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Electrocatalytic Activity of Reduced Graphene Oxide Supported Cobalt Cinnamate for Oxygen Evolution Reaction

Author

Listed:
  • Myung Jun Lee

    (Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
    These authors are contributed equally.)

  • Junyeop Kim

    (Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
    These authors are contributed equally.)

  • Jaeun Kang

    (Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea)

  • Hyewon Shin

    (Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea)

  • Junghwan Do

    (Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea)

  • Seong Jung Kwon

    (Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea)

Abstract

The stability of porous coordination polymers during an electrochemical reaction could be improved by introducing supporter materials. An I 3 O 0 -type inorganic hybrid electrocatalyst, cobalt cinnamate, supported on reduced graphene oxide (rGO) was successfully prepared for an oxygen evolution reaction. The electrocatalytic activity and stability of cobalt cinnamate(catalyst)/rGO composite were significantly improved due to the strong interaction between catalyst and supporter, which led to enhanced anchoring stability and electrical conductivity. The catalyst/rGO composite shows ~30 mV reduction in overpotential and improvement in durability from ≥35% to ≥70% after a reaction time of 12 h, compared to the catalyst alone.

Suggested Citation

  • Myung Jun Lee & Junyeop Kim & Jaeun Kang & Hyewon Shin & Junghwan Do & Seong Jung Kwon, 2021. "Electrocatalytic Activity of Reduced Graphene Oxide Supported Cobalt Cinnamate for Oxygen Evolution Reaction," Energies, MDPI, vol. 14(16), pages 1-11, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5020-:d:615228
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    References listed on IDEAS

    as
    1. Yaqoob, Lubna & Noor, Tayyaba & Iqbal, Naseem & Nasir, Habib & Sohail, Manzar & Zaman, Neelam & Usman, Muhammad, 2020. "Nanocomposites of cobalt benzene tricarboxylic acid MOF with rGO: An efficient and robust electrocatalyst for oxygen evolution reaction (OER)," Renewable Energy, Elsevier, vol. 156(C), pages 1040-1054.
    2. Wang, Yun & Chen, Ken S. & Mishler, Jeffrey & Cho, Sung Chan & Adroher, Xavier Cordobes, 2011. "A review of polymer electrolyte membrane fuel cells: Technology, applications, and needs on fundamental research," Applied Energy, Elsevier, vol. 88(4), pages 981-1007, April.
    3. Steven Chu & Arun Majumdar, 2012. "Opportunities and challenges for a sustainable energy future," Nature, Nature, vol. 488(7411), pages 294-303, August.
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