6533b835fe1ef96bd129e950

RESEARCH PRODUCT

Synthesis and properties of magnetic iron oxide/platinum nanocomposites

Lidiya KulikovaAija KruminaVera SergaMikhail MaiorovDaniela Karashanova

subject

Materials scienceNanocompositeInorganic chemistryIron oxidechemistry.chemical_elementHematitechemistry.chemical_compoundchemistryvisual_artvisual_art.visual_art_mediumCarboxylateHexachloroplatinatePlatinumPyrolysisMagnetiteNuclear chemistry

description

Iron oxide/platinum nanocomposites have been synthesized by the extractive-pyrolytic method (EPM) involving gradual decomposition of iron capronate and n-trioctylammonium hexachloroplatinate initially produced by solvent extraction. The content of platinum in the composites was 1.2 wt%, 2.4 wt% and 4.8 wt%. Phase composition, morphology and magnetic properties of the produced materials were investigated. XRD analysis and magnetic measurements show that the magnetic phase (magnetite Fe3O4) dominates in a carrier sample produced by the pyrolysis of iron carboxylate, but hematite α-Fe2O3 exists there as an admixture. Referring to the TEM results, the produced composites contain ultra-disperse platinum particles on the carrier, and the mean size of these varies from 3 nm to 9 nm.

https://doi.org/10.1088/1757-899x/77/1/012014