Infračervená spektroskopia – účinný nástoj pre charakterizáciu magnetických kvapalín

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Published Jul 30, 2024

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Natália Tomašovičová
Institute of Experimental Physics SAS

Abstract

Magnetické kvapaliny sú suspenzie zvyčajne pozostávajúce z nanočastíc oxidov železa rozptýlených v kvapalnom nosiči. V posledných rokoch nastal výrazný pokrok v rozvoji technológii v oblasti prípravy magnetických nanočastíc, mikrosfér, či nanosfér, čo viedlo k rozvoju technológii v oblasti prípravy nových druhov magnetických kvapalín, nazývaných tiež ferokvapaliny. Technológie spojené s využitím týchto komplexných systémov našli uplatnenie v mnohých odvetviach. Aby sa zabránilo agregácii magnetických nanočastíc, sú tieto obalené vhodným surfaktantom podľa typu kvapalného nosiča. Príprava magnetickej kvapaliny s požadovanými vlastnosťami si vyžaduje kontrolu procesu syntézy. Infračervená spektroskopia je metóda, ktorá umožňuje kontrolovať tento proces od kvality vstupných materiálov až po výsledok.

Kľúčové slová: príspevok; magnetické kvapaliny; infračervená spektroskopia


 



Magnetic fluids mainly consist of nano sized iron oxide particles that are dispersed in carrier liquid. In recent years, substantial progress has been made in developing technologies in the field of magnetic nanoparticles, microspheres, nanospheres what allowed to develop new kind of magnetic fluids also called ferrofluids. Techniques based on using of these magnetizable complex systems have found application in numerous fields. Generally, the magnetic particles are coated with different surfactants to prevent their aggregation. To prepare magnetic fluid with desirable parameters it is important to control the process of preparation. The infrared spectroscopy is method that allows to check starting materials and follow reactions while work is in progress.  (Infrared spectroscopy - an effective tool for the characterization of magnetic fluids)


Keywords: magnetic fluids; infrared spectroscopy

Article Details

Issue
Vol 17 No 1 (2024)
Section
High Voltage Technique and Diagnostics in Electrical Power Engineering
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