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pro vyhledávání: '"L. Pasupulety"'
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Publikováno v:
Journal of Colloid and Interface Science. 312:68-75
The phase behavior and structure of aqueous-in-n-heptane microemulsions, stabilized by surfactant mixtures of di-n-didodecyldimethylammonium bromide, DDAB, and Brij(R)35 were studied by small angle (neutron or X-ray) scattering techniques. The aqueou
Publikováno v:
Journal of Colloid and Interface Science. 302:501-508
A surfactant-stabilized microemulsion method was used to prepare nano-sized particles (10 nm) of cubic-CeO2 exposing surfaces of not only highest specific areas (142-201 m(2)/g) ever reported for polycrystalline ceria, but also high thermal stability
Publikováno v:
Applied Catalysis A: General. 243:81-92
Adsorptive and catalytic interactions of gas phase acetic acid with surfaces of alumina, titania and ceria were observed by in situ Fourier-transform infrared (FTIR) spectroscopy on heating from room temperature up to 400 °C. The results revealed th
Publikováno v:
The Journal of Physical Chemistry B. 106:12747-12756
In-situ infrared spectroscopy was used to examine the gas phase and adsorbed species formed during the oxidation of propane gas on ZrO2, TiO2, and CeO2 catalysts, versus a reference Pt/Al2O3 catalyst, in the absence and presence of an oxygen atmosphe
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 178:125-137
Self-supporting wafers of silica, alumina, titania and zirconia were exposed to gas phase molecules of isopropanol or methylbutynol at different temperatures (up to 400 °C) in situ a specially designed infrared (IR) reactor/cell. Following cooling t
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 190:261-274
Exposure of strong Lewis (coordinatively unsaturated metal atoms) and Bronsted (proton donor OH-groups) acid sites on solid surfaces is a prime demand for potential adsorptive and catalytic applications. In situ FTIR spectroscopy of small adsorbed ba
Publikováno v:
Langmuir. 17:4025-4034
Pure alumina was modified by additives of Ni, Rh, and Pt metal particles by impregnation from aqueous solutions of corresponding precursor compounds and subsequent reduction in a stream of hydrogen at 400 °C for 2 h. The catalysts thus obtained were
Publikováno v:
Langmuir. 17:768-774
Adsorption and surface reactions of acetone vapor were observed on the title oxides at room and higher temperatures (up to 400 °C), using in situ infrared spectroscopy. The results were correlated with results of infrared spectroscopy of adsorbed py
Publikováno v:
Applied Catalysis A: General. 198:247-259
CuOx-modified and unmodified Mn2O3, Cr2O3 and WO3 catalysts were prepared by impregnation with Cu(NO3)2 solution and/or calcination at 700°C of appropriate precursor compounds. Bulk phase composition and thermochemical stability were characterized b