Search Results - "Kaerger, Joerg"

In-depth study of surface resistances in nanoporous materials by microscopic diffusion measurement by Kärger, Jörg

“…After colliding with the external surface, only a fraction of molecules is able to surmount the surface barrier and to get into the genuine pore space…”
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Transport Phenomena in Nanoporous Materials by Karger, Jörg

“…Diffusion, that is, the irregular movement of atoms and molecules, is a universal phenomenon of mass transfer occurring in all states of matter. It is of equal…”
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Douglas M. Ruthven: In Memoriam of a Great Scholar and a Caring Friend by Kärger, Jörg

“…In September 2021, Professor Douglas Morris Ruthven, one of the pioneers of sorption research, passed away completely unexpectedly. The many research areas he…”
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Leipzig, Berlin and Hannover: Three Stations of a Beneficial Cooperation by Kärger, Jörg

“…This essay looks back at the three stations of Jürgen Caro's career, starting with his time as a diploma student of Chemistry (1974–1975) and PhD student in…”
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Jens Weitkamp – in Memoriam by Kärger, Jörg

“…Prof. Jens Weitkamp was a pioneer in the field of zeolite catalysis, especially for applications such as hydrocracking, isomerization, alkylation, but also…”
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The predictive power of classical transition state theory revealed in diffusion studies with MOF ZIF-8 by Chmelik, Christian, Kärger, Jörg

“…Knowledge of the adsorption isotherm is demonstrated to be sufficient for predicting the concentration dependence of the diffusivity of light hydrocarbons in…”
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NMR diffusometry with guest molecules in nanoporous materials by Hwang, Seungtaik, Kärger, Jörg

“…Application of pulsed field gradient (PFG) NMR to studying molecular diffusion in beds of nanoporous materials has given rise to novel insights and paradigm…”
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Correlating surface permeability with intracrystalline diffusivity in nanoporous solids by Heinke, Lars, Kärger, Jörg

“…The rates of uptake and release of guest molecules in nanoporous solids are often strongly influenced or even controlled by transport resistances at the…”
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Structural analysis of hierarchically organized zeolites by Mitchell, Sharon, Pinar, Ana B., Kenvin, Jeffrey, Crivelli, Paolo, Kärger, Jörg, Pérez-Ramírez, Javier

“…Hierarchically organized zeolites are materials retaining the crystalline order and associated functionality of bulk zeolites while also integrating a…”
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Diffusion anomaly in nanopores as a rich field for theorists and a challenge for experimentalists by Brandani, Stefano, Hwang, Seungtaik, Kärger, Jörg, Mangano, Enzo

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Surface barriers and symmetry of adsorption and desorption processes by Sastre, German, Kärger, Jörg, Ruthven, Douglas M.

“…Adsorption and desorption of hydrocarbons in a realistic model (2496 atoms) of ZSM-5 zeolite (MFI), including an external surface and a reservoir for…”
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Molecular Dynamics Study of Diffusion and Surface Permeation of Benzene in Silicalite by Sastre, German, Kärger, Jörg, Ruthven, Douglas M

“…Molecular dynamics simulations have been carried out to determine the uptake and release rates for benzene in an idealized crystal of silicalite (the pure…”
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From computer design to gas separation by Caro, Jürgen, Kärger, Jörg

“…The presence of one-dimensional MEL intergrowths in two-dimensional MDI zeolite nanosheets, inferred from experimental and theoretical analysis, allows for…”
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Precise control over gas-transporting channels in zeolitic imidazolate framework glasses by Smirnova, Oksana, Hwang, Seungtaik, Sajzew, Roman, Ge, Lingcong, Reupert, Aaron, Nozari, Vahid, Savani, Samira, Chmelik, Christian, Reithofer, Michael R., Wondraczek, Lothar, Kärger, Jörg, Knebel, Alexander

“…Porous metal–organic frameworks have emerged to resolve important challenges of our modern society, such as CO 2 sequestration. Zeolitic imidazolate frameworks…”
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Diffusion in nanopores: correlating experimental findings with “first-principles” predictions by Hwang, Seungtaik, Kärger, Jörg

“…Measurement of molecular diffusion in nanoporous host materials, which are typically inhomogeneous and anisotropic, often involves an intricate web of factors…”
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Microimaging of transient guest profiles to monitor mass transfer in nanoporous materials by Kärger, Jörg, Binder, Tomas, Chmelik, Christian, Hibbe, Florian, Krautscheid, Harald, Krishna, Rajamani, Weitkamp, Jens

“…Microimaging techniques, such as interference and infrared microscopy, can be used as a tool to directly monitor guest profiles within nanoporous materials…”
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Pulsed field gradient NMR diffusion measurement in nanoporous materials by Kärger, Jörg, Avramovska, Marija, Freude, Dieter, Haase, Jürgen, Hwang, Seungtaik, Valiullin, Rustem

“…Labeling in diffusion measurements by pulsed field gradient (PFG) NMR is based on the observation of the phase of nuclear spins acquired in a constant magnetic…”
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Diffusion Path Reversibility Confirms Symmetry of Surface Barriers by Sastre, German, Kärger, Jörg, Ruthven, Douglas M

“…The mass transfer resistance encountered by guest molecules entering or leaving a microporous host material (the “surface barrier”) is often comparable with or…”
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Diffusion in nanopores: inspecting the grounds by Kärger, Jörg, Ruthven, Douglas M., Valiullin, Rustem

“…This paper provides a general overview of the phenomenon of guest diffusion in nanoporous materials. It introduces the different types of diffusion measurement…”
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Single‐Molecule and Ensemble Diffusivities in Individual Nanopores with Spatially Dependent Mobility by Rybka, Julia, Kärger, Jörg, Tallarek, Ulrich

“…We investigated single‐molecule and ensemble diffusivities in a silica nanopore with a chemically modified surface by molecular dynamics simulations. Solutes…”
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