Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Irene Pitsch"'
Autor:
Marga-Martina Pohl, Hendrik Kosslick, Nguyen Dinh Tuyen, Axel Schulz, Vu Anh Tuan, Christian Jaeger, Jens Deutsch, Irene Pitsch, Ligia Frunza
Publikováno v:
Catalysis Today. 152:54-60
The preparation of nanoporous materials with enhanced stability using an improved synthesis route using reactive inorganic silica and alumina species is reported. This way improved mesoporous molecular sieves were obtained. The synthesized aluminum s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8422e07a15552defdb1ce01dd5511fbf
https://doi.org/10.1016/j.cattod.2010.03.005
https://doi.org/10.1016/j.cattod.2010.03.005
Publikováno v:
The Journal of Physical Chemistry B. 109:9154-9159
The rotational molecular dynamics of water confined to nanoporous molecular sieves of a regular hexagonal (SBA-15) and of a foamlike pore structure was studied by dielectric spectroscopy in the frequency range from 10(-2) to 10(9) Hz and in a broad t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f631fe18b081cfdda4d24eefd973d69
https://doi.org/10.1021/jp044503t
https://doi.org/10.1021/jp044503t
Autor:
Ursula Bentrup, S. Frunza, Irene Pitsch, T. Beica, Andreas Schönhals, Hendrik Kosslick, Ligia Frunza, Irina Enache
Publikováno v:
Molecular Crystals and Liquid Crystals. 418:69-85
Confinement of 4n-octyl-4′-cyanobiphenyl to nanoporous molecular sieves with hexagonal structure of cylindrical pores or with cellular structure is studied. It was found by differential scanning calorimetry and broadband dielectric spectroscopy tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bece4d2f6efe9085ca8076f886dc987d
https://doi.org/10.1080/15421400490479145
https://doi.org/10.1080/15421400490479145
Autor:
Marga-Martina Pohl, Steffen Möhmel, Doris-Christine Uecker, Wolfgang Geßner, H. Mehner, Irene Pitsch, Angelika Brückner
Publikováno v:
Journal of Materials Chemistry. 11:2498-2503
Aluminas with Fe2O3 particles finely divided in the Al2O3 matrix were prepared via a crystalline precursor derived from ammonium dawsonite and its calcination. The precursors with Fe content between 1 and 10 wt% were synthesized by reaction of ammoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15469eda15d47626c1f4bb214b6df937
https://doi.org/10.1039/b101466h
https://doi.org/10.1039/b101466h
Autor:
Reinhard Trettin, Irene Pitsch, Barbara Parlitz, Uwe Kürschner, Wolfgang Geßner, Rainer Bertram, Ellen Schreier, D. Müller
Publikováno v:
Journal of Materials Chemistry. 7:2469-2476
Al,SiOxgels have been prepared by reaction of different inorganic aluminium compounds with silicic acid. Characterization by chemical analysis,27Al MAS NMR spectroscopy and adsorption measurements shows that the gels obtained from a mixture (pH ca. 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a241a1091f71f4a1353404af2c35304
https://doi.org/10.1039/a706083a
https://doi.org/10.1039/a706083a
Autor:
Manfred Noack, Petra Toussaint, Irene Pitsch, Dietrich Schultze, Dagobert Hoebbel, Peter Kölsch
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 612:137-142
We present four organosilic acid polymers con- taining double-4-ring silicate units cross-linked at differ- ent degree by different organosilicon bridges. BET surfa- ces were determined and adsorption isotherms of n-hem- ne, benzene, nitrogen and wat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::082f39090f025476d843681e387e50a0
https://doi.org/10.1002/zaac.19926120123
https://doi.org/10.1002/zaac.19926120123
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 596:63-72
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2425cfe115c22ffcd78cccafe823ded
https://doi.org/10.1002/zaac.19915960109
https://doi.org/10.1002/zaac.19915960109
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 592:207-216
Durch Additionsreaktion der kafigartigen Doppelvierring-(D4R-)kieselsaurederivate [(CH3)2Hsi]Si8O20 mit dem zweifach ungesattigten Divinyltetramethyldisiloxan bzw. den mehrfachfunktionellen Tetramethylcyclotetrasiloxan und Polymethylhydrogensiloxan i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4feaa8ab7618f5793adfbbb4998ffd9
https://doi.org/10.1002/zaac.19915920121
https://doi.org/10.1002/zaac.19915920121
Inorganic-organic polymers were synthesized by additive reaction of vinyl-, allyl-, and H-silylated double four-ring (D4R) silicic acids and polymeric silicic acids. The structure and properties of the hybrid polymers were investigated by means of 29
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca4831ab0b367bbe69d4ae52ae2a45a0
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 583:133-144
Mit Hilfe der 29Si-, 13C- und 1H-NMR wird gezeigt, das mit ((CH3)3SiO)2CH3SiH und (C2H5)3SiH eine vollstandige Addition der acht Vinylgruppen des kafigartig aufgebauten Kieselsaurederivats [(CH2CH)(CH3)2Si]8Si8O20 (Q8M) erfolgt. Die Addition verlauft
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d08617170baf9d286c8330c07a108186
https://doi.org/10.1002/zaac.19905830116
https://doi.org/10.1002/zaac.19905830116