Zobrazeno 1 - 10
of 79
pro vyhledávání: '"G. Lischke"'
Publikováno v:
Chemical Reviews. 100:2303-2406
Publikováno v:
Journal of Catalysis. 176:102-114
Al-, Ga-, and Fe-MCM-48 molecular sieves were synthesized and characterized by XRD, TGA,29Si-,27Al-,71Ga-MAS NMR, EPR, TPDA, and FTIR spectroscopy as well as by microcalorimetry of ammonia. Catalytic activity and selectivity were studied by the conve
Publikováno v:
Microporous Materials. 9:13-33
Al-, Ga-, and Fe-substituted mesoporous materials related to MCM-41 were hydrothermally synthesized. The samples were characterized by XRD, SEM, MIR, TA, 29Si and 27Al MAS NMR, ESR, and IR spectroscopy of adsorbed pyridine. The results reveal the sub
Publikováno v:
Journal of Catalysis. 155:1-11
Isomerization of n-heptane was studied on a series of bifunctional SAPO-based catalysts with contents of 0.1 wt% Pd. From results on temperature programmed desorption of NH3 it is deduced that the different molecular sieve structures contain nearly i
Autor:
E. Schreier, G. Lischke, Bodo Zibrowius, W. Storek, G. Oehlmann, B. Parlitz, H.‐G. Jerschkewitz, R. Eckelt
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 25
Autor:
H.-G. Jerschkewitz, B. Zibrowius, G. Lischke, B. Parlitz, G. Öhlmann, E. Schreier, Reinhard Eckelt, W. Storek
Publikováno v:
Journal of Catalysis. 132:229-243
Acidic properties of P-modified H-ZSM-5 have been characterized by means of ammonium exchange, temperature-programmed desorption of ammonia (NH3 TPD), as well as IR, 27Al MAS NMR, and 31P MAS NMR spectroscopy. The introduction of phosphorus by impreg
Autor:
G. Lischke
Publikováno v:
Structure in Complexity Theory Conference
Two complexity classes are considered to be weakly separated if they are separated but there is no immune set in the difference of the classes. It is shown that the weak separation between NP and exponential time, together with the inclusion and the
Autor:
I. Schulz, H.-G. Jerschkewitz, R. Eckelt, T. Gross, K. Wehner, G. Lischke, B. Parlitz, D. Timm, G. Öhlmann
Summary Samples of P-modified ZSM-5 type zeolite previously dealuminated by steaming at different temperatures were used as catalytically active components in the conversion of methanol to lower olefins at 560°C. Results show that dealumination at 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c92c0ecdc056d03788519e5ed1105194
https://doi.org/10.1016/s0167-2991(08)62926-2
https://doi.org/10.1016/s0167-2991(08)62926-2
Autor:
H.-G. Jerschkewitz, G. O¨hlmann, E. Schreier, E. LöFfler, Barbara Parlitz, Bodo Zibrowius, G. Lischke, R. Eckelt
Modifying a template-free synthesized and hydrothermally dealuminated ZSM-5 type zeolite with orthophosphoric acid vields catalysts for the high-temperature MTO-reaction which are superior to the merely aealuminated zeolites in respect of C 2 -C 4 -o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e15f9d9ec0bfa1bd1f5cf38f88f7c275
https://doi.org/10.1016/s0167-2991(08)62896-7
https://doi.org/10.1016/s0167-2991(08)62896-7