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

  • Chueh Liu (a1), Changling Li (a1), Zafer Mutlu (a1), Cengiz S. Ozkan (a1) (a2) and Mihrimah Ozkan (a1) (a3)...

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.

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Corresponding author

*(Email: cliu048@ucr.edu)

References

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Keywords

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

  • Chueh Liu (a1), Changling Li (a1), Zafer Mutlu (a1), Cengiz S. Ozkan (a1) (a2) and Mihrimah Ozkan (a1) (a3)...

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