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In this study, we present the successful synthesis of cage-like cubic carbon catalysts enriched with pentagon structures using pentagon ring-containing C60 and a NaCl template. The number of pentagons contained in the structure was increased by doping with nitrogen and annealing, and the number of electron spins also increased, thereby improving catalytic activity. The prepared catalyst exhibits remarkable activity in ORR under acidic electrolytes. Furthermore, we elucidate the correlation between the pentagon structure, the number of spin electrons, and catalytic activity, demonstrating that enhanced activity is contingent upon the presence of spin electrons. Density functional theory (DFT) calculations support the role of spin electrons in improving activity. The concept of spin electrons and the introduction of pentagon structures provide new design principles for carbon catalysts.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: Carbon catalyst, Oxygen reduction reaction, O2 absorption, Pentagon, Spin

Date published: 2024-12-02

Publisher: Wiley

Journal:

• Angewandte Chemie International Edition (ISSN: 14337851) vol. 63 issue. 49

Funding:

• Japan Society for the Promotion of Science JP23H05459
• Japan Society for the Promotion of Science JP23H04874

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1002/anie.202410747

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Updated at: 2024-12-05 12:47:18 +0900

Published on MDR: 2024-12-05 12:47:18 +0900