Charge accumulation kinetics in multi-redox molecular catalysts immobilised on TiO₂.

ABSTRACT: Multi-redox catalysis requires the accumulation of more than one charge carrier and is crucial for solar energy conversion into fuels and valuable chemicals. In photo(electro)chemical systems, however, the necessary accumulation of multiple, long-lived charges is challenged by recombination with their counterparts. Herein, we investigate charge accumulation in two model multi-redox molecular catalysts for proton and CO₂ reduction attached onto mesoporous TiO₂ electrodes. Transient absorption spectroscopy and spectroelectrochemical techniques have been employed to study the kinetics of photoinduced electron transfer from the TiO₂ to the molecular catalysts in acetonitrile, with triethanolamine as the hole scavenger. At high light intensities, we detect charg

SUBMITTER: Bozal-Ginesta C 

PROVIDER: S-EPMC8178996 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature