Registration Number
0210U001330,
0108U005209
, R & D reports
Title
Development of the high-activity Au/TiO2 catalyst on the basis of analysis of the physical and chemical state of Au nanoparticles on theTiO2-support.
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Head
Chenakin Sergiy Petrovich, Доктор фізико-математичних наук
Registration Date
05-02-2010
Organization
National Academy of Sciences of Ukraine Technical center
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X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) were employed to study surface composition and electronic properties of Au/TiO2 catalysts produced by co-precipitation and deposition-precipitation techniques. It was shown that surface characteristics of the catalysts were dependent on the preparation route and pretreatment conditions and exhibited correlation with catalytic performance of the samples. Also, the effect of extended X-ray irradiation on the surface physical-chemical state of the samples was investigated. In the catalyst, interaction of Au nanoparticles with the support was found to result in a slight shift of core level spectra and changes of the valence band, X-ray induced Auger spectra and ionicity of the Ti-O bonds, compared to TiO2.
Product Description
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Васильєв Михайло Олексійович
Макеєва Ірина Миколаївна
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2020-04-02
