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

A facile surface amide-coupling method was examined to attach dye and catalyst mols. to silatrane-decorated NiO electrodes. Using this method, electrodes with a push-pull dye were assembled and characterized by photoelectrochem. and transient absorption spectroscopy. The dye-sensitized electrodes exhibited hole injection into NiO and good photoelectrochem. 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 mol. proton reduction catalyst for use in photocathode architectures. Evidence for catalyst reduction was observed during photoelectrochem. measurements and via femtosecond-transient absorption spectroscopy demonstrating the possibility for application in photocathodes.

Références

Titre
Using Surface Amide Couplings to Assemble Photocathodes for Solar Fuel Production Applications
Type de publication
Article de revue
Année de publication
2020
Revue
ACS Applied Materials & Interfaces
Volume
12
Pagination
4501–4509
ISSN
1944-8252
Soumis le 8 septembre 2022