Rechargeable zinc-air battery with bifunctional electrocatalyst of copper oxide and graphene nanoplatelets

• DOI: 10.1016/j.elecom.2024.107760
• Publication Date: 2024-05-20T15:39:22Z
• Authors: Barbara A.C. Sá; Tatiana S. Andrade; Rafael R. de Souza; Antero R. Santos ...; Mariandry Rodriguez; Francisco G.E. No...; Márcio C. Pereira
• Keywords: ORR; Redox Flow Batteries; Electrode; Materials Science; Bifunctional oxygen electrocatalysts; Metal-air batteries; Organic chemistry; Quantum mechanics; Catalysis; Engineering; Materials for Electrochemical Supercapacitors; Secondary zinc-air batteries; FOS: Electrical engineering, electronic engineering, information engineering; Electrochemistry; Aqueous Zinc-Ion Batteries; Nanotechnology; Electrical and Electronic Engineering; Zn-air batteries; QD1-999; Bifunctional; Battery (electricity); Rechargeable Batteries; Aqueous Zinc-Ion Battery Technology; FOS: Nanotechnology; Energy; Renewable Energy, Sustainability and the Environment; Physics; Oxide; Electrocatalyst; Power (physics); Materials science; TP250-261; Electronic, Optical and Magnetic Materials; Zinc; Chemistry; Industrial electrochemistry; Physical chemistry; Physical Sciences; Metallurgy; OER; Electrocatalysis for Energy Conversion; Metal Ion Batteries; Zinc Anode; Graphene; Copper; Inorganic chemistry

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 reduction (ORR) is crucial their advancement. This work investigates synthesized composed of graphene-Cu2O deposited on carbon cloth by doctor blading casting method bifunctional electrodes in a rechargeable Zn-air battery. The battery integrated with air-cathode electrocatalyst showed superior performance terms cycling stability compared to without Cu2O. enhanced attributed reversibility Cu+/Cu2+ species during redox reactions facilitated high electrical conductivity graphene. Therefore, results suggest potential advancing development batteries.