Results 231 to 240 of about 221,203 (268)
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Update on selective oxidation using gold
Chem. Soc. Rev., 2012This critical review aims to update the recent development in the selective oxidation of organic compounds by gold catalysis, highlighting the progress in the last three years. Following the impressive developments in the last decades, several protocols for catalytic oxidation are today available, which are based on the extraordinary properties of gold
C. Della Pina, E. Falletta, M. Rossi
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Multicomponent Oxides in Selective Oxidation of Alkanes Theoretical Acidity versus Selectivity
Topics in Catalysis, 2008Semi-empirical relationships between the ‘optical basicity’ Λ (so-called after Duffy) of solid oxides and the ‘thermodynamic’ selectivity in mild and total oxidation of hydrocarbons have recently been set up. They can be used to determine the optimum acidity of a solid catalyst or to account for its observed selectivity in a given reaction.
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Selective Oxidation of Alcohols by Dioxiranes
1991Abstract The oxidation of a number of secondary alcohols (i.e., 2-propanol, 1-phenyl ethanol, 3-octanol, cyclobutanol, exo- and endo-2-norborneol) by methyl(trifluoromethyl)dioxirane (1b) affords the corresponding ketones in high yield (92-99%), under mild conditions and within short reaction times (2-20 min).
Curci R, Fiorentino M, Fusco C, Mello R
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Selectivity in heterogeneous catalytic oxidation
Pure and Applied Chemistry, 1978Abstract
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Heterocyclic Hydroperoxides in Selective Oxidations
ChemInform, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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Tungsten oxides as catalysts in selective oxidation
Journal of Catalysis, 1983Abstract The reaction of allyl iodide was studied at the surface of four tungsten oxides and molybdenum trioxide. On WO2.95 and MoO3, in which crystallographic shear structures are formed on reduction, acrolein is produced at 300–400 °C, whereas W18O49 and WO2, which do not show this property, are inactive, as is WO3.
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Selective Oxidation of Propylene
1979Publisher Summary This chapter focuses on a single aspect of selective hydrocarbon oxidation, the selective oxidation of propylene to acrolein, with the questions in mind, such as “How is propylene activated? What is the nature of the reactive oxygen species?” The selective oxidation of propylene is an important model reaction for studying oxidation ...
George W. Keulks +2 more
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Journal of Alloys and Compounds, 1993
Abstract The oxidation of Zr2Al3 in dry oxygen in the temperature range 875–965 K obeys a parabolic rate law. An activation energy of 270 kJ mol−1 has been estimated. During the oxidation, aluminium diffuses from the oxide layer into the Zr2Al3 bulk, thus forming the ZrAl2 phase very close to the oxide-alloy interface.
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Abstract The oxidation of Zr2Al3 in dry oxygen in the temperature range 875–965 K obeys a parabolic rate law. An activation energy of 270 kJ mol−1 has been estimated. During the oxidation, aluminium diffuses from the oxide layer into the Zr2Al3 bulk, thus forming the ZrAl2 phase very close to the oxide-alloy interface.
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Heterogeneous selective oxidation over supported metal catalysts: From nanoparticles to single atoms
Applied Catalysis B: Environmental, 2023Hongling Yang +2 more
exaly
Chemical looping-based energy transformation via lattice oxygen modulated selective oxidation
Progress in Energy and Combustion Science, 2023Zhiqiang Sun +2 more
exaly