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High resolution visualization of the redox activity of Li2O2 in non-aqueous media : conformal layer vs. toroid structure
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E, Sharel P., Kang, Minkyung, Wilson, Paul, Meng, Lingcong, Perry, David, Basile, Andrew and Unwin, Patrick R. (2018) High resolution visualization of the redox activity of Li2O2 in non-aqueous media : conformal layer vs. toroid structure. Chemical Communications . doi:10.1039/C7CC09957F (In Press)
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Official URL: https://doi.org/10.1039/C7CC09957F
Abstract
A strong relationship between the surface structure and the redox activity of Li2O2 is visualized directly using scanning electrochemical cell microscopy, employing a dual-barrel nanopipette containing a unique gel polymer electrolyte. These measurements reveal considerable local heterogeneity with significantly enhanced electrochemical activity at toroidal Li2O2 structures when compared to the conformal layer that is usually formed on the cathode of Li–O2 batteries.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QD Chemistry | |||||||||||||||
| Divisions: | Faculty of Science > Chemistry | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Lithium cells, Lithium compounds, Oxidation-reduction reaction, Surface chemistry, Scanning electrochemical microscopy | |||||||||||||||
| Journal or Publication Title: | Chemical Communications | |||||||||||||||
| Publisher: | Royal Society of Chemistry | |||||||||||||||
| ISSN: | 1359-7345 | |||||||||||||||
| Official Date: | 19 February 2018 | |||||||||||||||
| Dates: |
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| Date of first compliant deposit: | 8 October 2018 | |||||||||||||||
| DOI: | 10.1039/C7CC09957F | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | In Press | |||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
| RIOXX Funder/Project Grant: |
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