Journal ArticleDOI
An ISS, AES, and CO chemisorption study of titania overlayers on Rh(111)
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TLDR
In this paper, the growth of titania overlayers on a Rh(111) surface has been investigated and the results support a site-blocking model of chemisorption suppression and show that titania has relatively little effect on the desorption energy of CO.About:
This article is published in Surface Science.The article was published on 1988-10-02. It has received 20 citations till now. The article focuses on the topics: Chemisorption & Auger electron spectroscopy.read more
Citations
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Advanced Electron Microscopy of Metal–Support Interactions in Supported Metal Catalysts
TL;DR: In this article, the authors discuss the recent contribution of advanced electron microscopy to the study of metal-support interactions, as well as the challenges and opportunities of applying aberration-corrected microscopy techniques to the investigation of atomic-scale structures of complex heterogeneous catalysts.
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Lewis acidity as an explanation for oxide promotion of metals : implications of its importance and limits for catalytic reactions
TL;DR: In this paper, the authors investigated the effect of metal oxides on CO hydrogenation and showed that titanium, niobium, and tantalum oxide overlayers are the most effective promoters.
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The epitaxial growth of zirconium oxide thin films on Pt(111) single crystal surfaces
TL;DR: The structure of the interface between the Zirconium oxide films and the Pt substrate was determined by AES, ISS, XPS and LEED as discussed by the authors, which is related to the structure of ZrO 2.
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Opportunities for Tailoring Catalytic Properties Through Metal-Support Interactions
TL;DR: The oxides used as supports for metal catalysts can be used to modify the catalyst properties as mentioned in this paper, and three relatively new ways for optimizing the oxide-metal interactions have been discussed.
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Strong metal–support interactions on rhodium model catalysts
Ch. Linsmeier,Edmund Taglauer +1 more
TL;DR: In this article, the reaction processes on catalyst surfaces are studied by means of surface science techniques, such as ion scattering spectroscopy, X-ray photo-electron spectrograms, and thermal desorption measurements.
References
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Journal ArticleDOI
MECHANISM OF STRONG METAL-SUPPORT INTERACTION IN Ni/TiO2
TL;DR: In this article, the presence of titania on the metal surface induced by high-temperature treatment and the possible incorporation of surface or subsurface hydrogen act synergistically to modify and maintain the activity of catalysts.
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Strong metal-support interaction in NiTi02: Auger and vibrational spectroscopy evidence for the segregation of TiOx (x ≈-1) on Ni and its effects on CO chemisorption
TL;DR: In this article, the authors showed that hydrogen reduction at 700 °K of a 120-A nickel film deposited on TiO2 results in the segregation of TiOx (x close to 1) onto the nickel surface.
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Surface modification of platinum by titanium dioxide overlayers: A case of simple site blocking
TL;DR: In this paper, a combination of X-ray photoelectron spectroscopy (XPS), low energy inelastic ion scattering (LEISS), and temperature programmed desorption were used to fully characterize the composition, electronic structure and chemisorption properties of the modified surface.
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Determination of growth modes of ultrathin films from Auger electron spectroscopy : An assessment and commentary
TL;DR: In this paper, a set of simple procedures for studying the growth modes of vacuum-deposited ultrathin films were proposed. But the assumptions made in these procedures are not carefully considered: (i) possible changes in the sticking probability at certain coverages; (ii) dissolution of the deposited material; (iii) anomalous variations in the parameters describing the emission and attenuation of the Auger electrons (possibly due to diffraction); (iv) the possibility of growth modes in which multiple layers form simultaneously (the n th layer starting before the ( n − 1
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Evidence for diffusion of a partially oxidized titanium species into bulk platinum
C.S. Ko,R.J. Gorte +1 more
TL;DR: In this article, an oxidized titanium species diffuses into a clean Pt foil between 700 and 900 K. This diffusion is reversible and the titania returns to the surface when the sample is cooled.