Zobrazeno 1 - 10
of 22
pro vyhledávání: '"U. Oberhagemann"'
Autor:
Annett Dr. Gräser, Frank Stallmach, Jörg Kärger, Stefan Spange, U. Oberhagemann, C. Krause, M. Jeschke
Publikováno v:
Microporous and Mesoporous Materials. :745-753
Pulsed field gradient NMR is able to monitor the displacement of guest molecules in porous materials without interfering with the microstructure and microdynamics of the system under study. Using this technique, the propagation pattern of benzene, n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d99ff20d4a360f7612ab145aa5538ad
https://doi.org/10.1016/s1387-1811(01)00256-6
https://doi.org/10.1016/s1387-1811(01)00256-6
Autor:
Colin A. Fyfe, Silke Vortmann, Kirsten Krink, Ingo Wolf, Jordi Rius, U. Oberhagemann, Hermann Gies, Bernd Marler, Parwis Bayat
Publikováno v:
Microporous and Mesoporous Materials. 21:183-197
In the recent past structure determination of microporous materials has experienced considerable developments in methodology. The FOCUS method: high resolution powder diffraction data used for direct method structure solution in combination with crys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4add7a3c72228635ce49e30f154fa39e
https://doi.org/10.1016/s1387-1811(98)00003-1
https://doi.org/10.1016/s1387-1811(98)00003-1
Publikováno v:
Angewandte Chemie. 108:3041-3044
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9349b9db8acde651da63b9307e669cf9
https://doi.org/10.1002/ange.19961082343
https://doi.org/10.1002/ange.19961082343
Publikováno v:
Scopus-Elsevier
Nine organic sorbates of different scattering power were adsorbed into the mesopores of calcined, high quality B-MCM-41. The intensity of the observed X-ray diffraction peaks of the loaded samples results from the difference in the scattering power (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d17c389948dd2b3bff233f049c162a36
https://doi.org/10.1016/0927-6513(96)00016-8
https://doi.org/10.1016/0927-6513(96)00016-8
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 51:840-845
The viability of solving the structure type of zeolitic and layered materials applying multisolution direct methods to low-resolution (~2.2 A) powder diffraction data is shown. The phases are refined with the tangent formula derived from Patterson-fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c1f0d478837076cf6e482f48e20862c
https://doi.org/10.1107/s0108767395005800
https://doi.org/10.1107/s0108767395005800
Publikováno v:
ChemInform. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03dfb07343545beb3ee4964715971df5
https://doi.org/10.1002/chin.199711021
https://doi.org/10.1002/chin.199711021
RUB-22, a new tetramethylammonium (TMA, (N(CH 3 ) 4 ) silicate, was synthesised in the system TMAOH/SiO 2 /H 2 O/(CH 3 OH). Typically a reaction mixture consisting of 2.8 tetramethylammonium hydroxide / 1 – 3.8 tetramethylorthosilicate / 55.5 H 2 O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cd9ee72b95f77a9c0b158e72f728dd5
https://doi.org/10.1016/s0167-2991(07)80839-1
https://doi.org/10.1016/s0167-2991(07)80839-1
Publisher Summary MCM-41 is a novel mesoporous material first described by Kresge et al. in 1992. MCM-41 has channel like pores of uniform size that are arranged in a regular hexagonal pattern. The pore diameters are in the range of 25 to 100 A depen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a79a17b03e422ee4853b7e32b2434c91
https://doi.org/10.1016/s0167-2991(06)81065-7
https://doi.org/10.1016/s0167-2991(06)81065-7
Rub-10, a porous borosilicate with a novel framework structure was synthesized in the system SiO 2 /B 2 O 3 /H 2 O/Template using tetramethylammonium hydroxide, hexyltrimethylammonium hydroxide and tetramethylhexanediamine as templates. Rub-10 contai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7715bc0643b4ec4deecda9fdb55b9d85
https://doi.org/10.1016/s0167-2991(08)64143-9
https://doi.org/10.1016/s0167-2991(08)64143-9
Publikováno v:
Scopus-Elsevier
B-MCM-41 is a boron containing mesoporous material. It was synthesized in the system SiO2/B2O3/H2O/template using micell like species of quarternary ammonium salts, N(CH3)3R+X−, with different chain lengths of R as templates. In the as synthesized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b0e626a7c5c8a09e1145c8005877ba1
http://www.scopus.com/inward/record.url?eid=2-s2.0-0030146859&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0030146859&partnerID=MN8TOARS