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Triple alloys of the Pt-Mo-W system as the thermal decomposition products of complex salts
发表日期 July 06, 2023 (DOI: https://doi.org/10.54985/peeref.2307p4728470)
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作者
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Polina Serebrennikova1 , Varvara Lagunova2 , Andrey Zadesenets2 , Sergey Gromilov1
- Novosibirsk State University; Nikolaev Institute of Inorganic Chemistry
- Nikolaev Institute of Inorganic Chemistry
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会议/活动
- 8th Asian Symposium on Advanced Materials (ASAM-8), July 2023 (Novosibirsk, Russian Federation)
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海报摘要
- The co-crystallization of Na2WO42H2O with Na2MoO42H2O and [Pt(NH3)4](NO3)2 from a water solution results in the formation of single-phase [Pt(NH3)4](MoO4)x(WO4)1-x solid solution (x vary in the 0.5-0.6 interval). According to the X-ray diffraction analysis of one single crystal, the parameters of the tetragonal unit cell (space group I41/amd, Z = 4) is: a = 7.4490(3); c = 15.5150(11) Å with the x = 0.592(7). The obvious anisotropy of the crystal thermal behavior is shown: with an overall increase in the volume of the tetragonal unit cell by 1.03%, parameter a increases by 0.67%, while parameter c decreases by 0.32%. The thermal decomposition of [Pt(NH3)4](MoO4)0.6(WO4)0.4 was performed in H2 atmospheres at 1000 °C. The ex situ X-ray and scanning electron microscopy studies of thermal decomposition product shows the formation of single-phase HCP-alloy of Pt0.47Mo0.34W0.19 approximate composition.
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关键词
- Complex salts, Single-source precursors, X-ray diffraction, Thermal decomposition, Multicomponent alloy, Refractory alloy
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研究领域
- Material Sciences
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参考文献
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基金
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补充材料
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附加信息
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- 利益冲突
- No competing interests were disclosed.
- 数据可用性声明
- The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.
- 知识共享许可协议
- Copyright © 2023 Serebrennikova et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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引用
Serebrennikova, P., Lagunova, V., Zadesenets, A., Gromilov, S. Triple alloys of the Pt-Mo-W system as the thermal decomposition products of complex salts [not peer reviewed]. Peeref 2023 (poster).
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