Affiliation:
1. National Technical University of Athens
Abstract
In the course of this work, two iron oxide nanopowder samples (a mixture of FeO / γ-Fe2Ο3-Fe3O4) were composed, implementing the methodology. The synthesis used is a simple thermal decomposition route of organometallic precursors. The organometallic precursor used was the iron acetylacetonate (Fe (acac)3) which underwent reductive thermal degradation. The shape of the nanoparticles was examined and determined by the reaction time and the ratio of the used surfactants, oleic acid (OA) and oleylamine (OAm). The first sample underwent controlled oxidation in the air to transform the non-magnetic FeO phase to a mixture of magnetic phases, while the second sample underwent thermal reduction in a hydrogen atmosphere to produce a composite nanomaterial, with α-Fe, Fe3O4, γ-Fe2Ο3, being the dominant phases.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference20 articles.
1. Yanglong Hou, Zhichuan Xu and Shouheng Sun, Angew. Chem. Int. Ed. 46, 6329 –6332, (1997).
2. DS Vlachos, AC Xenoulis, Gas detection sensitivity and cluster size, Nanostructured Materials, 10, 8, p.1355–1361, (1998).
3. L. Lanotte, G. Ausanio, V. Iannotti, C. Luponio, Influence of particle pre-orientation on elastomagnetic effect in a composite material of ellipsoidal Ni microparticles in a silicone matrix, Appl. Phys. A: Materials Science and Processing, 77, pp.953-958, (2003).
4. DS Vlachos, DK Fragoulis, JN Avaritsiotis, An adaptive neural network topology for degradation compensation of thin film tin oxide gas sensors, Sensors and Actuators B: Chemical, 45, 3, p.223–228, (1997).
5. S. Kribalis, PE Tsakiridis, C. Dedeloudis, E. Hristoforou, Structural and electrical characterization of barium strontium titanate films prepared by sol-gel technique on brass (CuZn) substrate, J. Opt. Adv. Mat., 8, pp.1475-1478, (2006).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献