Electrocatalytic performance of CuO/graphene nanocomposites for Li-O2 batteries

Da Sol Kim, Gwang Hee Lee, Seun Lee, Jae Chan Kim, Hack Jun Lee, Byung Kook Kim, Dong-Wan Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A hybrid catalyst system of a porous CuO nanowire/leaf mixture anchored onto graphene (p-CuO/G hybrid) was prepared as an oxygen-electrode electrocatalyst for lithium-oxygen (Li-O2) batteries. The p-CuO/G hybrid was prepared via the hybridization of a porous 1D/2D CuO mixture with 2D graphene. As an oxygen-electrode electrocatalyst for Li-O2 cells, the p-CuO/G hybrid exhibited high reversibility with a low voltage gap compared with a graphene electrode during 120 discharge-charge cycles under a fixed capacity regime of 1000 mA h g-1. We demonstrated the oxygen reduction and evolution kinetics of the p-CuO/G hybrid using electrochemical impedance spectroscopy.

Original languageEnglish
JournalJournal of Alloys and Compounds
DOIs
Publication statusAccepted/In press - 2016 Jul 31

Fingerprint

Graphite
Graphene
Nanocomposites
Oxygen
Electrocatalysts
Electrodes
Electrochemical impedance spectroscopy
Lithium
Nanowires
Catalysts
Kinetics
Electric potential

Keywords

  • CuO
  • Electrocatalyst
  • Graphene
  • Li-O batteries
  • Oxygen electrode

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Electrocatalytic performance of CuO/graphene nanocomposites for Li-O2 batteries. / Kim, Da Sol; Lee, Gwang Hee; Lee, Seun; Kim, Jae Chan; Lee, Hack Jun; Kim, Byung Kook; Kim, Dong-Wan.

In: Journal of Alloys and Compounds, 31.07.2016.

Research output: Contribution to journalArticle

Kim, Da Sol ; Lee, Gwang Hee ; Lee, Seun ; Kim, Jae Chan ; Lee, Hack Jun ; Kim, Byung Kook ; Kim, Dong-Wan. / Electrocatalytic performance of CuO/graphene nanocomposites for Li-O2 batteries. In: Journal of Alloys and Compounds. 2016.
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AU - Kim, Byung Kook

AU - Kim, Dong-Wan

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