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Article Dans Une Revue ACS Applied Materials & Interfaces Année : 2020

Using Surface Amide Couplings to Assemble Photocathodes for Solar Fuel Production Applications

Résumé

A facile surface amide-coupling method was examined to attach dye and catalyst molecules to silatrane-decorated NiO electrodes. Using this method, electrodes with a push–pull dye were assembled and characterized by photoelectrochemistry and transient absorption spectroscopy. The dye-sensitized electrodes exhibited hole injection into NiO and good photoelectrochemical stability in water, highlighting the stability of the silatrane anchoring group and the amide linkage. The amide-coupling protocol was further applied to electrodes that contain a molecular proton reduction catalyst for use in photocathode architectures. Evidence for catalyst reduction was observed during photoelectrochemical measurements and via femtosecond-transient absorption spectroscopy demonstrating the possibility for application in photocathodes.
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Dates et versions

hal-02485807 , version 1 (25-11-2020)

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Kelly Materna, Noémie Lalaoui, Joseph Laureanti, Aaron Walsh, Belinda Pettersson Rimgard, et al.. Using Surface Amide Couplings to Assemble Photocathodes for Solar Fuel Production Applications. ACS Applied Materials & Interfaces, 2020, 12 (4), pp.4501-4509. ⟨10.1021/acsami.9b19003⟩. ⟨hal-02485807⟩
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