Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Christian Chmelik"'
Autor:
Hannes Preißler-Kurzhöfer, Andrei Kolesnikov, Marcus Lange, Jens Möllmer, Oliver Erhart, Merten Kobalz, Seungtaik Hwang, Christian Chmelik, Harald Krautscheid, Roger Gläser
Publikováno v:
Nanomaterials, Vol 13, Iss 3, p 601 (2023)
The rate of sorption of n-butane on the structurally flexible metal-organic framework [Cu2(H-Me-trz-ia)2], including its complete structural transition between a narrow-pore phase and a large-pore phase, was studied by sorption gravimetry, IR spectro
Externí odkaz:
https://doaj.org/article/44a5cf7671ca49e68f36f8fa290c1a7e
Autor:
Jörg Kärger, Ryong Ryoo, Suresh K. Bhatia, Stefan Kaskel, Rustem Valiullin, Christian Chmelik, Dirk Mehlhorn, Tobias Titze, Franz Schmidt, Mauricio Rincon Bonilla
Publikováno v:
Materials, Vol 6, Iss 7, Pp 2662-2688 (2013)
The presence of mesopores in the interior of microporous particles may significantly improve their transport properties. Complementing previous macroscopic transient sorption experiments and pulsed field gradient NMR self-diffusion studies with such
Externí odkaz:
https://doaj.org/article/5714db0d68be49fa896f39b7571ce1e1
Autor:
Jörg Kärger, Douglas M. Ruthven, Christian Chmelik, Florian Hibbe, Tomas Binder, Laurent Gueudré
Publikováno v:
Materials, Vol 5, Iss 4, Pp 721-740 (2012)
Because of the small particle size, orientation-dependent diffusion measurements in microporous materials remains a challenging task. We highlight here the potential of micro-imaging by interference microscopy in a case study with MFI-type crystals i
Externí odkaz:
https://doaj.org/article/97d4783b20044d4daf272181793dbbf8
Autor:
Seungtaik Hwang, Arun Gopalan, Maximilian Hovestadt, Frank Piepenbreier, Christian Chmelik, Martin Hartmann, Randall Q. Snurr, Jörg Kärger
Publikováno v:
Molecules, Vol 23, Iss 3, p 668 (2018)
Molecular diffusion is commonly found to slow down with increasing molecular size. Deviations from this pattern occur in some host materials with pore sizes approaching the diameters of the guest molecules. A variety of theoretical models have been s
Externí odkaz:
https://doaj.org/article/1ff113eb9a894b24819f49612a8631f1
Autor:
Oksana Smirnova, Seungtaik Hwang, Roman Sajzew, Aaron Reupert, Vahid Nozari, Samira Savani, Christian Chmelik, Lothar Wondraczek, Jörg Kärger, Alexander Knebel
Porous materials, such as metal-organic frameworks emerge to solve important quests of our modern society, such as CO2 sequestration. Zeolitic Imidazolate Frameworks (ZIFs) can undergo a glass transition to form ZIF-glasses; they combine the liquid h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1433ff6786da4a29710f19ad785ebf5c
https://doi.org/10.26434/chemrxiv-2023-b8nnx
https://doi.org/10.26434/chemrxiv-2023-b8nnx
Publikováno v:
Diffusive Spreading in Nature, Technology and Society ISBN: 9783031059452
Diffusive Spreading in Nature, Technology and Society ISBN: 9783319677972
Diffusive Spreading in Nature, Technology and Society ISBN: 9783319677972
Nanoporous materials are employed in numerous technologies of matter upgrading by mass separation and conversion (heterogeneous catalysis). The chapter deals with the measurement of guest diffusion in such materials and, thus, with the determination
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::726cd39d52a9c0f4acc1d7cdc24cabca
https://doi.org/10.1007/978-3-031-05946-9_10
https://doi.org/10.1007/978-3-031-05946-9_10
Autor:
Murray Moinester, Christian Chmelik, Marija Avramovska, Arkadiusz Derkowski, Vincent J. Hare, Artur Kuligiewicz, Dieter Freude, Jörg Kärger, Jürgen Haase, Alexander Fantalkin
Publikováno v:
Journal of the American Ceramic Society. 104:5328-5340
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::631efb7bd95329169e8cb519a0569b68
https://doi.org/10.1111/jace.17753
https://doi.org/10.1111/jace.17753
Publikováno v:
Adsorption. 27:819-840
Microimaging on the basis of, respectively, interference microscopy and IR microscopy permit the observation of the distribution of guest molecules in nanoporous solids and their variation with time. Thus attainable knowledge of both concentration gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0eb5dc6fb4b7dc84c6c9f0dd38281df0
https://doi.org/10.1007/s10450-020-00279-4
https://doi.org/10.1007/s10450-020-00279-4
Autor:
Ryan P. Lively, Fengyi Zhang, Christian Chmelik, Lei Fan, Sergey Vasenkov, Amineh Baniani, Richelle Lyndon, Evan M. Forman, Erkang Zhou
Publikováno v:
The Journal of Physical Chemistry C. 123:16813-16822
Multinuclear pulsed field gradient (PFG) NMR was used to study the self-diffusion of ethane and ethylene inside loosely packed beds of zeolitic imidazolate framework-11 (ZIF-11) crystals. Diffusion measurements were performed at different temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d89a73a77b5bbe96d80bcb6197c9656
https://doi.org/10.1021/acs.jpcc.9b03933
https://doi.org/10.1021/acs.jpcc.9b03933
Autor:
Yanshuo Li, Nina Dvoyashkina, Hua Jin, Alexander G. Stepanov, Christian Chmelik, Daniil I. Kolokolov, Jörg Kärger, Jürgen Haase, Sergei S. Arzumanov, Dieter Freude
Publikováno v:
The Journal of Physical Chemistry C. 123:1904-1912
Within the family of metal–organic frameworks, the zeolite–imidazolate framework (ZIF) of type ZIF-8 is among the most promising materials with potential application for hydrocarbon separation, not...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10589450f75cad98e5fdbfb3d84fc04c
https://doi.org/10.1021/acs.jpcc.8b11673
https://doi.org/10.1021/acs.jpcc.8b11673