Interfacial charge separation in Cu2O/RuOx as a visible light driven CO2 reduction catalyst

Ernest Pastor, Federico M. Pesci, Anna Reynal, Albertus D. Handoko, Mingjia Guo, Xiaoqiang An, Alexander J. Cowan, David R. Klug, James R. Durrant, Junwang Tang

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    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. This journal is

    Original languageEnglish
    Pages (from-to)5922-5926
    Number of pages5
    JournalPhysical Chemistry Chemical Physics
    Volume16
    Issue number13
    DOIs
    Publication statusPublished - 7 Apr 2014

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    Pastor, E., Pesci, F. M., Reynal, A., Handoko, A. D., Guo, M., An, X., Cowan, A. J., Klug, D. R., Durrant, J. R., & Tang, J. (2014). Interfacial charge separation in Cu2O/RuOx as a visible light driven CO2 reduction catalyst. Physical Chemistry Chemical Physics, 16(13), 5922-5926. https://doi.org/10.1039/c4cp00102h