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Triple alloys of the Pt-Mo-W system as the thermal decomposition products of complex salts
PUBLISHED July 06, 2023 (DOI: https://doi.org/10.54985/peeref.2307p4728470)
NOT PEER REVIEWED
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Authors
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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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Conference / event
- 8th Asian Symposium on Advanced Materials (ASAM-8), July 2023 (Novosibirsk, Russian Federation)
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Poster summary
- 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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Keywords
- Complex salts, Single-source precursors, X-ray diffraction, Thermal decomposition, Multicomponent alloy, Refractory alloy
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Research areas
- Material Sciences
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References
- No data provided
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Funding
- No data provided
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Supplemental files
- No data provided
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Additional information
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- Competing interests
- No competing interests were disclosed.
- Data availability statement
- The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.
- Creative Commons license
- 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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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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