non-aqueous Li-oxygen batteries, the Co3O4 NWs effectively improve both the round-trip efficiency and cycling stability, which can be attributed to the high catalytic activities of Co3O4 NWs for the oxygen reduction reaction and the oxygen evolution reaction during discharge and charge processes, respectively.
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