Journal
TOPICS IN CATALYSIS
Volume 63, Issue 3-4, Pages 319-327Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11244-019-01209-7
Keywords
NMR; Diffusion; Adsorption; Alcohols; Tortuosity
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Pulsed field gradient NMR diffusion measurements provide a non-invasive measure of the mass transport (self-diffusion) characteristics of liquids confined to porous catalyst materials. Here we explore the ability of this technique to probe the diffusive behaviour of a series of short-chain primary alcohols within a mesoporous catalyst support material; through the comparison of our results with highly surface-sensitive NMR relaxation data, we show that the evaluation of bulk-pore diffusion dynamics may provide a simple and indirect method to access and explore surface interaction phenomena occurring at the catalyst-liquid interface.
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