Hybrid photocatalyst constructed using polymerized metal complexes and semiconductor powders for photocatalytic carbon dioxide reduction

Author:

Yamazaki Yasuomi12ORCID,Maruyama Riku1,Kumagai Hiromu3ORCID,Maeda Kazuhiko4ORCID,Tsubomura Taro1ORCID

Affiliation:

1. Department of Materials and Life Science, Seikei University , 3-3-1, Kichijoji-Kitamachi, Musashino, Tokyo 180-8633 , Japan

2. Department of Applied Chemistry, School of Engineering, The University of Tokyo Present address: , 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 , Japan

3. Research Center for Advanced Science and Technology, The University of Tokyo , 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904 , Japan

4. Department of Chemistry, School of Science, Tokyo Institute of Technology , 2-12-1-NE-2, Ookayama, Meguro-ku, Tokyo 152-8551 , Japan

Abstract

Abstract Hybrid photocatalysts prepared by the adsorption of metal complexes on semiconductors via anchoring groups are among notable photocatalysts for selective CO2 reduction using abundant electron donors. However, their photocatalytic activities are limited by their low adsorption amounts and strength. In this study, we demonstrate the reductive polymerization of vinyl groups in metal complexes triggered by excited electrons on semiconductors as a new immobilization method. This approach significantly enhanced the adsorption amount and durability, thus increasing the photocatalytic performance.

Funder

ENEOS Hydrogen Trust Fund

JSPS

Seikei University

Publisher

Oxford University Press (OUP)

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