CO sensitivity of the PtO/SnO2 and PdO/SnO2 layer structures: Kelvin probe and XPS analysis

Kiss, G.; Josepovits, V.K.; Kovács, Krisztina; Ostrick, Bernhard; Fleischer, Maximilian; Meixner, H.; Réti, F.

doi:10.1016/s0040-6090(03)00505-4

Cited by 24 publications

(14 citation statements)

References 6 publications

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“…Figure 12 shows the XPS data of Pt/CoOx/SiO2 samples. The Pt4f profiles were deconvoluted into three peaks centered at around 74.3, 72.5, and 71.2 eV, corresponding to Pt 4+ [33], Pt 2+ [34][35][36], and Pt 0 [37], respectively. As seen from Figure 12 and Figure 12.…”

Section: Xps Characterization Of Pt Speciesmentioning

confidence: 99%

Pt/MOx/SiO2, Pt/MOx/TiO2, and Pt/MOx/Al2O3 Catalysts for CO Oxidation

et al. 2015

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Conventional supported Pt catalysts have often been prepared by loading Pt onto commercial supports, such as SiO2, TiO2, Al2O3, and carbon. These catalysts usually have simple metal-support (i.e., Pt-SiO2) interfaces. To tune the catalytic performance of supported Pt catalysts, it is desirable to modify the metal-support interfaces by incorporating an oxide additive into the catalyst formula. Here we prepared three series of metal oxide-modified Pt catalysts (i.e., Pt/MOx/SiO2, Pt/MOx/TiO2, and Pt/MOx/Al2O3, where M = Al, Fe, Co, Cu, Zn, Ba, La) for CO oxidation. Among them, Pt/CoOx/SiO2, Pt/CoOx/TiO2, and Pt/CoOx/Al2O3 showed the highest catalytic activities. Relevant samples were characterized by N2 adsorption-desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), H2 temperature-programmed reduction (H2-TPR), X-ray photoelectron spectroscopy (XPS), CO temperature-programmed desorption (CO-TPD), O2 temperature-programmed desorption (O2-TPD), and CO2 temperature-programmed desorption (CO2-TPD).

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Section: Xps Characterization Of Pt Speciesmentioning

confidence: 99%

Pt/MOx/SiO2, Pt/MOx/TiO2, and Pt/MOx/Al2O3 Catalysts for CO Oxidation

et al. 2015

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“…4 shows the XPS spectra for Pt4f orbital impregnated on MCM-41 and MCM-48. The binding energies were displayed in peaks shown at 80, 77, 73, and 70 eV, assigned to Pt 4f 5/2 , PtO 4f 5/2 , PtO 4f 7/2 , and PtO 2 4f 7/1 , respectively [17,18]. In the curve of Pt 4f 5/2 and PtO 2 4f 7/2 in Pt/MCM-41, the peak areas became larger and smaller, respectively, compared to that in Pt/MCM-48.…”

Section: Physical Properties For Prepared Pt/mcm-41 and Pt/mcm-48mentioning

confidence: 99%

Characterization of Pt-impregnated MCM-41 and MCM-48 and their catalytic performances in selective catalytic reduction for NOx

Jang

Lee

Kim

et al. 2005

Applied Catalysis A: General

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“…4 shows the XPS spectra of the Pt4f orbital impregnated on the MCM-41 and SBA-15 catalysts. The binding energies were shown at 76, 74.5, and 73 eV, which were assigned to PtO 4f 7/2 , Pt 4f 5/2 , and PtO 2 4f 7/2 , respectively [19,20]. With Pt 4f 5/2 and PtO 2 4f 7/2 in Pt/SBA-15, the peak areas became larger than that in Pt/MCM-41.…”

Section: The Physical Properties Of Pt/mcm-41 and Pt/sba-15mentioning

confidence: 97%