Structure of С@Al2O by Multinuclear Solid-State NMR Spectroscopy Full article
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Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 2016, Volume: 57, Number: 2, Pages: 354-360 Pages count : 7 DOI: 10.1134/S0022476616020165 | ||||
| Tags | 1Н, 27Al NMR, aluminum oxide nanoparticles, graphene coating, γ-Al2O3, δ-Al2O3, ОН groups | ||||
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 14-23-00037 |
Abstract:
The 27Al, 1H MAS NMR method is used to study initial nanosized metastable aluminum oxides of a pseudoboehmite series (γ- and δ-Al2O3) after being coated with graphene (С@Al2O3) and annealed in the air (С@Al2O3-Т). It is demonstrated that aluminum nanoparticles coated with graphene and annealed at high temperatures (to 750°C for γ and 1180°C for δ) preserve their phase composition but differ from initial oxides by a very low concentration of defects (ОН groups). After the annealing of the graphene coating the hydroxyl cover of oxides is reduced, however, the set of ОН groups differs greatly from that of the initial oxides. Only one type of terminal ОН groups with a ~0.2 ppm shift and one type of bridging μ2-ОН groups with a 1.8 ppm shift for γ-Al2O3 from OH-μ2-AlVAl n and 2.1 ppm for δ-Al2O3 OH-μ2-AlIVAl n are observed. The data obtained make it possible to characterize in detail the δ-Al2O3 pure phase.
Cite:
Khabibulin D.F.
, Volodin A.M.
, Lapina O.B.
Structure of С@Al2O by Multinuclear Solid-State NMR Spectroscopy
Journal of Structural Chemistry. 2016. V.57. N2. P.354-360. DOI: 10.1134/S0022476616020165 WOS Scopus РИНЦ ANCAN OpenAlex
Structure of С@Al2O by Multinuclear Solid-State NMR Spectroscopy
Journal of Structural Chemistry. 2016. V.57. N2. P.354-360. DOI: 10.1134/S0022476616020165 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Хабибулин Д.Ф.
, Володин А.М.
, Лапина О.Б.
Строение С@Al2O3 по данным многоядерной ЯМР спектроскопии в твердом теле
Журнал структурной химии. 2016. Т.57. №2. С.368-374. DOI: 10.15372/JSC20160216RSCI РИНЦ OpenAlex
Строение С@Al2O3 по данным многоядерной ЯМР спектроскопии в твердом теле
Журнал структурной химии. 2016. Т.57. №2. С.368-374. DOI: 10.15372/JSC20160216RSCI РИНЦ OpenAlex
Dates:
| Submitted: | Sep 23, 2015 |
| Published print: | Mar 1, 2016 |
| Published online: | May 25, 2016 |
Identifiers:
| Web of science: | WOS:000376759800016 |
| Scopus: | 2-s2.0-84971673895 |
| Elibrary: | 27098703 |
| Chemical Abstracts: | 2016:865507 |
| Chemical Abstracts (print): | 171:296417 |
| OpenAlex: | W2404845446 |