Comparative study of the anchorage and the catalytic properties of nanoporous TiO2 films modified with ruthenium (II) and rhenium (I) carbonyl complexes

Diego P. Oyarzún; Sylvie Chardon-Noblat; Omar E. Linarez Pérez; Manuel López Teijelo; César Zúñiga; Ximena Zarate; Eduardo Shott; Alexander Carreño; Ramiro Arratia-Perez

doi:10.1016/j.cplett.2018.01.040

Comparative study of the anchorage and the catalytic properties of nanoporous TiO₂ films modified with ruthenium (II) and rhenium (I) carbonyl complexes

Diego P. Oyarzún, Sylvie Chardon-Noblat, Omar E. Linarez Pérez, Manuel López Teijelo, César Zúñiga, Ximena Zarate, Eduardo Shott, Alexander Carreño, Ramiro Arratia-Perez

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

In this article we study the anchoring of cis-[Ru(bpyC₄pyr)(CO)₂(CH₃CN)₂]²⁺, cis-[Ru(bpy)₂(CO)₂]²⁺ and cis-[Ru(bpyac)(CO)₂Cl₂], onto nanoporous TiO₂ employing electropolymerization, electrostatic interaction and chemical bonding. Also, the [Re(bpyac)(CO)₃Cl] rhenium(I) complex for chemical anchorage was analyzed. The characterization of TiO₂/Ru(II) and TiO₂/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 CO₂ reduction) were evaluated. The efficiency improvement in redox process derived from the (photo)electrochemical evidence indicates that modified nanoporous TiO₂ structures enhance the rate of charge transfer reactions.

Original language	English
Pages (from-to)	40-47
Number of pages	8
Journal	Chemical Physics Letters
Volume	694
DOIs	https://doi.org/10.1016/j.cplett.2018.01.040
State	Published - 16 Feb 2018
Externally published	Yes

Keywords

Catalytic properties
EDS mapping
Nanoporous TiO films
Rhenium complex
Ruthenium complex

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.cplett.2018.01.040

Cite this

Oyarzún, D. P., Chardon-Noblat, S., Linarez Pérez, O. E., López Teijelo, M., Zúñiga, C., Zarate, X., Shott, E., Carreño, A., & Arratia-Perez, R. (2018). Comparative study of the anchorage and the catalytic properties of nanoporous TiO₂ films modified with ruthenium (II) and rhenium (I) carbonyl complexes. Chemical Physics Letters, 694, 40-47. https://doi.org/10.1016/j.cplett.2018.01.040

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title = "Comparative study of the anchorage and the catalytic properties of nanoporous TiO2 films modified with ruthenium (II) and rhenium (I) carbonyl complexes",

abstract = "In this article we study the anchoring of cis-[Ru(bpyC4pyr)(CO)2(CH3CN)2]2+, cis-[Ru(bpy)2(CO)2]2+ and cis-[Ru(bpyac)(CO)2Cl2], onto nanoporous TiO2 employing electropolymerization, electrostatic interaction and chemical bonding. Also, the [Re(bpyac)(CO)3Cl] rhenium(I) complex for chemical anchorage was analyzed. The characterization of TiO2/Ru(II) and TiO2/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 CO2 reduction) were evaluated. The efficiency improvement in redox process derived from the (photo)electrochemical evidence indicates that modified nanoporous TiO2 structures enhance the rate of charge transfer reactions.",

keywords = "Catalytic properties, EDS mapping, Nanoporous TiO films, Rhenium complex, Ruthenium complex",

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doi = "10.1016/j.cplett.2018.01.040",

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Oyarzún, DP, Chardon-Noblat, S, Linarez Pérez, OE, López Teijelo, M, Zúñiga, C, Zarate, X, Shott, E, Carreño, A & Arratia-Perez, R 2018, 'Comparative study of the anchorage and the catalytic properties of nanoporous TiO₂ films modified with ruthenium (II) and rhenium (I) carbonyl complexes', Chemical Physics Letters, vol. 694, pp. 40-47. https://doi.org/10.1016/j.cplett.2018.01.040

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T1 - Comparative study of the anchorage and the catalytic properties of nanoporous TiO2 films modified with ruthenium (II) and rhenium (I) carbonyl complexes

AU - Oyarzún, Diego P.

AU - Chardon-Noblat, Sylvie

AU - Linarez Pérez, Omar E.

AU - López Teijelo, Manuel

AU - Zúñiga, César

AU - Zarate, Ximena

AU - Shott, Eduardo

AU - Carreño, Alexander

AU - Arratia-Perez, Ramiro

PY - 2018/2/16

Y1 - 2018/2/16

N2 - In this article we study the anchoring of cis-[Ru(bpyC4pyr)(CO)2(CH3CN)2]2+, cis-[Ru(bpy)2(CO)2]2+ and cis-[Ru(bpyac)(CO)2Cl2], onto nanoporous TiO2 employing electropolymerization, electrostatic interaction and chemical bonding. Also, the [Re(bpyac)(CO)3Cl] rhenium(I) complex for chemical anchorage was analyzed. The characterization of TiO2/Ru(II) and TiO2/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 CO2 reduction) were evaluated. The efficiency improvement in redox process derived from the (photo)electrochemical evidence indicates that modified nanoporous TiO2 structures enhance the rate of charge transfer reactions.

AB - In this article we study the anchoring of cis-[Ru(bpyC4pyr)(CO)2(CH3CN)2]2+, cis-[Ru(bpy)2(CO)2]2+ and cis-[Ru(bpyac)(CO)2Cl2], onto nanoporous TiO2 employing electropolymerization, electrostatic interaction and chemical bonding. Also, the [Re(bpyac)(CO)3Cl] rhenium(I) complex for chemical anchorage was analyzed. The characterization of TiO2/Ru(II) and TiO2/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 CO2 reduction) were evaluated. The efficiency improvement in redox process derived from the (photo)electrochemical evidence indicates that modified nanoporous TiO2 structures enhance the rate of charge transfer reactions.

KW - Catalytic properties

KW - EDS mapping

KW - Nanoporous TiO films

KW - Rhenium complex

KW - Ruthenium complex

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