Journal article
The role of vacancies and defects in Na0.44MnO2 nanowire catalysts for lithium-oxygen batteries
Energy & environmental science, v 5(11), pp 9558-9565
01 Nov 2012
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Na0.44MnO2 nanowires were acid leached in nitric acid, and dehydrated by heat treatment to induce controllable defect formation as monitored by high resolution TEM studies. The charge-discharge tests using these materials as catalysts (or "promoters'') in rechargeable lithium-oxygen batteries (in non-carbonate electrolytes) showed that a high defect concentration results in a doubling of the reversible energy storage capacity up to 11 000 mA h g(-1), and lowered overpotentials for oxygen evolution. The role of the defects/vacancies in determining oxygen reduction behavior is highlighted.
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Details
- Title
- The role of vacancies and defects in Na0.44MnO2 nanowire catalysts for lithium-oxygen batteries
- Creators
- Jin-Hyon Lee - University of WaterlooRobert Black - University of WaterlooGuerman Popov - University of WaterlooEkaterina Pomerantseva - University of WaterlooFeihong Nan - McMaster UniversityGianluigi A. Botton - McMaster UniversityLinda F. Nazar - University of Waterloo
- Publication Details
- Energy & environmental science, v 5(11), pp 9558-9565
- Publisher
- Royal Soc Chemistry
- Number of pages
- 8
- Grant note
- Ontario Centre for Excellence NSERC; Natural Sciences and Engineering Research Council of Canada (NSERC)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000310006200041
- Scopus ID
- 2-s2.0-84867633437
- Other Identifier
- 991020785621504721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Energy & Fuels
- Engineering, Chemical
- Environmental Sciences