Rechargeable zinc-air battery with bifunctional electrocatalyst of copper oxide and graphene nanoplatelets
Journal article, 2024

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.

OER

Metal-air batteries

Bifunctional oxygen electrocatalysts

Secondary zinc-air batteries

Zn-air batteries

ORR

Author

Barbara A.C. Sá

Federal University of Jequitinhonha and Mucuri Valleys (UFVJM)

Tatiana Santos Andrade

Chalmers, Electrical Engineering, Electric Power Engineering

Rafael R. de Souza

Federal University of Jequitinhonha and Mucuri Valleys (UFVJM)

Antero R. Santos Neto

Federal University of Jequitinhonha and Mucuri Valleys (UFVJM)

Mariandry Rodriguez

Federal University of Jequitinhonha and Mucuri Valleys (UFVJM)

Francisco G.E. Nogueira

Federal University of São Carlos

Márcio C. Pereira

Federal University of Jequitinhonha and Mucuri Valleys (UFVJM)

Electrochemistry Communications

1388-2481 (ISSN)

Vol. 165 107760

Driving Forces

Sustainable development

Subject Categories

Materials Chemistry

Other Chemical Engineering

Other Chemistry Topics

DOI

10.1016/j.elecom.2024.107760

More information

Latest update

6/11/2024