TY - JOUR
T1 - Photoelectrochemical CO 2 Reduction Using a Ru(II)-Re(I) Supramolecular Photocatalyst Connected to a Vinyl Polymer on a NiO Electrode
AU - Kamata, Ryutaro
AU - Kumagai, Hiromu
AU - Yamazaki, Yasuomi
AU - Sahara, Go
AU - Ishitani, Osamu
N1 - Funding Information:
This work was supported by JST CREST Grant Number JPMJCR13L1 in “Molecular Technology,” JST Strategic International Collaborative Research Program (SICORP), and JSPS KAKENHI Grant Number JP17H06440 in Scientific Research on Innovative Areas “Innovations for Light-Energy Conversion.” H.K. thanks JSPS KAKENHI Grant Number JP16K21031 for Young Scientists (B). We thank Ookayama Materials Analysis Division, Technical Department, from Tokyo Institute of Technology for the SEM measurement and TOF-SIMS measurement.
Funding Information:
This work was supported by JST CREST Grant Number JPMJCR13L1 in Molecular Technology, JST Strategic International Collaborative Research Program (SICORP), and JSPS KAKENHI Grant Number JP17H06440 in Scientific Research on Innovative Areas Innovations for Light-Energy Conversion. H.K. thanks JSPS KAKENHI Grant Number JP16K21031 for Young Scientists (B).
Publisher Copyright:
© 2018 American Chemical Society.
PY - 2019/2/13
Y1 - 2019/2/13
N2 - 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 CO 2 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%.
AB - 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 CO 2 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%.
KW - CO reduction
KW - metal complexsemiconductor hybrid
KW - molecular photocathode
KW - photoelectrochemical cell
KW - vinyl polymer
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U2 - 10.1021/acsami.8b05495
DO - 10.1021/acsami.8b05495
M3 - Article
C2 - 29920063
AN - SCOPUS:85061556403
VL - 11
SP - 5632
EP - 5641
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 6
ER -