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Silver Decorated Reduced Graphene Oxide as Electrocatalyst for Zinc–Air Batteries

Author

Listed:
  • Laksanaporn Poolnapol

    (Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand)

  • Wathanyu Kao-ian

    (Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand)

  • Anongnat Somwangthanaroj

    (Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand)

  • Falko Mahlendorf

    (Department of Energy Technology, University Duisburg-Essen, 47057 Duisburg, Germany)

  • Mai Thanh Nguyen

    (Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628, Japan)

  • Tetsu Yonezawa

    (Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628, Japan
    Institute of Business-Regional Collaborations, Hokkaido University, Hokkaido 001-0021, Japan)

  • Soorathep Kheawhom

    (Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
    Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628, Japan
    Research Unit of Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok 10330, Thailand)

Abstract

Due to their low cost and very high energy density, zinc–air batteries (ZABs) exhibit high potential for various energy applications. The electrochemical performance of the air-cathode has a decisive impact on the discharge performance of ZABs because the sluggish oxygen reduction reaction (ORR) kinetics increase the overpotential of the air-cathode and hence the performance of ZABs. In this work, reduced graphene oxide decorated with silver nanoparticles (AgNP/rGO) is synthesized using simultaneous reduction of graphene oxide and silver ions. Different amounts of silver loading are examined for the synthesis of AgNP/rGO. The synthesized AgNP/rGO samples are analyzed using a rotating disk electrode in order to investigate ORR activity. Then, the synthesized AgNP/rGO electrocatalyst is applied on a tubular designed zinc–air battery in order to study the performance of the zinc–air battery. Results demonstrate that AgNP/rGO is an efficient and cost-effective ORR electrocatalyst for its practical application in ZABs.

Suggested Citation

  • Laksanaporn Poolnapol & Wathanyu Kao-ian & Anongnat Somwangthanaroj & Falko Mahlendorf & Mai Thanh Nguyen & Tetsu Yonezawa & Soorathep Kheawhom, 2020. "Silver Decorated Reduced Graphene Oxide as Electrocatalyst for Zinc–Air Batteries," Energies, MDPI, vol. 13(2), pages 1-13, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:2:p:462-:d:310050
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    References listed on IDEAS

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    1. Sanneke Kloppenburg & Robin Smale & Nick Verkade, 2019. "Technologies of Engagement: How Battery Storage Technologies Shape Householder Participation in Energy Transitions," Energies, MDPI, vol. 12(22), pages 1-15, November.
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