Zobrazeno 1 - 10
of 26
pro vyhledávání: ''
Autor:
Beáta Vilhanová, Marek Kuzma, Jakub Januščák, Václav Matoušek, Jan Přech, Jan Pecháček, Petr Šot, Petr Kačer, Simona Bártová, Jiří Václavík
Publikováno v:
Catalysis Letters
The asymmetric transfer hydrogenation of five dihydroisoquinolines (DHIQs) was studied by NMR spectroscopy. The DHIQs differed by substitution with methoxy groups, which had a significant effect upon the reaction performance in terms of reaction rate
Autor:
Karsten Reuter, Sebastian Matera
Publikováno v:
Catalysis Letters
We assess heat and mass transfer limitations in in situ studies of model catalysts with a first-principles based multiscale modeling approach that integrates a detailed description of the surface reaction chemistry and the macro-scale flow structures
Publikováno v:
Catalysis Letters. 144(11):1884-1893
Dimethyl ether synthesis was performed from syngas over hybrid catalysts comprising a Cu/Zn/Al as metallic function and K10-montorillonite (K10) as acidic function. The acidic properties of K10 were tuned by deposition of one monolayer of tungstophos
Publikováno v:
Catalysis Letters. 122(3-4):238-246
Lanthanum oxide-based catalysts are active in the elimination of HCl from C2H5Cl, 1,2-C2H4Cl2 and 1,1,2-C2H3Cl3 leading to the formation of their respective chlorinated ethenes. An oxygen-rich catalytic surface may form CO, CO2 and C2HCl as side prod
Publikováno v:
Catalysis Letters
The catalytic (Pd/Al2O3 and Pd/C; mean Pd size 2.5–3.0 nm from (S)TEM analysis) synthesis of di-butylamine (DBA) and tri-butylamine (TBA) from mono-butylamine (MBA) and DBA, respectively, in continuous gas phase operation is demonstrated. Exclusive
Autor:
Francisco Rodríguez-Reinoso, Anna Wach, Marek Drozdek, Sebastian Jarczewski, Barbara Dudek, Piotr Kuśtrowski, Mirian Elizabeth Casco
Publikováno v:
RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
Universidad de Alicante (UA)
Poly(furfuryl alcohol) was introduced into a pore system of MCM-48 silica by the precipitation polycondensation of furfuryl alcohol (FA). The complete filling of the pores without the deposition of significant amounts of polymer on the external surfa
Autor:
Wenping Shi, Jianwei Li
Publikováno v:
Catalysis Letters. 143(12):1285-1293
The deactivation of sulfate-promoted iron oxide in the esterification of acetic acid and n-butanol was studied. The sulfate-promoted iron oxide was used ten runs and 10 h, continually and accumulatively. After ten-run continual use of the catalyst, a
Publikováno v:
Catalysis Letters. 141(5):742-747
The conversion and stereoselectivity of transformation to endo and exo norbornene derivatives was determined in the Diels–Alder reaction of cyclopentadiene with alkyl acrylates. The reactions were carried out in the pyrrolidinium ionic liquids in t
Publikováno v:
Catalysis Letters. 141(6):817-820
The conversion of anisole, a prototypical bio-oil compound, was catalyzed by Pt/Al2O3 in the presence of H2 at 573 K, with the selectivity for C–O bond breaking approximately matching that for ring hydrogenation; these reactions were accompanied by
Autor:
Anisha Chakrabarti, Israel E. Wachs
Publikováno v:
Catalysis Letters. 145(4):985-994
This perspective article critically reviews the catalysis literature on the nature of the surface CrOx sites present on SiO2 in different environments. The recent application of in situ spectroscopic techniques that directly monitor the surface chrom