In:
Catalysis Science & Technology, Royal Society of Chemistry (RSC), Vol. 13, No. 13 ( 2023), p. 3940-3945
Abstract:
The combination of the homogeneous iron catalyst (2,4-bis(trimethylsilyl)bicyclo[4.3.0]nona-1,4-dien-3-one)iron tricarbonyl and the copper based photosensitizer [Cu(2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline-5,6-disulfonate-disodium)(xantphos)] PF 6 ( PS 1 ) supported on TiO 2 (Hombikat) allows for the reduction of carbon dioxide to carbon monoxide in the presence of 1,3-dimethyl-2-phenyl-2,3-dihydro-1 H -benzimidazole (BIH) as the sacrificial electron donor. The application of the titania supported PS 1 resulted in a more than doubled productivity compared to the fully homogeneous system. Applying the composite material with highest copper loading ( C 4 ) improved the catalyst turnover numbers for the iron catalyst up to 866 (TON CO (Fe)). Quantum yields up to 9.5% at 415 nm and 0.07 W cm −1 were achieved. The composite materials Cu-PS@TiO 2 were investigated by STEM, UV/vis and time-resolved emission spectroscopy, and cyclic voltammetry as well as differential pulse voltammetry.
Type of Medium:
Online Resource
ISSN:
2044-4753
,
2044-4761
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2595090-3
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