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Graphene/Ni Wire Foam with Multivalent Manganese Oxide Catalysts for Li-O2 Battery Cathode

Published online by Cambridge University Press:  23 June 2017

Chueh Liu ,
Changling Li ,
Zafer Mutlu ,
Cengiz S. Ozkan  and
Mihrimah Ozkan
Chueh Liu*
Affiliation:
Materials Science and Engineering Program, University of California, Riverside, CA, USA.
Changling Li
Affiliation:
Materials Science and Engineering Program, University of California, Riverside, CA, USA.
Zafer Mutlu
Affiliation:
Materials Science and Engineering Program, University of California, Riverside, CA, USA.
Cengiz S. Ozkan
Affiliation:
Materials Science and Engineering Program, University of California, Riverside, CA, USA. Department of Mechanical Engineering, University of California, Riverside, CA, USA.
Mihrimah Ozkan
Affiliation:
Materials Science and Engineering Program, University of California, Riverside, CA, USA. Department of Electrical Engineering, University of California, Riverside, CA, USA.
*
*(Email: [email protected])
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Abstract

Herein, commercial Ni foam coated with self-assembled and linearly-aligned Ni wires is utilized as a cost-effective current collector for application in Li-O2 battery. The Ni wires are furthered deposited with graphene layers (g-Ni wire) to improve electrical conductivity. Multivalent Mn oxides consisting of Mn3O4, Mn2O3 and MnCO3 are used as effective oxygen reduction (ORR) and evolution reaction (OER) catalysts deposited on g-Ni wire current collectors. Specific capacities are respective ∼100 and ∼170 mAh g-1 without or with O2 introduction into the cell. The relative facile synthesis process requiring merely solution-based synthesis at ambient pressure, low temperature and short process time renders the Mn oxides/g-Ni wire electrode promising for Li-O2 battery application.

Keywords

nanoscaleoxidechemical synthesis
Type
Articles
Information
MRS Advances , Volume 2 , Issue 55: Energy Storage and Conversion , 2017 , pp. 3403 - 3407
Copyright
Copyright © Materials Research Society 2017 

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References

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