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Electro- and Photoinduced Interfacial Charge Transfers in Nanocrystalline Mesoporous TiO₂ and TiO₂/Iron Porphyrin Sensitized Films under CO₂ Reduction Catalysis.

ABSTRACT: Electro- and photochemical CO₂ reduction (CO₂R) is the quintessence of modern-day sustainable research. We report our studies on the electro- and photoinduced interfacial charge transfer occurring in a nanocrystalline mesoporous TiO₂ film and two TiO₂/iron porphyrin hybrid films (meso-aryl- and β-pyrrole-substituted porphyrins, respectively) under CO₂R conditions. We used transient absorption spectroscopy (TAS) to demonstrate that, under 355 nm laser excitation and an applied voltage bias (0 to -0.8 V vs Ag/AgCl), the TiO₂ film exhibited a diminution in the transient absorption (at -0.5 V by 35%), as well as a reduction of the lifetime of the photogenerated electrons (at -0.5

SUBMITTER: Domingo-Tafalla B

PROVIDER: S-EPMC10037241 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature

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Electro- and Photoinduced Interfacial Charge Transfers in Nanocrystalline Mesoporous TiO₂ and TiO₂/Iron Porphyrin Sensitized Films under CO₂ Reduction Catalysis.

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Electro- and Photoinduced Interfacial Charge Transfers in Nanocrystalline Mesoporous TiO2 and TiO2/Iron Porphyrin Sensitized Films under CO2 Reduction Catalysis.

OmicsDI is part of the ELIXIR infrastructure

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Electro- and Photoinduced Interfacial Charge Transfers in Nanocrystalline Mesoporous TiO₂ and TiO₂/Iron Porphyrin Sensitized Films under CO₂ Reduction Catalysis.