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High-Pressure Synthesis of a Gallium Oxonitride with a Spinel-Type Structure

Kinski, Isabel and Miehe, Gerhard and Heymann, Gunter and Theissmann, Ralf and Riedel, Ralf and Huppertz, Hubert (2005):
High-Pressure Synthesis of a Gallium Oxonitride with a Spinel-Type Structure.
In: Zeitschrift für Naturforschung B, de Gruyter, pp. 831-836, 60, (8), ISSN 0932-0776,
DOI: 10.1515/znb-2005-0803,
[Online-Edition: https://doi.org/10.1515/znb-2005-0803],
[Article]

Abstract

The new compound Ga2.81O3.57N0.43 was crystallized under high-pressure / high-temperature conditions in a spinel-type structure from a prestructured gallium oxonitride ceramic, which was obtained from the single-source molecular precursor [Ga(OtBu)2NMe2]2 by thermal treatment in an ammonia atmosphere. The optimized precursor-derived gallium oxonitride ceramic remains nanocrystalline up to 600 °C and can be transformed at 7 GPa and 1100 °C into the crystalline phase Ga2.81O3.57N0.43. The structure, homogeneity, and nitrogen to oxygen ratio were determined using TEM coupled with an electron energy loss spectrometer (EELS) and an energy dispersive X-ray (EDX) spectrometer. For phase analysis and structure confirmation, X-ray powder diffraction data were measured.

Item Type: Article
Erschienen: 2005
Creators: Kinski, Isabel and Miehe, Gerhard and Heymann, Gunter and Theissmann, Ralf and Riedel, Ralf and Huppertz, Hubert
Title: High-Pressure Synthesis of a Gallium Oxonitride with a Spinel-Type Structure
Language: English
Abstract:

The new compound Ga2.81O3.57N0.43 was crystallized under high-pressure / high-temperature conditions in a spinel-type structure from a prestructured gallium oxonitride ceramic, which was obtained from the single-source molecular precursor [Ga(OtBu)2NMe2]2 by thermal treatment in an ammonia atmosphere. The optimized precursor-derived gallium oxonitride ceramic remains nanocrystalline up to 600 °C and can be transformed at 7 GPa and 1100 °C into the crystalline phase Ga2.81O3.57N0.43. The structure, homogeneity, and nitrogen to oxygen ratio were determined using TEM coupled with an electron energy loss spectrometer (EELS) and an energy dispersive X-ray (EDX) spectrometer. For phase analysis and structure confirmation, X-ray powder diffraction data were measured.

Journal or Publication Title: Zeitschrift für Naturforschung B
Volume: 60
Number: 8
Publisher: de Gruyter
Uncontrolled Keywords: High-Pressure, Gallium Oxonitride, Spinel Structure Type
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science > Structure Research
Date Deposited: 17 Dec 2018 12:04
DOI: 10.1515/znb-2005-0803
Official URL: https://doi.org/10.1515/znb-2005-0803
Funders: We gratefully acknowledge the continuous support of these investigations by Prof. Dr. W. Schnick, Department Chemie und Biochemie of the Ludwig-Maximilians-Universität München (Germany).
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