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説明:

Electrolytic synthesis of energy carriers using renewable energy and fuel cells that use energy carriers for regeneration are important technologies for achieving our carbon-neutral society. However, electrochemical reactions in electrolyte containing organic molecules significantly degrades the electrodes by catalyst poisoning (i.e. polymerization of organic molecules on the electrode surface). Such situation can easily occur through the crossover phenomenon between the anode and cathode chambers. Thus, the understanding of the electrochemical reactivity of organic molecules on electrodes becomes important for utilizing energy carriers. This study investigated the electrochemical reactivity of various organic molecules with typical functional groups to understand the reaction mechanism and the subsequent catalyst poisoning in acidic media. While −OH groups on organic molecules do not cause significant degradations on a non-noble metal high entropy alloy anode, the coexistence of −NH2 and C = O groups on organic molecules significantly degrades the anode because the generated polymers block the catalytically active sites. This knowledge will contribute to the effective design of catalysts/electrodes, and benefit the communities in electrolytic synthesis and fuel cells.

権利情報:

• Creative Commons BY-NC Attribution-NonCommercial 4.0 International
  

キーワード: Non-noble metal, high entropy alloy, oxygen evolution reaction, oxidation reaction, anode, catalyst poisoning

刊行年月日: 2026-04-24

出版者: Taylor & Francis

掲載誌:

• Science and Technology of Advanced Materials (ISSN: 14686996) vol. 27 2653417

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.6264

公開URL: https://doi.org/10.1080/14686996.2026.2653417

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更新時刻: 2026-04-27 13:14:06 +0900

MDRでの公開時刻: 2026-04-27 14:25:22 +0900