H-1-P-31 HETCOR NMR elucidates the nature of acid sites in zeolite HZSM-5 probed with trimethylphosphine oxide

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