Zobrazeno 1 - 10
of 40
pro vyhledávání: '"I. Pitsch"'
Publikováno v:
Catalysis Today. :191-194
Investigations of the properties of supported nano-scale Au catalysts in the partial oxidation of three different polyvalent oxygen substituted compounds are presented. The relations between Au particle size and catalytic properties of Au/Al2O3 in th
Publikováno v:
Journal of Molecular Structure. :341-347
Composites containing 4- n -octyl-4′-cyanobiphenyl (8CB) either confined to nanopores of molecular sieves with very large pores or coating silica nanoparticles of aerosil type at high silica-to-8CB ratios are investigated by IR spectroscopy. Band s
Publikováno v:
Applied Catalysis A: General. 244:169-179
Static oxygen adsorption and hydrogen pulse titration of chemisorbed oxygen were checked and successfully used as tools for characterisation of the dispersity and surface area of Au/Al 2 O 3 catalysts tested in the oxidation of ethylene glycol. Using
Publikováno v:
Microporous Materials. 12:131-139
The hydrothermal stability of high-silica Y zeolites dealuminated by Al/Si substitution may be increased by alumination of the crystal surface. The externally introduced non-framework aluminum species — alkali aluminosilicates or alumina — cover
Publikováno v:
Applied Catalysis A: General. 129:189-202
Zeolite faujasite type with hexagonal structure (EMT) and zeolite faujasite types with cubic structure (FAU) were synthesized with crown ethers as templating agents. The Si/Al ratio of the assynthesized samples was determined to 3.7. The samples were
Publikováno v:
Applied Catalysis A: General. 129:57-67
Faujasite (FAU) and its hexagonal analog (EMT) was investigated in the catalytic cracking of n-heptane. Measurements were conducted with Aerosil-200 bound catalysts in an integral fixed bed reactor at 723 K. Catalytic activity is related to the conce
Publikováno v:
ChemInform. 22
29Si and 14N NMR spectroscopic investigations on the reaction of aminopropyltriethoxysilane (APTS) and Silicic acid (KS) in an acidic water solution (molar ratio APTS/KS = 1 : 1 ; CSiOa = 0.45 M; pH = 2.3) showed a strongly retarded condensation reac
Publikováno v:
ChemInform. 26
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 588:199-207
Autor:
Jörg Kärger, Andreas Schönhals, Ligia Frunza, Frank Stallmach, I. Pitsch, S. Frunza, C. Krause, Hendrik Kosslick
Molecular dynamics of water confined to some molecular sieves is studied by broadband dielectric spectroscopy (10 −2 to 10 9 Hz). Faujasite as well as molecular sieves with hexagonal cylindrical pores or cellular structure were used as confining ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c888e1199bfd7235b18cd538c0306210
https://doi.org/10.1016/s0167-2991(04)80700-6
https://doi.org/10.1016/s0167-2991(04)80700-6