Results 141 to 150 of about 65,683 (195)
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Industrial & Engineering Chemistry Research, 2019
Although supported Au catalysts have been frequently used for propene epoxidation in O₂ and H₂, long-term stability is still a major challenge for industrial applications.
Yingling Hong +3 more
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Although supported Au catalysts have been frequently used for propene epoxidation in O₂ and H₂, long-term stability is still a major challenge for industrial applications.
Yingling Hong +3 more
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Inorganic Chemistry Frontiers
The direct epoxidation of propylene using H2 and O2 has emerged as a promising alternative to conventional industrial processes, offering superior atom economy, environmental compatibility, and process economics.
Yupeng Tian +6 more
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The direct epoxidation of propylene using H2 and O2 has emerged as a promising alternative to conventional industrial processes, offering superior atom economy, environmental compatibility, and process economics.
Yupeng Tian +6 more
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Journal of Physical Chemistry C, 2019
Interfacial synergy of metal/oxide catalysts has been extensively studied in heterogeneous catalysis but elucidating the synergy mechanism and controlling the interfacial structure remain challenging.
Qian-Qian Zhang +4 more
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Interfacial synergy of metal/oxide catalysts has been extensively studied in heterogeneous catalysis but elucidating the synergy mechanism and controlling the interfacial structure remain challenging.
Qian-Qian Zhang +4 more
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Journal of Physical Chemistry A
High-valent metal-oxo species are key reactive intermediates in many biological and biological oxidation reactions. Herein, allylic hydroxylation (C-H) versus epoxidation (C═C) reactions of propene with a model catalyst iron phthalocyanine (FePc) in the ...
Ruinan Di +5 more
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High-valent metal-oxo species are key reactive intermediates in many biological and biological oxidation reactions. Herein, allylic hydroxylation (C-H) versus epoxidation (C═C) reactions of propene with a model catalyst iron phthalocyanine (FePc) in the ...
Ruinan Di +5 more
semanticscholar +1 more source
Quantum Chemical Modeling of Propene and Butene Epoxidation with Hydrogen Peroxide
The Journal of Physical Chemistry A, 2008The mechanism of hydrogen peroxide assisted epoxidation of propene, 1-butene, trans-2-butene, cis-2-butene, and isobutene was studied using density functional theory calculations. The results are rationalized in the context of the previously proposed direct pathway for epoxidation of ethene with hydrogen peroxide and compared to the indirect pathway ...
Angelica, Lundin +2 more
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Journal of Molecular Catalysis A: Chemical, 1996
Epoxidation of propene with magnesium monoperoxyphthalate used as oxidant and manganese as well as iron polyhalogenated porphyrins as catalysts has been investigated under mild conditions. The systems with manganese tetra-ortho-dichlorophenyl- and tetrapentafluorophenylporphyrin appeared very effective and high turnover numbers and selectivities were ...
R. Iwanejko +3 more
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Epoxidation of propene with magnesium monoperoxyphthalate used as oxidant and manganese as well as iron polyhalogenated porphyrins as catalysts has been investigated under mild conditions. The systems with manganese tetra-ortho-dichlorophenyl- and tetrapentafluorophenylporphyrin appeared very effective and high turnover numbers and selectivities were ...
R. Iwanejko +3 more
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Polybenzimidazole-supported molybdenum(VI) propene epoxidation catalyst
Journal of the Chemical Society, Chemical Communications, 1994A polybenzimidazole-supported molybdenum(VI) complex was found to be a highly active, stable and long-lived catalyst for the high pressure epoxidation of propene using tert-butyl hydroperoxide (Halcon process).
Matthew M. Miller, David C. Sherrington
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Effect of solvents on propene epoxidation catalyzed by titanium silicalite
Reaction Kinetics and Catalysis Letters, 2004Titanium silicalite was prepared using tetrapropylammonium bromide as a template. Propene epoxidation was studied on this catalyst using the mixtures of methanol with water or 2-propanol or acetone and the solvent effect was investigated systematically.
Gang Li +3 more
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, 2020
A serious of robust Au/TS-1 catalysts were prepared by modifying with various alkali carbonates including Na2CO3, K2CO3, Rb2CO3 and Cs2CO3via the ultrasonic impregnation. The alkali carbonate-modified Au/TS-1 catalysts were characterized by XRD, ICP, XPS,
Jinsong Fu +5 more
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A serious of robust Au/TS-1 catalysts were prepared by modifying with various alkali carbonates including Na2CO3, K2CO3, Rb2CO3 and Cs2CO3via the ultrasonic impregnation. The alkali carbonate-modified Au/TS-1 catalysts were characterized by XRD, ICP, XPS,
Jinsong Fu +5 more
semanticscholar +1 more source