title: Interfacial charge separation in Cu2O/RuO(x) as a visible light driven CO2 reduction catalyst.
abstract: We employ transient absorption spectroscopy to record the absorption spectrum of photogenerated charge carriers in Cu2O. We have found that CO2 reduction in Cu2O is limited by fast electron-hole recombination. The deposition of RuOx nanoparticles on Cu2O results in a twofold increased yield of long-lived electrons, indicating partially reduced electron-hole recombination losses. This observation correlates with an approximately sixfold increase in the yield of CO2 reduction to CO.
authors.affiliation: Department of Chemistry, Imperial College London, Exhibition Road, SW7 2AZ, London, UK. a.reynal@imperial.ac.uk.
authors.forename: Ernest
authors.initials: E
authors.lastname: Pastor
authors.forename: Federico M
authors.initials: FM
authors.lastname: Pesci
authors.forename: Anna
authors.initials: A
authors.lastname: Reynal
authors.forename: Albertus D
authors.initials: AD
authors.lastname: Handoko
authors.forename: Mingjia
authors.initials: M
authors.lastname: Guo
authors.forename: Xiaoqiang
authors.initials: X
authors.lastname: An
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Cowan
authors.forename: David R
authors.initials: DR
authors.lastname: Klug
authors.forename: James R
authors.initials: JR
authors.lastname: Durrant
authors.forename: Junwang
authors.initials: J
authors.lastname: Tang