Surface behavior of alumina-supported Pt catalysts modified with cerium as revealed by X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy of CO adsorption

Article Abstract:

The spectral characterization of Pt supported on Al2O3, CeO2, and mixed CeO2-Al2O3 oxides with different CeO2 loadings shows the great influence of the type of the support and pretreatment temperature on the surface state of Pt and Ce. The results obtained by applying the X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared (FTIR) spectroscopy of CO adsorption to the samples is presented.

Photoelectron spectroscopy, Properties, Carbon compounds

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Synthesis and oxidation of CeN film: An in situ investigation by electron spectroscopies

Article Abstract:

Nearly stoichiometric CeN film is synthesized on a Re(0001) substrate in an ultrahigh vacuum system involving highly active N atoms in the growth process, generated by thermal decomposition of ammonia by use of a hot tungsten filament. In situ Auger electron spectroscopy and X-ray photoelectron spectroscopy investigations show that CeN film is directly oxidized to CeO(sub 2) after exposure to O(sub 2) at room temperature.

Analytical Laboratory Instrument Manufacturing, Analytical instruments, Photo-Electron Spectroscopy, Analysis, Stoichiometry, Electron spectroscopy

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Preparation of Sr2CeO4 blue phosphor particles and rare earth (Eu, Ho, Tm, or Er)-doped Sr2CeO4 phosphor particles, using an emulsion liquid membrane system

Article Abstract:

Sr2CeO4 blue phosphor particles were prepared with an emulsion liquid membrane system, which could be utilized as a micro reactor for the preparation of size- and morphology-controlled fine particles. The composite oxalate particles obtained were sub micrometer size and much smaller than those prepared in the homogeneous aqueous solutions.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Oxalates, Phosphors, Strontium

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