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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, 54 (24). pp. 3053-3056. doi:10.1039/C7CC09957F

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Official URL: https://doi.org/10.1039/C7CC09957F

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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
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: 25 March 2018
Dates:
DateEvent
25 March 2018Published
19 February 2018Available
19 February 2018Accepted
Volume: 54
Number: 24
Page Range: pp. 3053-3056
DOI: 10.1039/C7CC09957F
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
Wolfson Research Merit Award[RS] Royal Societyhttp://dx.doi.org/10.13039/501100000288
EP/F500378/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
UNSPECIFIEDDepartment of Education and Traininghttp://dx.doi.org/10.13039/501100007912
Chancellor’s International ScholarshipUniversity of Warwickhttp://dx.doi.org/10.13039/501100000741

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