Synthesis and properties of γ-Ga2O3–Al2O3 solid solutions Full article
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Russian Journal of Physical Chemistry A
ISSN: 0036-0244 , E-ISSN: 1531-863X |
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| Output data | Year: 2017, Volume: 91, Number: 10, Pages: 1939-1945 Pages count : 7 DOI: 10.1134/s003602441710003x | ||||
| Tags | 71Ga NMR spectroscopy, Ga2O3–Al2O3 solid solutions, gallium oxide, mixed oxides | ||||
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Abstract:
The textural and structural properties of mixed oxides Ga2O3–Al2O3, obtained via impregnating γ-Al2O3 with a solution of Ga(NO3)3 and subsequent heat treatment, are studied. According to the results from X-ray powder diffraction, gallium ions are incorporated into the structure of aluminum oxide to form a solid solution of spinel-type γ-Ga2O3–Al2O3 up to a Ga2O3 content of 50 wt % of the total weight of the sample, accompanied by a reduction in the specific surface area, volume, and average pore diameter. It is concluded that when the Ga2O3 content exceeds 50 wt %, the β-Ga2O3 phase is observed along with γ-Ga2O3–Al2O3 solid solution. Ga and 27Al NMR spectroscopy shows that gallium replaces aluminum atoms from the tetrahedral position to the octahedral coordination in the structure of γ-Ga2O3–Al2O3.
Cite:
Afonasenko T.N.
, Leont’eva N.N.
, Talzi V.P.
, Smirnova N.S.
, Savel’eva G.G.
, Shilova A.V.
, Tsyrul’nikov P.G.
Synthesis and properties of γ-Ga2O3–Al2O3 solid solutions
Russian Journal of Physical Chemistry A. 2017. V.91. N10. P.1939-1945. DOI: 10.1134/s003602441710003x WOS Scopus РИНЦ OpenAlex
Synthesis and properties of γ-Ga2O3–Al2O3 solid solutions
Russian Journal of Physical Chemistry A. 2017. V.91. N10. P.1939-1945. DOI: 10.1134/s003602441710003x WOS Scopus РИНЦ OpenAlex
Original:
Афонасенко Т.Н.
, Леонтьева Н.Н.
, Талзи В.П.
, Смирнова Н.С.
, Савельева Г.Г.
, Шилова А.В.
, Цырульников П.Г.
Синтез и свойства твердого раствораγ-Ga2O3–Al2O3
Журнал физической химии. 2017. Т.91. №10. С.1712-1718. DOI: 10.7868/S004445371710003X РИНЦ OpenAlex
Синтез и свойства твердого раствораγ-Ga2O3–Al2O3
Журнал физической химии. 2017. Т.91. №10. С.1712-1718. DOI: 10.7868/S004445371710003X РИНЦ OpenAlex
Dates:
| Submitted: | Oct 24, 2016 |
| Published online: | Sep 20, 2017 |
| Published print: | Oct 1, 2017 |
Identifiers:
| Web of science: | WOS:000411206500017 |
| Scopus: | 2-s2.0-85029755760 |
| Elibrary: | 31059878 |
| OpenAlex: | W2756250925 |