Daisuke Takimoto

Assistant Professor, Faculty of Science, University of the Ryukyus *Profile is at the time of the award.

2021Inamori Research GrantsBiology & Life sciences

Research topics
Synthesis of atomically thin Pt metal nanosheets and electrochemical properties
The purpose of this research is the synthesis of platinum nanosheets with atomically thin thickness for electrocatalyst toward polymer electrolyte fuel cell.


I would like to express my sincere gratitude for the support for my challenging research. We will continue to work hard to achieve my research objectives.

Outline of Research Achievments

Pt nanoparticles (~3 nm) have been widely used as the standard performance electrocatalyst for O2 reduction reactions. However, the low utilization efficiency of the Pt atoms should be improved to enhance the electrocatalytic reaction. In this study, we successfully developed Pt nanosheets with a two-atomic thickness (~0.5 nm). The Pt nanosheet shows higher ORR activity and durability than 3 nm Pt nanoparticles.

D. Takimoto et al.(2023) Platinum nanosheets synthesized via topotactic reduction of single-layer platinum oxide nanosheets for electrocatalysis. Nat. Commun. 14 19. https://doi.org/10.1038/s41467-022-35616-4


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Biology & Life sciences