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Random Distribution of EFG Parameters in 27Al MAS NMR Spectra of AlOx/SiO2 Catalysts and Related Systems Full article

Journal Applied Magnetic Resonance
ISSN: 0937-9347 , E-ISSN: 1613-7507
Output data Year: 2016, Volume: 47, Number: 11, Pages: 1193-1205 Pages count : 13 DOI: 10.1007/s00723-016-0837-x
Tags Alumina; Aluminum; Catalysts; Magic angle spinning; Nuclear magnetic resonance spectroscopy
Authors Shubin Aleksandr A. 1,2 , Terskikh Victor V. 3 , Papulovskiy Evgeniy 1,2 , Lapina Olga B. 1,2
Affiliations
1 Boreskov Institute of Catalysis, pr. Lavrentieva, 5, Novosibirsk 630090, Russia
2 Novosibirsk State University, Pirogova, 2, Novosibirsk 630090, Russia
3 Department of Chemistry, University of Ottawa, Ottawa, ON K1N6N5, Canada

Funding (1)

1 Russian Science Foundation 14-23-00037

Abstract: 27Al magic angle spinning (MAS) nuclear amgnetic resonance (NMR) spectroscopy is one of the primary tools in the structural characterization of a variety of alumina-based catalysts. However, the controversy still exists on the proper interpretation of 27Al NMR spectra due to difficulties associated with distribution of NMR parameters and by the experimental limitations. In this work, we present analysis of the 27Al MAS NMR spectra containing signals from Al(4), Al(5) and Al(6) species on the surface of AlOx/SiO2 catalysts and demonstrate several characteristic tell-tale properties of these signals caused by the random distribution of the EFG tensor parameters and by the partial excitation of NMR spectra.
Cite: Shubin A.A. , Terskikh V.V. , Papulovskiy E. , Lapina O.B.
Random Distribution of EFG Parameters in 27Al MAS NMR Spectra of AlOx/SiO2 Catalysts and Related Systems
Applied Magnetic Resonance. 2016. V.47. N11. P.1193-1205. DOI: 10.1007/s00723-016-0837-x WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: Aug 3, 2016
Published online: Sep 21, 2016
Published print: Nov 1, 2016
Identifiers:
Web of science: WOS:000386694200003
Scopus: 2-s2.0-84988664619
Elibrary: 27573607
Chemical Abstracts: 2016:1553171
Chemical Abstracts (print): 170:74057
OpenAlex: W2521527290
Citing:
DB Citing
Web of science 1
Scopus 2
Elibrary 1
OpenAlex 2
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