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  • Noncovalent immobilization ...
    Greenwell, Francesca; Neri, Gaia; Piercy, Verity; Cowan, Alexander J.

    Electrochimica acta, 10/2021, Volume: 392
    Journal Article

    A pyrene modified nickel cyclam catalyst (Ni(CycPy)2+ = Ni(1-(4-(pyren-1-yl)butyl)-1,4,8,11-tetraazacyclotetradecane) has been synthesised and electrochemically characterised under both CO2 and N2. The pyrene functional group forms a non-covalent interaction with carbon electrode supports and the immobilised Ni(CycPy)2+ complex remains electroactive. We report a Ni(CycPy)2+ modified gas diffusion electrode (GDE) that is tested in aqueous electrolyte and shown to be active towards CO production. This is the first successful demonstration of a nickel cyclam modified GDE in aqueous solvent and shows the potential of this class of catalysts for use in co-electrolysis devices.