| Literature DB >> 29920063 |
Ryutaro Kamata1, Hiromu Kumagai1, Yasuomi Yamazaki1, Go Sahara1, Osamu Ishitani1.
Abstract
A Ru(II)-Re(I) supramolecular photocatalyst and a Ru(II) redox photosensitizer were both deposited successfully on a NiO electrode by using methyl phosphonic acid anchoring groups and the electrochemical polymerization of the ligand vinyl groups of the complexes. This new molecular photocathode, poly-RuRe/NiO, adsorbed a larger amount of the metal complexes compared to one using only methyl phosphonic acid anchor groups, and the stability of the complexes on the NiO electrode were much improved. The poly-RuRe/NiO acted as a photocathode for the photocatalytic reduction of CO2 at E = -0.7 V vs Ag/AgCl under visible-light irradiation in an aqueous solution. The poly-RuRe/NiO produced approximately 2.5 times more CO, and its total Faradaic efficiency of the reduction products improved from 57 to 85%.Entities:
Keywords: CO2 reduction; metal complex−semiconductor hybrid; molecular photocathode; photoelectrochemical cell; vinyl polymer
Year: 2018 PMID: 29920063 DOI: 10.1021/acsami.8b05495
Source DB: PubMed Journal: ACS Appl Mater Interfaces ISSN: 1944-8244 Impact factor: 9.229