共 50 条
Photoelectrochemical CO2 Reduction Using a Ru(II)-Re(I) Supramolecular Photocatalyst Connected to a Vinyl Polymer on a NiO Electrode
被引:67
作者:
Kamata, Ryutaro
[1
]
Kumagai, Hiromu
[1
]
Yamazaki, Yasuomi
[1
,2
]
Sahara, Go
[1
]
Ishitani, Osamu
[1
]
机构:
[1] Tokyo Inst Technol, Sch Sci, Dept Chem, O Okayama 2-12-1 NE-1, Tokyo 1528550, Japan
[2] Seikei Univ, Dept Mat & Life Sci, Fac Sci & Technol, 3-1 Kichijoji Kitamachi, Musashino, Tokyo 1808633, Japan
关键词:
CO2;
reduction;
molecular photocathode;
photoelectrochemical cell;
metal complex-semiconductor hybrid;
vinyl polymer;
BINUCLEAR RUTHENIUM(II) COMPLEX;
WATER OXIDATION;
VISIBLE-LIGHT;
ELECTROCATALYTIC REDUCTION;
ELECTROPOLYMERIZED FILMS;
RHENIUM(I) COMPLEXES;
MOLECULAR CATALYSTS;
HYDROGEN EVOLUTION;
AQUEOUS-MEDIA;
METAL-COMPLEX;
D O I:
10.1021/acsami.8b05495
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
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, polyRuRe/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%.
引用
收藏
页码:5632 / 5641
页数:10
相关论文