NMR diffusometry with guest molecules in nanoporous materials.
作者： Seungtaik Hwang , Jörg Kärger
DOI: 10.1016/J.MRI.2018.08.010
关键词: Mass transfer 、 Chemical physics 、 Characterisation of pore space in soil 、 Molecular diffusion 、 Molecule 、 Nanoporous 、 Crystal 、 Materials science 、 Pulsed field gradient
摘要: Abstract Application of pulsed field gradient (PFG) NMR to studying molecular diffusion in beds nanoporous materials has given rise novel insights and paradigm shifts our understanding, which are reviewed the present contribution. This gain information is, particular, related ability PFG discriminate between various mechanisms affecting mass transfer such systems. Examples include, inter alia, sensitivity toward transport enhancement pore hierarchies as well resistances acting, addition diffusional resistance genuine space, either on crystal surfaces or their interior.
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