Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Helga Zimmer"'
Publikováno v:
Applied Catalysis A: General. 191:141-151
Pt-black, 6% Pt/SiO2 and a 0.6% industrial Pt/A12O3 catalysts were compared in reactions of n-nonane. The main products were olefins and fragments. Of the three samples, Pt/A12O3 showed the lowest degradative activity. Products of direct C6- and C5-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa994b8b9e78c4ad18faa9ce50c44a05
https://doi.org/10.1016/s0926-860x(99)00315-4
https://doi.org/10.1016/s0926-860x(99)00315-4
Publikováno v:
Journal of Catalysis. 141:648-659
The reactions of five heptane isomers (n-heptane, 3-methylhexane, 3-ethylpentane, 2,4-dimethyl-pentane, and 3,3 dimethylpentane) are compared over a 6.3% Pt/SiO[sub 2] catalyst (EUROPT-1) as a function of the hydrogen pressure between 6 and 60 kPa. P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40d7d776ebd90f943c5379fc948b0e0c
https://doi.org/10.1006/jcat.1993.1170
https://doi.org/10.1006/jcat.1993.1170
ChemInform Abstract: Skeletal Reactions of Heptane Isomers over EUROPT-1: A Comparison with Pt Black
Publikováno v:
ChemInform. 24
The reactions of five heptane isomers (n-heptane, 3-methylhexane, 3-ethylpentane, 2,4-dimethyl-pentane, and 3,3 dimethylpentane) are compared over a 6.3% Pt/SiO[sub 2] catalyst (EUROPT-1) as a function of the hydrogen pressure between 6 and 60 kPa. P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::654c771430a0bd3af5eca28315bf2327
https://doi.org/10.1002/chin.199338097
https://doi.org/10.1002/chin.199338097
Publikováno v:
Journal of Molecular Catalysis. 25:99-108
The activity and selectivity of the Pt-H system in hydrocarbon reactions was investigated with Pt-black, Pt/Al 2 O 3 and Pt/SiO 2 (Euro Pt 1). The surface concentration of hydrogen was changed by varying the hydrogen pressure while maintaining consta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c67860bb5e8d4fb44b10ee1152ab89ab
https://doi.org/10.1016/0304-5102(84)80034-6
https://doi.org/10.1016/0304-5102(84)80034-6
Publikováno v:
Journal of Catalysis. 119:146-160
Pt-black (Pt-473 and Pt-633) reduced in aqueous solution with HCHO was sintered at 473 and 633 K in hydrogen. Electron micrographs show a considerable sintering, especially at 633 K. High-resolution EM indicates the presence of agglomerates of rounde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51c8bd2faa0bf8d4c3d3dec05a116eb5
https://doi.org/10.1016/0021-9517(89)90142-5
https://doi.org/10.1016/0021-9517(89)90142-5
Publikováno v:
The Journal of Physical Chemistry. 90:4758-4764
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d688478e81b6cf59eaf74926f96a7cfb
https://doi.org/10.1021/j100411a010
https://doi.org/10.1021/j100411a010
Autor:
Helga Zimmer, Zoltán Paál
Publikováno v:
Reaction Kinetics and Catalysis Letters. 39:227-233
Ring opening of ethylcyclopentane (ECP) was studied over 6.3% Pt/SiO2 (EUROPT-1) and 10% Pt/Al2O3, as a function of the hydrogen pressure. Both catalysts gave almost nonselective ring opening. Pt/Al2O3 produced also olefins, more side dealkylation an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87b0d157bc4a78f87e3755c13a16e8d6
https://doi.org/10.1007/bf02071332
https://doi.org/10.1007/bf02071332
Publikováno v:
Zeitschrift für Physikalische Chemie. 164:1135-1144
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d8e256a05c08d54e26a93cdd8dc59f5
https://doi.org/10.1524/zpch.1989.164.part_2.1135
https://doi.org/10.1524/zpch.1989.164.part_2.1135
Publikováno v:
Applied Catalysis. 7:295-306
The gas phase dehydrogenation of tetralin under atmospheric pressure was studied at 660 K using reduced, reduced and sulphided or directly sulphided iron oxide catalysts. It was found that, in tetralin conversion, metallic iron - possesses activity f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e933e4248a0ff6fc345dab76c89944a1
https://doi.org/10.1016/0166-9834(83)80029-3
https://doi.org/10.1016/0166-9834(83)80029-3
Autor:
Zoltán Paál, Helga Zimmer
Publikováno v:
Journal of Molecular Catalysis. 51:261-278
Cyclopentane, methyl-, ethyl-, 1,1-, 1,2- and 1,3-dimethylcyclopentanes were reacted over Pt black and Pt/SiO 2 (EUROPT-1) in a static-circulation reactor at 603 K. Ring opening products, olefins, aromatics and hydrogenolysis products were observed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37f1c25f22e95b46d3ed50edbb436244
https://doi.org/10.1016/0304-5102(89)80005-7
https://doi.org/10.1016/0304-5102(89)80005-7