Journal
THERMOCHIMICA ACTA
Volume 708, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.tca.2021.179120
Keywords
IONPs; magnetite; TG-DSC; Thermal decomposition; Dehydration; Starch; Oleic acid; Sulfosalicylic acid
Funding
- Ministry of Science and Higher Education of Russian Federation
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The thermal properties of iron oxide nanoparticles stabilized with starch, 5-sulfosalicylic acid, and oleic acid were studied in an oxidizing atmosphere within the range of 30-1000 degrees C using thermogravimetry and differential thermal analysis. The sizes and morphology of the nanoparticles were determined through transmission and scanning electron microscopy analyses. Three stages of thermal transformation were discovered, and the thermal stability of the organic part was analyzed, with comparisons made to uncoated magnetite data.
Thermal properties of iron oxide nanoparticles (IONPs) stabilized with starch, 5-sulfosalicylic acid (SA) and oleic acid (OA) were studied in the range 30-1000 degrees C by thermogravimetry and differential thermal analysis in oxidizing atmosphere. Synchronized mass spectrometry data was collected. The sizes and morphology of IONPs were determined with transmission and scanning electron microscopy analyses. Three stages of thermal transformation were revealed: (I) water desorption, (II) organic content pyrolysis and (III) iron oxide phase transition. The thermal stability of the organic part was analyzed. Thermal conversions of modified IONPs were compared with the data for uncoated magnetite.
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