4.6 Article

Cobalt sulfide nanoparticles impregnated nitrogen and sulfur co-doped graphene as bifunctional catalyst for rechargeable Zn-air batteries

Journal

RSC ADVANCES
Volume 5, Issue 10, Pages 7280-7284

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra13404d

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Funding

  1. SERC Advanced Energy Storage Research Programme [IMRE/12-2P0504]
  2. Institute of Material Research and Engineering (IMRE), A*STAR, Singapore

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We report cobalt sulfide nanoparticles decorated nitrogen and sulfur co-doped graphene nanosheets as an effective bifunctional oxygen catalyst. Its oxygen evolution reaction (OER) catalytic activity outperforms Pt/C, giving a current density of 38.19 mA cm(-2) at 1.0 V. Zn-air batteries using this material on air-cathode show high stability and good rechargeability.

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