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  • Sá, Barbara A.C., et al. (author)
  • Rechargeable zinc-air battery with bifunctional electrocatalyst of copper oxide and graphene nanoplatelets
  • 2024
  • In: Electrochemistry Communications. - 1388-2481. ; 165
  • Journal article (peer-reviewed)abstract
    • Rechargeable zinc-air batteries have been identified as promising technologies for energy storage. However, developing cost-effective electrocatalysts that can efficiently facilitate the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is crucial for their advancement. This work investigates synthesized electrocatalysts composed of graphene-Cu2O deposited on carbon cloth by doctor blading casting method as bifunctional electrodes in a rechargeable Zn-air battery. The battery integrated with graphene-Cu2O as the air-cathode electrocatalyst showed superior performance in terms of cycling stability compared to that without Cu2O. This enhanced performance is attributed to the reversibility of Cu+/Cu2+ species during the redox reactions facilitated by the high electrical conductivity of graphene. Therefore, the results suggest the potential of the synthesized electrodes for advancing the development of rechargeable Zn-air batteries.
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