1. Comparative study of the anchorage and the catalytic properties of nanoporous TiO2 films modified with ruthenium (II) and rhenium (I) carbonyl complexes.
- Author
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Oyarzún, Diego P., Chardon-Noblat, Sylvie, Linarez Pérez, Omar E., López Teijelo, Manuel, Zúñiga, César, Zarate, Ximena, Shott, Eduardo, Carreño, Alexander, and Arratia-Perez, Ramiro
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ELECTROPOLYMERIZATION , *RUTHENIUM compounds , *NANOPOROUS materials , *NANOSTRUCTURED materials ,RUTHENIUM isotopes - Abstract
In this article we study the anchoring of cis-[Ru(bpyC 4 pyr)(CO) 2 (CH 3 CN) 2 ] 2+ , cis-[Ru(bpy) 2 (CO) 2 ] 2+ and cis-[Ru(bpyac)(CO) 2 Cl 2 ], onto nanoporous TiO 2 employing electropolymerization, electrostatic interaction and chemical bonding. Also, the [Re(bpyac)(CO) 3 Cl] rhenium(I) complex for chemical anchorage was analyzed. The characterization of TiO 2 /Ru(II) and TiO 2 /Re(I) nanocomposite films was performed by field emission scanning electron microscopy (FESEM), electron dispersive X-ray spectroscopy (EDS) and Raman spectroscopy. In addition, for the more stable nanocomposites obtained, the catalytic properties (solar energy conversion and CO 2 reduction) were evaluated. The efficiency improvement in redox process derived from the (photo)electrochemical evidence indicates that modified nanoporous TiO 2 structures enhance the rate of charge transfer reactions. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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