Zinc-air battery: Understanding the structure and morphology changes of graphene-supported CoMn2O4 Bifunctional catalysts under practical rechargeable conditions

Moni Prabu, Prakash Ramakrishnan, Hiroki Nara, Toshiyuki Momma, Tetsuya Osaka, Sangaraju Shanmugam

研究成果: Article

90 引用 (Scopus)

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Nitrogen-doped/undoped thermally reduced graphene oxide (N-rGO) decorated with CoMn2O4 (CMO) nanoparticles were synthesized using a simple one-step hydrothermal method. The activity and stability of this hybrid catalyst were evaluated by preparing air electrodes with both primary and rechargeable zinc-air batteries that consume ambient air. Further, we investigated the relationship between the physical properties and the electrochemical results for hybrid electrodes at various cycles using X-ray diffraction, scanning electron microscopy, galvanodynamic charge-discharging and electrochemical impedance spectroscopy. The structural, morphological and electrocatalytic performances confirm that CMO/N-rGO is a promising material for safe, reliable, and long-lasting air cathodes for both primary and rechargeable zinc-air batteries that consume air under ambient condition.

元の言語English
ページ(範囲)16545-16555
ページ数11
ジャーナルACS Applied Materials and Interfaces
6
発行部数19
DOI
出版物ステータスPublished - 2014 10 8

ASJC Scopus subject areas

  • Materials Science(all)

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