α-MnO₂ Nanowire Catalysts with Ultra-High Capacity and Extremely Low Overpotential in Lithium-Air Batteries through Tailored Surface Arrangement

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dc.contributor.authorSong, K.en_US
dc.contributor.authorJung, J.en_US
dc.contributor.authorHeo, Y. -Uen_US
dc.contributor.authorLee, Y. C.en_US
dc.contributor.authorCho, Kyeongjaeen_US
dc.contributor.authorKang, Y. -Men_US
dc.date.accessioned2014-08-22T22:50:45Z
dc.date.available2014-08-22T22:50:45Z
dc.date.created2013-10-11
dc.description.abstractWe here report on very high capacity (11000 mA h g⁻¹), superb rate capability (4500 mA h g⁻¹ at 5000 mA g⁻¹) and high reversibility of Li-air batteries using α-MnO₂ NW catalysts mainly associated with their relatively large amount of Mn³⁺ exposed on the NW surface and a unique mechanism for deposition of discharge products. Our findings of the unprecedentedly fast Li-ion transport and reversible formation-decomposition of discharge products attributed to the modified surface arrangement of α-MnO₂ NWs suggest a strategy for achieving high-power Li-air batteries in combination with nano-architecture tailoring.en_US
dc.description.sponsorship"This research was supported by POSCO-RIST research program (2012K110) and by the NRF of Korea through WCU program (GrantNo.R-31-10083-0)."en_US
dc.identifier.citationSong, K., J. Jung, Y. -U Heo, Y. C. Lee, et al. 2013. "α-MnO₂ nanowire catalysts with ultra-high capacity and extremely low overpotential in lithium-air batteries through tailored surface arrangement." 15(46): 20075-20079en_US
dc.identifier.issn14639076en_US
dc.identifier.issue46en_US
dc.identifier.startpage20075en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3919
dc.identifier.volume15en_US
dc.language.isoenen_US
dc.relation.urihttp://dx.doi.org/10.1039/c3cp53754den_US
dc.rights©2013 The Owner Societies.en_US
dc.source.journalPhysical Chemistry Chemical Physicsen_US
dc.subjectManganese oxidesen_US
dc.subjectLithium-air batteriesen_US
dc.subjectLithium peroxideen_US
dc.titleα-MnO₂ Nanowire Catalysts with Ultra-High Capacity and Extremely Low Overpotential in Lithium-Air Batteries through Tailored Surface Arrangementen_US
dc.title.alternativePhysical Chemistry Chemical Physicsen_US
dc.type.genrearticleen_US

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