H-1-P-31 HETCOR NMR elucidates the nature of acid sites in zeolite HZSM-5 probed with trimethylphosphine oxide
authors Bornes, C; Sardo, M; Lin, Z; Amelse, J; Fernandes, A; Ribeiro, MF; Geraldes, C; Rocha, J; Mafra, L
nationality International
journal CHEMICAL COMMUNICATIONS
keywords SOLID-STATE NMR; P-31 NMR; CATALYSTS
abstract Two-dimensional H-1-P-31 heteronuclear correlation NMR of trimethylphosphine oxide (TMPO) adsorbed in zeolites, in tandem with DFT calculations, challenges previous one-dimensional P-31 NMR assignments, enabling the unambiguous discrimination of Bronsted and Lewis acid sites, extending the understanding of TMPO:Bronsted complexes formed with distinct stoichiometries at the HZSM-5 zeolite surface, and the proton-transfer mechanism.
publisher ROYAL SOC CHEMISTRY
issn 1359-7345
isbn 1364-548X
year published 2019
volume 55
issue 84
beginning page 12635
ending page 12638
digital object identifier (doi) 10.1039/c9cc06763a
web of science category Chemistry, Multidisciplinary
subject category Chemistry
unique article identifier WOS:000490779100007
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journal impact factor 5.996
5 year journal impact factor 5.818
category normalized journal impact factor percentile 81.073
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