Vacuum-Arc Synthesis of Metal-Organic Framework Structures Based on ZrO2

Autor: I. V. Karpov, V. G. Demin, Elena Goncharova, A. V. Ushakov, Leonid Fedorov, M. V. Brungardt
Rok vydání: 2022
Předmět:
Zdroj: Inorganic Materials: Applied Research. 13:924-928
ISSN: 2075-115X
2075-1133
Popis: The vacuum-arc synthesis of nanopowders based on zirconium oxide and metal-organic framework structures was carried out using a low-pressure arc discharge plasma. The obtained material was studied by several methods (XRF, IR, TEM, DTA). The TEM method showed that Zr-MOK is a highly agglomerated particle of an almost spherical shape. The image clearly shows the crystalline ordering of nanoparticles with a large (about 2 nm) lattice parameter. Particle sizes range from 5 to 30 nm. Average particle size 9.4 nm. XRD showed that the proportion of ZrO relative to Zr-MOK, calculated from the most intense lines of the diffractogram, is 65%. XRF results are in good agreement with IR studies. The DTA curve demonstrates a continuous exothermic process associated with a number of features of the plasma-chemical synthesis and morphology of the resulting nanoparticles, which is in full agreement with studies using transmission microscopy.
Databáze: OpenAIRE
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