IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2022i1p173-d1013362.html
   My bibliography  Save this article

Evaluation of Bi-Functional Electrochemical Catalytic Activity of Co 3 O 4 -CoFe 2 O 4 Composite Spinel Oxide

Author

Listed:
  • Ji-Woo Park

    (Department of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea)

  • Young-Wan Ju

    (Department of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea
    ICT Fusion Green Energy Research Institute, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea)

Abstract

Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are important for developing energy systems such as fuel cells and metal–air batteries. Precious metal catalysts, such as Pt and IrO 2 , have been considered electrochemical catalysts because of their excellent activity for the ORR and OER. However, their disadvantages, such as low durability for long-term operation and high price, necessitate the development of alternative electrochemical catalysts. Transition metal oxides with excellent electrical conductivity, high efficiency, and stability have been considered alternative electrochemical catalysts owing to their ORR and OER activities, which are similar to those of precious metal catalysts. Therefore, in this study, composite catalyst materials comprising Co 3 O 4 and CoFe 2 O 4 spinel oxides were synthesized via hydrothermal synthesis. The synthesized composite oxides exhibit bi-functional electrochemical catalytic activity for ORR and OER owing to the large active surface area and increased number of oxygen vacancies via the nanostrain in Co 3 O 4 nanoparticles.

Suggested Citation

  • Ji-Woo Park & Young-Wan Ju, 2022. "Evaluation of Bi-Functional Electrochemical Catalytic Activity of Co 3 O 4 -CoFe 2 O 4 Composite Spinel Oxide," Energies, MDPI, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:gam:jeners:v:16:y:2022:i:1:p:173-:d:1013362
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/1/173/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/16/1/173/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Hyo-Young Kim & Young-Wan Ju, 2020. "Fabrication of Mn-N-C Catalyst for Oxygen Reduction Reactions Using Mn-Embedded Carbon Nanofiber," Energies, MDPI, vol. 13(10), pages 1-11, May.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Ji-Woo Park & Jeeyoung Shin & Young-Wan Ju, 2023. "Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts," Energies, MDPI, vol. 16(13), pages 1-11, June.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:16:y:2022:i:1:p:173-:d:1013362. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.