Abstract
Vacuum-arc synthesis of nanopowders based on zirconia and metal-organic framework structures was carried out using low-pressure arc discharge plasma. The obtained material was studied using a number of techniques (XRD, IR, TEM, DTA). The TEM technique showed that Zr-MOF represents strongly agglomerated particles of nearly spherical shape. The image clearly shows the crystal ordering of the nanoparticles with a large (up to 2 nm) lattice constant. The sizes of particles vary in the range from 5 to 30 nm. The mean particle size is 9.4 nm. XRD showed that the fraction of ZrO relative to Zr-MOF calculated according to the most intense lines of the X-ray diffraction pattern is 65%. Results of XRD agree well with IR studies. The DTA curve shows a continuous exothermic process, which is associated with a number of features of plasma chemical synthesis and morphology of the obtained nanoparticles, which is in full accordance with the study using transmission electron microscopy.
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Ushakov, A.V., Karpov, I.V., Fedorov, L.Yu., Dorozhkina, E.A., Karpova, O.N., Shaikhadinov, A.A., Demin, V.G., Demchenko, A.I., Brungardt, M.V., and Goncharova, E.A., Formation of CuO and Cu2O crystalline phases in a reactor for low-pressure arc discharge synthesis, Inorg. Mater.: Appl. Res., 2020, vol. 11, pp. 232–237. https://doi.org/10.1134/S2075113320010372
Funding
This work was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Krai, the Regional Foundation of Science, and OOO Seismiklab (project no. 20-48-242904).
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Translated by A. Muravev
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Karpov, I.V., Ushakov, A.V., Fedorov, L.Y. et al. Vacuum-Arc Synthesis of Metal-Organic Framework Structures Based on ZrO2. Inorg. Mater. Appl. Res. 13, 924–928 (2022). https://doi.org/10.1134/S2075113322040165
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DOI: https://doi.org/10.1134/S2075113322040165