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Highly reversible oxygen to superoxide redox reaction in a sodium-containing ionic liquid

Pozo-Gonzalo, Cristina, Howlett, Patrick C., MacFarlane, Douglas R. and Forsyth, Maria 2017, Highly reversible oxygen to superoxide redox reaction in a sodium-containing ionic liquid, Electrochemistry communications, vol. 74, pp. 14-18, doi: 10.1016/j.elecom.2016.11.010.

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Title Highly reversible oxygen to superoxide redox reaction in a sodium-containing ionic liquid
Author(s) Pozo-Gonzalo, Cristina
Howlett, Patrick C.ORCID iD for Howlett, Patrick C. orcid.org/0000-0002-2151-2932
MacFarlane, Douglas R.
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
Journal name Electrochemistry communications
Volume number 74
Start page 14
End page 18
Total pages 5
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2017-01
ISSN 1388-2481
Keyword(s) ionic liquid
oxygen reduction reaction
sodium-air batteries
TFSI
FSI
Science & Technology
Physical Sciences
Electrochemistry
Pyrrolidinium
Summary Comprehensive studies regarding the impact of the electrolyte composition on the oxygen reduction mechanism are important to deliver highly efficient rechargeable sodium–air batteries. Thus, we report, for the first time, the oxygen reduction mechanisms and discharge products in a pyrrolidinium-based ionic liquid in the presence of different Na+ ion concentrations. Upon increasing the Na+ salt concentration, oxygen reduction becomes more efficient (e.g. 74%) and the onset potential of the reduction process shifts to a more positive value due to superior solvation of the superoxide anion by Na+. These observations should provide a platform of potential electrolytes for Na–air batteries.
Language eng
DOI 10.1016/j.elecom.2016.11.010
Field of Research 091205 Functional Materials
030604 Electrochemistry
03 Chemical Sciences
09 Engineering
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID FL110100013
CE140100012
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30090165

Document type: Journal Article
Collection: Institute for Frontier Materials
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