C-13 NMR study of diffusion anisotropy of carbon dioxide adsorbed in nanoporous DMOF-1

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10316957" target="_blank" >RIV/00216208:11320/15:10316957 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.micromeso.2014.09.039" target="_blank" >http://dx.doi.org/10.1016/j.micromeso.2014.09.039</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.micromeso.2014.09.039" target="_blank" >10.1016/j.micromeso.2014.09.039</a>

Result language
angličtina
Original language name
C-13 NMR study of diffusion anisotropy of carbon dioxide adsorbed in nanoporous DMOF-1
Original language description
DMOF-1 (Zn-2(bdc)(2)dabco) is a metal-organic framework with tetragonal symmetry. It contains parallel one-dimensional channels with a diameter of about 0.75 nm interconnected by smaller windows. For carbon dioxide adsorbed in the nanochannels the chemical shift tensor and the diffusion tensor were investigated by C-13 NMR. The spectra acquired under static conditions reveal a powder pattern with a residual chemical shift anisotropy of = -55 ppm. The collinearity of the axisymmetrical residual chemicalshift and the diffusion tensors was utilized to assess the diffusion anisotropy via the diffusion attenuation of the C-13 PFG NMR powder pattern. The results show that carbon dioxide is highly mobile in DMOF-1. The apparent diffusion coefficient (the trace of diffusion tensor) is (6.2 +/- 1.0) x 10(-9) m(2) s(-1) at 298 K and the corresponding anisotropy expressed as D-parallel to/D-perpendicular to is approximately equal to 3. (C) 2014 Elsevier Inc. All rights reserved.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/GAP204%2F11%2F1206" target="_blank" >GAP204/11/1206: Use of PFG NMR, stochastic reconstruction and molecular simulation to estimate transport-related texture characteristics of advanced porous materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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