Insights into the mechanism and aging of a noble-metal free H₂-evolving dye-sensitized photocathode.

ABSTRACT: Dye-sensitized photo-electrochemical cells (DS-PECs) form an emerging technology for the large-scale storage of solar energy in the form of (solar) fuels because of the low cost and ease of processing of their constitutive photoelectrode materials. Preparing such molecular photocathodes requires a well-controlled co-immobilization of molecular dyes and catalysts onto transparent semiconducting materials. Here we used a series of surface analysis techniques to describe the molecular assembly of a push-pull organic dye and a cobalt diimine-dioxime catalyst co-grafted on a p-type NiO electrode substrate. (Photo)electrochemical measurements allowed characterization of electron transfer processes within such an assembly and to demonstrate for the first time that a Co^I species is form

SUBMITTER: Kaeffer N 

PROVIDER: S-EPMC6115630 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature