A diketopyrrolopyrrole dye-based dyad on a porous TiO₂ photoanode for solar-driven water oxidation.

ABSTRACT: Dye-sensitised photoanodes modified with a water oxidation catalyst allow for solar-driven O₂ evolution in photoelectrochemical cells. However, organic chromophores are generally considered unsuitable to drive the thermodynamically demanding water oxidation reaction, mainly due to their lack of stability upon photoexcitation. Here, the synthesis of a dyad photocatalyst (DPP-Ru) consisting of a diketopyrrolopyrrole chromophore (DPPdye) and ruthenium-based water oxidation catalyst (RuWOC) is described. The DPP-Ru dyad features a cyanoacrylic acid anchoring group for immobilisation on metal oxides, strong absorption in the visible region of the electromagnetic spectrum, and photoinduced hole transfer from the dye to the catalyst unit. Immobilisation of t

SUBMITTER: Anton-Garcia D 

PROVIDER: S-EPMC8163027 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature