Results 31 to 40 of about 65,683 (195)

Gas-Phase Epoxidation of Propene with Hydrogen Peroxide Vapor

, 2015
A study on the gas-phase epoxidation of propene with vapor hydrogen peroxide has been carried out. The main purpose was to understand the key factors in the reaction and the relationship between epoxidation of propene and decomposition of hydrogen ...
T. Alexander Nijhuis (1298451), Mart H. J. M. de Croon (1298448), Jaap C. Schouten (1298454), Dulce M. Perez Ferrandez (1298457)   +3 more
core   +1 more source

Enzyme@Silicone: A Versatile Combo for Robust Synthetic Biocatalysis?

Advanced Synthesis &Catalysis, Volume 368, Issue 17, 1 September 2026.
Silicone‐based polymers are versatile materials for enzyme immobilization, offering unique advantages such as chemical inertness, thermal stability, and tunable morphology. This review highlights their applications in synthetic biocatalysis, from batch to continuous processes, and addresses key challenges such as mass transport limitations and ...
Marion B. Ansorge‐Schumacher
wiley   +1 more source

New Biobased Polyester Polyols With Tunable Tg Values From 4‐Vinylguaiacol‐Derived Monomers

ChemSusChem, Volume 19, Issue 15, 14 August 2026.
Biobased low‐molecular‐weight polyesters were obtained by ROCOP of guaiacol‐derived epoxides with cyclic anhydrides. Varying the length of the acyl moieties on the epoxides and the cyclic anhydride structures, it is possible to tune the Tg's within an 80 ºC wide temperature range.
Erika Zangelmi, Orlando Santoro, Raffaele Cucciniello, Francesco Della Monica, Lorella Izzo   +4 more
wiley   +1 more source

Anaerobic biodesulfurization of thiophenes [PDF]

, 2002
Distillates from crude oil such as diesel and fuel oil may contain significant amounts of dibenzothiophenes and their alkylated derivatives, containing organically bound sulfur.
Marcelis, C.L.M., Marcelis, C.
core  

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, Volume 26, Issue 8, August 2026.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source

Heterogenisation of ketone catalysts within mesoporous supports for asymmetric epoxidation

, 2013
The synthesis of the first mesoporous silica (150 Å) anchored carbohydrate-derived chiral ketone is described. This new heterogeneous catalyst has been shown to be effective in the asymmetric epoxidation of olefins by oxone.
Robert Raja, Raja, Robert, Lynda J. Brown, Brown, Lynda J., Richard C. D. Brown, Brown, Richard C.D.   +5 more
core   +1 more source

MCF Material as an Attractive Support for Vanadium Oxide Applied as a Catalyst for Propene Epoxidation with N2O

Catalysis Letters, 2018
Vanadium modified mesocellular silica foams (MCF) materials (V content ca. 3 and 5 wt%) prepared by the impregnation method show mainly isolated or low-polymeric VOx species, which was confirmed by means of Raman spectroscopy and DR UV–Vis.
A. Held, J. Kowalska-Kuś, K. Nowiǹska, K. Góra-Marek   +3 more
semanticscholar   +1 more source

Enhancement of catalyst performance in the direct propene epoxidation: a study into gold-titanium synergy

, 2013
Enhanced productivity toward propene oxide in the direct propene epoxidation with hydrogen and oxygen over gold nanoparticles supported on titanium-grafted silica was achieved by adjusting the gold–titanium synergy.
Nijhuis, TA Xander = Alexander, Verhoeven, M.W.G.M., Hensen, E.J.M., Pidko, E.A., Halin, SJA, Pidko, EA Evgeny, Halin, S.J.A., Perez Ferrandez, D.M., Chen, J Jiaqi, Perez Ferrandez, DM Dulce, Hensen, EJM Emiel, Chen, J., Schouten, J.C., Schouten, J C, Verhoeven, MWGM Tiny, Nijhuis, T.A.   +15 more
core   +1 more source

How metallic is gold in the direct epoxidation of propene: an FTIR study

Catalysis Science & Technology, 2013
Unraveling the oxidation state of gold is important to understand the role of gold in direct propene epoxidation on gold–titania catalysts. A Fourier transform infrared study of low-temperature carbon monoxide adsorption was performed over Au/TiO2 and Au/Ti–SiO2 under an atmosphere of the reaction mixture of oxygen, hydrogen, and propene.
Chen, J., Pidko, E.A., Ordomskiy, V., Verhoeven, M.W.G.M., Hensen, E.J.M., Schouten, J.C., Nijhuis, T.A.   +6 more
openaire   +2 more sources

Simultaneous Photoactivation of Copper and Ti‐Doped CeO2−x Enables Optimal Acceleration of the RWGS Reaction

Carbon Energy, Volume 8, Issue 7, July 2026.
A combination of visible light and thermal energy accelerates the CO formation rate up to 57 times compared to dark conditions using a 3Cu/CeTiO2−x catalyst. Kinetic analysis, as well as steady state and transient spectroscopy, was applied under photocatalytic conditions to analyze and disentangle the reaction channels under dark and illuminated ...
Miha Okorn, Kristijan Lorber, Matjaž Mazaj, Nataša Novak Tušar, Petar Djinović   +4 more
wiley   +1 more source