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

Autor: Materna KL; Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden., Lalaoui N; Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden., Laureanti JA; Pacific Northwest National Laboratory , P.O. Box 999, Richland , Washington 99352 , United States., Walsh AP; Ferro Corporation , Penn Yan , New York 14527 , United States., Rimgard BP; Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden., Lomoth R; Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden., Thapper A; Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden., Ott S; Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden., Shaw WJ; Pacific Northwest National Laboratory , P.O. Box 999, Richland , Washington 99352 , United States., Tian H; Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden., Hammarström L; Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden.
Jazyk: angličtina
Zdroj: ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2020 Jan 29; Vol. 12 (4), pp. 4501-4509. Date of Electronic Publication: 2020 Jan 13.
DOI: 10.1021/acsami.9b19003
Abstrakt: 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.
Databáze: MEDLINE
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