Molecular Copper(I)-Sensitized Photoanodes for Alcohol Oxidation under Ambient Conditions.
Joseph F Ricardo-NoordbergSaeid KamalMarek B MajewskiPublished in: ChemSusChem (2024)
Dye-sensitized photoelectrochemical cells can enable the production of molecules currently accessible through energetically demanding syntheses. Copper(I)-based dyes represent electronically tunable charge transfer and separation systems. Herein, we report a Cu(I)-bisdiimine donor-chromophore-acceptor dye with an absorbance in the visible part of the solar spectrum composed of a phenothiazine electron donor, and dipyrido[3,2-a:2',3'-c]phenazine electron acceptor. This complex is incorporated onto a zinc oxide nanowire semiconductor surface effectively forming a photoanode that is characterized spectroscopically and electrochemically. We investigate the photo-oxidation of hydroquinone, and the photosensitization of 2,2,6,6-tetramethylpiperidine-1-oxyl and N-hydroxyphthalimide for the oxidation of furfuryl alcohol to furfuraldehyde, resulting in near quantitative conversions, with poor selectivity to the alcohol.
Keyphrases
- electron transfer
- visible light
- solar cells
- oxide nanoparticles
- hydrogen peroxide
- alcohol consumption
- aqueous solution
- induced apoptosis
- energy transfer
- room temperature
- air pollution
- particulate matter
- cell cycle arrest
- highly efficient
- high resolution
- oxidative stress
- mass spectrometry
- liquid chromatography
- endoplasmic reticulum stress
- sensitive detection
- single molecule
- cell death
- metal organic framework
- ionic liquid