Zobrazeno 1 - 10
of 28
pro vyhledávání: '"H. Fichtner-Schmittler"'
Autor:
E. Alsdorf, M. Feist, H. Fichtner-Schmittler, Th. Gross, H.-J. Jerschkewitz, U. Lohse, B. Parlitz
Publikováno v:
Adsorption Science & Technology, Vol 5 (1988)
A series of ZSM 5 samples obtained by dealumination is studied by TPD, DTA/DTG, XPS and adsorption measurements. The amount of adsorbed water at p/p 0 ≦ 0.1 and the amount of chemisorbed NH 3 corresponding to the TPD peak at 693–723 K correlate w
Externí odkaz:
https://doaj.org/article/63aab2c3713342f0b4c07e7c448d8fb7
Publikováno v:
Zeolites. 12:750-755
Zeolite A with approximately 60% of Na exchange for the cations Li, K, Mg, Ca, Sr, Cd, Zn, Co, Ni, and Mn has been subjected to hydrothermal treatments at various temperatures. The extent of hydrothermal damage has been assessed by use of the molybda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b32b137562d32df34638f601280894b9
https://doi.org/10.1016/0144-2449(92)90127-b
https://doi.org/10.1016/0144-2449(92)90127-b
Autor:
E. Alsdorf, E. Löffler, H. Fichtner-Schmittler, U. Lohse, K. H. Bergk, W. Schwieger, B. Parlitz
Publikováno v:
Zeitschrift für Physikalische Chemie. :243-258
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14732845249c9a4b380b4dd84ed78513
https://doi.org/10.1515/zpch-1990-27134
https://doi.org/10.1515/zpch-1990-27134
Autor:
N. Van Phat, E. Sonntag, Martin Bülow, E. Schierhorn, W. Lutz, Suheel Amin, Alan Dyer, I. Kosche, H. Fichtner-Schmittler
Publikováno v:
J. Chem. Soc., Faraday Trans.. 86:1899-1904
Faujasitic zeolites have been shown to acquire a hydroxide surface deposit following ion exchange with zinc solutions. This phenomenon was studied using XRD and SEM techniques. The surface deposits can be removed by aqueous ammonia. The formation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1467bee59cb6eaec785ebf04b86d8228
https://doi.org/10.1039/ft9908601899
https://doi.org/10.1039/ft9908601899
Autor:
Ursula Lohse, J. Richter-Mendau, Bodo Zibrowius, K. Szulzewsky, H. Fichtner-Schmittler, W. Pritzkow
Summary AlPO4 - 14 was prepared using piperidine as templating agent. The XRD and MAS NMR results indicate significant structural changes of this aluminophosphate during template removal and rehydration. The lattice parameters of the as-synthesized a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d00ad2a0c20afe4279573fd2933d491
https://doi.org/10.1016/s0167-2991(08)62939-0
https://doi.org/10.1016/s0167-2991(08)62939-0
Autor:
E. Alsdorf, E. Loeffler, W. Schwieger, U. Lohse, H. Fichtner-Schmittler, K. H. Bergk, B. Parlitz
Publikováno v:
ChemInform. 21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaa7d1298c11c3ff43ae723062d02fff
https://doi.org/10.1002/chin.199033027
https://doi.org/10.1002/chin.199033027
Publikováno v:
Zeitschrift für Physikalische Chemie. 271
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::329dbf69a60f9d254c3e1855b4c5bbc7
https://doi.org/10.1515/zpch-1990-0110
https://doi.org/10.1515/zpch-1990-0110
Publikováno v:
Journal of Thermal Analysis. 33:691-698
H, Li, Na, Cs, NH4, Mg and Al-ZSM 5 zeolites and H and NH4-mordenites were studied by DTA, X-ray diffraction, TPD and adsorption measurements. The stability relating to dealumination and structure destruction depends on the nature of the cation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::523bdad875ca7ce2740a9da43d7175ee
https://doi.org/10.1007/bf02138575
https://doi.org/10.1007/bf02138575
Autor:
U. Lohse, H.-J. Jerschkewitz, H. Fichtner-Schmittler, Th. Gross, Michael Feist, E. Alsdorf, B. Parlitz
Publikováno v:
Adsorption Science & Technology, Vol 5 (1988)
A series of ZSM 5 samples obtained by dealumination is studied by TPD, DTA/DTG, XPS and adsorption measurements. The amount of adsorbed water at p/p0 ≦ 0.1 and the amount of chemisorbed NH3 corresponding to the TPD peak at 693–723 K correlate wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f212fbdd001a3b7bd6297e02a538763
https://doi.org/10.1177/026361748800500204
https://doi.org/10.1177/026361748800500204
Autor:
H. Fichtner‐Schmittler, M.‐L. Menz
Publikováno v:
Kristall und Technik. 13:569-575
Structure research or quantitative phase analysis on the basis of X-ray powder data often require a knowledge of the profile of diffraction peaks. From an experimental investigation of interference lines obtained with a Jagodzinski-type Guinier camer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b1390f6b369154fbbd7525752f808bb
https://doi.org/10.1002/crat.19780130518
https://doi.org/10.1002/crat.19780130518