Creation of highly active and durable oxygen reduction catalysts by controlling
surface functional groups
on amorphous carbon surfaces － non-noble metal oxygen reduction catalysts applicable to fuel cells
Our group succeeded in realizing amorphous carbon oxygen reduction catalysts
that can reduce oxygen to water through hydrogen peroxide
by controlling introducing density of specific surface functional
groups (quinone and carboxy groups) including oxygen on a-C surfaces.
The a-C catalyst achieves higher activity close to that of platinum-based
catalyst and durability that exceeds those of platinum- and
graphite-based catalysts.
References
1) Kensuke Honda, Yuta Waki, Akari Matsumoto, Bunta Kondo, Yohsuke Shimai,
Diamond & Related Materials 107 (2020) 107900,
“Amorphous carbon having higher catalytic activity toward oxygen
reduction reaction: Quinone and carboxy groups introduced onto its surface”
Patent
1) JP, 2018-048368, A
[Japanese Patent Application No.] 2016-183910
[Inventor] Kensuke Honda
[Title of the invention] PRODUCTION METHOD OF AMORPHOUS CARBON,
AND AMORPHOUS CARBON
[Applicant] Yamaguchi University
[Date of filing] 21, September, 2016
