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Microwave-solvothermal synthesis of Fe3O4 magnetic nanoparticles
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
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2013 (English)In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 107, 23-26 p.Article in journal (Refereed) Published
Abstract [en]

Fe3O4 magnetic nanoparticles were successfully synthesized by the microwave-solvothermal method in a simple reaction system during significantly shorter time than traditional solvothermal or hydrothermal methods. In this synthetic system, ethylene glycol acts as solvent, microwave mediate, and reductant; trisodium citrate works as assistant reductant and electrostatic stabilizer, which makes the Fe3O4 rianoparticles well dispersed in the solution; NH4Ac is the nucleating agent. In the process, a burst of "hot-spots" induced by quick microwave irradiation can create a condition for uniform seeding in the precursor solution, and accelerate the formation of Fe3O4 nanocrystals. F4(3)O(4) nanoparticles prepared by the microwave-solvothermal method showed a higher saturation magnetization than the sample synthesized by the conventional solvothermal method, which can be ascribed to the fact that the former has smaller particle sizes than the later.

Place, publisher, year, edition, pages
2013. Vol. 107, 23-26 p.
Keyword [en]
Nanoparticles, Magnetic materials, Nanocrystalline materials, Fe3O4, Microwave-solvothermal preparation, Ethylene glycol
National Category
Natural Sciences Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
Identifiers
URN: urn:nbn:se:uu:diva-208358DOI: 10.1016/j.matlet.2013.05.117ISI: 000323240300008OAI: oai:DiVA.org:uu-208358DiVA: diva2:652569
Available from: 2013-10-01 Created: 2013-09-30 Last updated: 2017-12-06Bibliographically approved

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Wei, YajunLiivat, AntiZhu, Jiefang

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