Synthesis and properties of γ-Ga2O3–Al2O3 solid solutions
- Authors: Afonasenko T.N.1, Leont’eva N.N.1, Talzi V.P.1, Smirnova N.S.2, Savel’eva G.G.1, Shilova A.V.1, Tsyrul’nikov P.G.1
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Affiliations:
- Institute of Hydrocarbon Processing
- Kurnakov Institute of General and Inorganic Chemistry
- Issue: Vol 91, No 10 (2017)
- Pages: 1939-1945
- Section: Structure of Matter and Quantum Chemistry
- URL: https://bakhtiniada.ru/0036-0244/article/view/169728
- DOI: https://doi.org/10.1134/S003602441710003X
- ID: 169728
Cite item
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. 71Ga 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.
About the authors
T. N. Afonasenko
Institute of Hydrocarbon Processing
Author for correspondence.
Email: atnik@ihcp.ru
Russian Federation, Omsk, 644040
N. N. Leont’eva
Institute of Hydrocarbon Processing
Email: atnik@ihcp.ru
Russian Federation, Omsk, 644040
V. P. Talzi
Institute of Hydrocarbon Processing
Email: atnik@ihcp.ru
Russian Federation, Omsk, 644040
N. S. Smirnova
Kurnakov Institute of General and Inorganic Chemistry
Email: atnik@ihcp.ru
Russian Federation, Moscow, 119991
G. G. Savel’eva
Institute of Hydrocarbon Processing
Email: atnik@ihcp.ru
Russian Federation, Omsk, 644040
A. V. Shilova
Institute of Hydrocarbon Processing
Email: atnik@ihcp.ru
Russian Federation, Omsk, 644040
P. G. Tsyrul’nikov
Institute of Hydrocarbon Processing
Email: atnik@ihcp.ru
Russian Federation, Omsk, 644040
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