Roy, Souvik, Ángeles, Navarro, Sain, Sunanda , Wünschek, Maximilian, Pichler, Christian, Salguero, Francisco José Romero and Esquivel, Dolores (2023) Solar driven CO2 reduction with a molecularly engineered periodic mesoporous organosilica containing cobalt phthalocyanine. Nanoscale . ISSN 2040-3364
Full content URL: https://pubs.rsc.org/en/content/articlelanding/202...
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| Item Type: | Article |
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| Item Status: | Live Archive |
Abstract
A molecular cobalt phthalocyanine (CoPc) catalyst has been integrated in an ethylene-bridged periodic mesoporous organosilica (PMO) to fabricate a hybrid material, CoPc-PMO, that catalyses CO2 reduction to CO in a photocatalytic system using [Ru(bpy)3]2+ (bpy = 2,2′-bipyridine) as a photosensitizer and 1,3-dimethyl-2-phenyl-2,3-dihydro-1Hbenzo[d]imidazole (BIH) as an electron donor. CoPc-PMO displays a Co-based turnover number (TONCO) of >6000 for CO evolution with >70% CO-selectivity after 4 h irradiation with UV-filtered simulated solar light, and a quantum yield of 1.95% at 467 nm towards CO. This system demonstrates a benchmark TONCO for immobilised CoPc-based catalysts towards visible light-driven CO¬2 reduction.
| Keywords: | Photocatalysis, CO2 reduction, mesoporous materials, molecular catalysts |
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| Subjects: | F Physical Sciences > F120 Inorganic Chemistry F Physical Sciences > F100 Chemistry |
| Divisions: | College of Science > School of Chemistry |
| ID Code: | 53086 |
| Deposited On: | 17 Jan 2023 16:03 |
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