Photochemical hydrogen production based on the HCOOH/CO2 cycle promoted by a pentanuclear cobalt complex

Takuya Akai; Mio Kondo; Yutaka Saga; Shigeyuki Masaoka

doi:10.1039/d1cc06445b

Photochemical hydrogen production based on the HCOOH/CO₂ cycle promoted by a pentanuclear cobalt complex

Chem Commun (Camb). 2022 Mar 18;58(23):3755-3758. doi: 10.1039/d1cc06445b.

Authors

Takuya Akai¹, Mio Kondo^{1

2

3}, Yutaka Saga^{1

3}, Shigeyuki Masaoka^{1

3}

Affiliations

¹ Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. masaoka@chem.eng.osaka-u.ac.jp.
² JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.
³ Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan.

PMID: 35029619
DOI: 10.1039/d1cc06445b

Abstract

The first catalytic cycle for hydrogen production based on the photochemical two-electron reduction of carbon dioxide (CO₂) and the dehydrogenation of formic acid at ambient temperature was demonstrated using a pentanuclear cobalt complex (Co5). A series of mechanistic studies were performed to elucidate the mechanism responsible for the promotion of the photocatalytic cycle by Co5.