Journal ArticleDOI
Long-time limit of the self-correlation-function of one-dimensional diffusion.
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This article is published in Physical Review E.The article was published on 1993-02-01. It has received 47 citations till now. The article focuses on the topics: Correlation function (statistical mechanics).read more
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Single-file diffusion of colloids in one-dimensional channels
TL;DR: The diffusive behavior of colloidal particles which are confined to one-dimensional channels generated by scanning optical tweezers is studied and the mean-square displacement is found to scale as t(1/2), which is expected for systems where single-file diffusion occurs.
Journal ArticleDOI
Single-File Diffusion Observation
K. Hahn,Jörg Kärger,Volker Kukla +2 more
TL;DR: The diffusivity of an isolated molecule estimated from the mobility in the single-file system is 2 orders of magnitude larger than the largest intracrystalline diffusivities in zeolites so far observed, supported by both the observed concentration dependence and molecular dynamics simulations.
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NMR Studies of Single-File Diffusion in Unidimensional Channel Zeolites
Volker Kukla,Jan Kornatowski,Dirk Demuth,Irina Girnus,Harry Pfeifer,Lovat V.C. Rees,Stefan Schunk,Klaus K. Unger,Jörg Kärger +8 more
TL;DR: Diffusion measurements made with pulsed field gradient nuclear magnetic resonance (NMR) in unidimensional pore systems (zeolites AlPO4-5 and Theta-1) reflect the expected time dependence of single-file diffusion.
Journal ArticleDOI
Single-file diffusion of confined water inside SWNTs: an NMR study.
Anindya Das,S. Jayanthi,Handiganadu Srinivasa Murthy Vinay Deepak,K. V. Ramanathan,Anil Kumar,Chandan Dasgupta,A. K. Sood +6 more
TL;DR: A nuclear magnetic resonance (NMR) study of confined water inside approximately 1.4 nm diameter single-walled carbon nanotubes (SWNTs) shows that the mean squared displacement varies as the square root of time, predicted for single-file diffusion in a one-dimensional channel.
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Measurement of Diffusion in Zeolites—A Never Ending Challenge?
TL;DR: In this paper, the main problems associated with the determination and interpretation of molecular diffusion in zeolites are discussed, and it is shown that the diffusivities may most decisively depend on the relevant space and time scales of observation, as well as on the physical state under which the measurements are carried out.