A functionalised nickel cyclam catalyst for CO2 reduction: Electrocatalysis, semiconductor surface immobilisation and light-driven electron transfer

Gaia Neri, James J. Walsh, Calum Wilson, Anna Reynal, Jason Y.C. Lim, Xiaoe Li, Andrew J.P. White, Nicholas J. Long, James R. Durrant, Alexander J. Cowan

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    Abstract

    The immobilisation of electrocatalysts for CO2 reduction onto light harvesting semiconductors is proposed to be an important step towards developing more efficient CO2 reduction photoelectrodes. Here, we report a low cost nickel cyclam complex covalently anchored to a metal oxide surface. Using transient spectroscopy we validate the role of surface immobilisation on enhancing the rate of photoelectron transfer. Furthermore [Ni(1,4,8,11-tetraazacyclo-tetradecane-6-carboxylic acid)]2+ (2) is shown to be a very active electrocatalyst in solution.

    Original languageEnglish
    Pages (from-to)1562-1566
    Number of pages5
    JournalPhysical Chemistry Chemical Physics
    Volume17
    Issue number3
    DOIs
    Publication statusPublished - 21 Jan 2015

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    Neri, G., Walsh, J. J., Wilson, C., Reynal, A., Lim, J. Y. C., Li, X., White, A. J. P., Long, N. J., Durrant, J. R., & Cowan, A. J. (2015). A functionalised nickel cyclam catalyst for CO2 reduction: Electrocatalysis, semiconductor surface immobilisation and light-driven electron transfer. Physical Chemistry Chemical Physics, 17(3), 1562-1566. https://doi.org/10.1039/c4cp04871g