Controlled formation of iron oxide nanoparticles by pulse-modulated RF discharge at atmospheric pressure
| Autor: | A L Shakhmin, Yaroslav Sedov, Polina Bespalova, Maxim V. Mishin, Alexey Mikhaylov, O. E. Kvashenkina, Anastasia S. Kondrateva, P. G. Gabdullin, Alexandr Vorobyev |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Atmospheric pressure Analytical chemistry Nanoparticle 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences chemistry.chemical_compound X-ray photoelectron spectroscopy chemistry Elemental analysis Agglomerate 0103 physical sciences Capacitively coupled plasma Radio frequency 0210 nano-technology Iron oxide nanoparticles |
| Zdroj: | Materials Today: Proceedings. 30:417-421 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2019.12.388 |
| Popis: | Iron oxide nanoparticles of various sizes have been experimentally obtained in a capacitively coupled plasma of a radio frequency (RF) discharge at atmospheric pressure in constant and pulse-modulated modes of the RF discharge. Elemental analysis of the obtained nanoparticles by X-ray photoelectron spectroscopy (XPS) and IR Fourier spectroscopy shows that the iron oxide nanoparticles are a mixture of FeO (II) and Fe2O3 (III) oxides. In the constant mode of discharge burning, the obtained nanoparticles with an estimated average size of 5–50 nm are formed as agglomerates of tangled chains. In the pulse-modulated mode of discharge burning, the particles with an estimated average size of 330 or 640 nm depending on the mode of discharge modulation are obtained. |
| Databáze: | OpenAIRE |
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