Investigation on the formation of RuO2-based mixed oxide coatings by spectroscopic methods

Mink, J.; Kristóf, János; Battisti, Achille De; Daolio, S.; Németh, Cs.

doi:10.1016/0039-6028(95)00439-4

Cited by 47 publications

(18 citation statements)

References 10 publications

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“…At this temperature crystallization water and residual solvent are already lost and the thermal decomposition (oxidation) is about to start. In accordance with earlier studies, Ru-carbonyls, carboxylates and RuO x bands can be observed in the spectrum [20].…”

Section: Resultssupporting

confidence: 92%

Investigation of RuO2/Ta2O5 thin film evolution by thermogravimetry combined with mass spectrometry

et al. 2005

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Section: Resultssupporting

confidence: 92%

Investigation of RuO2/Ta2O5 thin film evolution by thermogravimetry combined with mass spectrometry

et al. 2005

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“…The very sharp and small peak at 1384 cm À1 occurs in all samples with a RuO 2 content ! 1 wt % and is a typical position for NO 3 groups [33] but also surfacebonded CO [34] on the RuO 2 could explain this peak. Additional spectral features for undoped TiO 2 anatase are a broad absorption, centered around 3400 cm…”

mentioning

confidence: 98%

Study of the Efficiency of UV and Visible‐Light Photocatalytic Oxidation of Methanol on Mesoporous RuO₂–TiO₂ Nanocomposites

2011

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Mesoporous RuO(2)-TiO(2) nanocomposites at different RuO(2) concentrations (0-10 wt%) are prepared through a simple one-step sol-gel reaction of tetrabutyl orthotitanate with ruthenium(III) acetylacetonate in the presence of an F127 triblock copolymer as structure-directing agent. The thus-formed RuO(2)-TiO(2) network gels are calcined at 450 °C for 4 h leading to mesoporous RuO(2)-TiO(2) nanocomposites. The photocatalytic CH(3)OH oxidation to HCHO is chosen as the test reaction to examine the photocatalytic activity of the mesoporous RuO(2)-TiO(2) nanocomposites under UV and visible light. The photooxidation of CH(3)OH is substantially affected by the loading amount and the degree of dispersion of RuO(2) particles onto the TiO(2), which indicates the exclusive effect of the RuO(2) nanoparticles on this photocatalytic reaction under visible light. The measured photonic efficiency ξ=0.53% of 0.5 wt% RuO(2)-TiO(2) nanocomposite for CH(3)OH oxidation is maximal and the further increase of RuO(2) loading up to 10 wt% gradually decreases this value. The cause of the visible-light photocatalytic behavior is the incorporation of small amounts of Ru(4+) into the anatase lattice. On the other hand, under UV light, undoped TiO(2) shows a very good photonic efficiency, which is more than three times that for commercial photocatalyst, P-25 (Evonik-Degussa); however, addition of RuO(2) suppresses the photonic efficiency of TiO(2). The proposed reaction mechanism based on the observed behavior of RuO(2)-TiO(2) photocatalysts under UV and visible light is explored.

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“…3. The strong band ( 1 ) around at 600 cm −1 is associated with the characteristic vibrational mode of rutile RuO 2 [22]. The absorption peak ( 2 ) at around 1095 cm −1 is assigned to characteristic stretching vibration of peroxo groups [23].…”

Section: Ft-ir Studymentioning

confidence: 97%

Chemically synthesized hydrous RuO2 thin films for supercapacitor application

Patil

Kulkarni

Jamadade

et al. 2011

Journal of Alloys and Compounds

101

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Investigation on the formation of RuO2-based mixed oxide coatings by spectroscopic methods

Cited by 47 publications

References 10 publications

Investigation of RuO2/Ta2O5 thin film evolution by thermogravimetry combined with mass spectrometry

Investigation of RuO2/Ta2O5 thin film evolution by thermogravimetry combined with mass spectrometry

Study of the Efficiency of UV and Visible‐Light Photocatalytic Oxidation of Methanol on Mesoporous RuO₂–TiO₂ Nanocomposites

Chemically synthesized hydrous RuO2 thin films for supercapacitor application

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Investigation on the formation of RuO2-based mixed oxide coatings by spectroscopic methods

Cited by 47 publications

References 10 publications

Investigation of RuO2/Ta2O5 thin film evolution by thermogravimetry combined with mass spectrometry

Investigation of RuO2/Ta2O5 thin film evolution by thermogravimetry combined with mass spectrometry

Study of the Efficiency of UV and Visible‐Light Photocatalytic Oxidation of Methanol on Mesoporous RuO2–TiO2 Nanocomposites

Chemically synthesized hydrous RuO2 thin films for supercapacitor application

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Study of the Efficiency of UV and Visible‐Light Photocatalytic Oxidation of Methanol on Mesoporous RuO₂–TiO₂ Nanocomposites