The effect of carboxylic acids on the oxidation of coated iron oxide nanoparticles (CROSBI ID 251471)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lengyel, Attila ; Tolnai, Gyula ; Klencsár, Zoltán ; Garg, Vijayendra Kumar ; de Oliveira, Aderbal Carlos ; Singh, L. Herojit ; Homonnay, Zoltan ; Szalay, Roland ; Németh, Péter ; Szabolcs, Bálint ; Ristić, Mira ; Musić, Svetozar ; Kuzmann, Ernő
engleski
The effect of carboxylic acids on the oxidation of coated iron oxide nanoparticles
57Fe Mössbauer spectroscopy, XRD, and TEM were used to investigate the effect of mandelic- and salicylic acid coatings on the iron oxide nanoparticles. These two carboxylic acids have similar molecules size and stoichiometry, but different structure and acidity. Significant differences were observed between the Mössbauer spectra of samples coated with mandelic acid and salicylic acid. These results indicate that the occurrence of iron microenvironments in the mandelic- and salicylic acid-coated iron oxide nanoparticles is different. The results can be interpreted in terms of the influence of the acidity of carboxylic acids on the formation, core/shell structure, and oxidation of coated iron oxide nanocomposites.
Iron oxide nanoparticles, Carboxylic acids, Maghemite/magnetite ratio, Magnetic properties, Mössbauer spectroscopy, Core/shell nanocomposites
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Podaci o izdanju
20 (5)
2018.
137
9
objavljeno
1388-0764
1572-896X
10.1007/s11051-018-4247-x