SDS of cas: 2834-05-1. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Artificial photosynthesis: photoanodes based on polyquinoid dyes onto mesoporous tin oxide surface. Author is Volpato, Giulia Alice; Colusso, Elena; Paoloni, Lorenzo; Forchetta, Mattia; Sgarbossa, Francesco; Cristino, Vito; Lunardon, Marco; Berardi, Serena; Caramori, Stefano; Agnoli, Stefano; Sabuzi, Federica; Umari, Paolo; Martucci, Alessandro; Galloni, Pierluca; Sartorel, Andrea.
Dye-sensitized photoelectrochem. cells represent an appealing solution for artificial photosynthesis, aimed at the conversion of solar light into fuels or commodity chems. Extensive efforts have been directed towards the development of photoelectrodes combining semiconductor materials and organic dyes; the use of mol. components allows to tune the absorption and redox properties of the material. Recently, we have reported the use of a class of pentacyclic quinoid organic dyes (KuQuinone) chemisorbed onto semiconducting tin oxide as photoanodes for water oxidation In this work, we investigate the effect of the SnO2 semiconductor thickness and morphol. and of the dye-anchoring group on the photoelectrochem. performance of the electrodes. The optimized materials are mesoporous SnO2 layers with 2.5 μm film thickness combined with a KuQuinone dye with a 3-carboxylpropyl-anchoring chain: these electrodes achieve light-harvesting efficiency of 93% at the maximum absorption wavelength of 533 nm, and photocurrent d. J up to 350 μA/cm2 in the photoelectrochem. oxidation of ascorbate, although with a limited incident photon-to-current efficiency of 0.075%. Calculations based on the d. functional theory (DFT) support the role of the reduced species of the KuQuinone dye via a proton-coupled electron transfer as the competent species involved in the electron transfer to the tin oxide semiconductor. Finally, a preliminary investigation of the photoelectrodes towards benzyl alc. oxidation is presented, achieving photocurrent d. up to 90 μA/cm2 in acetonitrile in the presence of N-hydroxysuccinimide and pyridine as redox mediator and base, resp. These results support the possibility of using mol.-based materials in synthetic photoelectrochem.
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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI