Technology of materialsV 1500 DOI: 10.1002/chin.201236198

2D Magnetic Frames Obtained by the Microwave-Assisted Chemistry Approach. — An extremely fast and versatile synthetic approach based on microwave heating to fabricate complex macroporous magnetic frames using sacrificial templates is present-ed. A stoichiometric and homogeneous conformal coating of superparamagnetic MnFe2O4 nanoparticles is grown onto a two-dimensional monolayer formed by self-as-sembled polystyrene spheres coated with a thin Al2O3 layer by microwave synthesis. The polystyrene template is immersed in the reaction solution containing Fe(acac)3 and Mn(acac)2 in the molar ratio of Fe/Mn = 2:1, and anhydrous benzyl alcohol (160 °C, 2, 5, or 10 min). The thickness of the coating is controlled by the duration of the chemical reaction. No post-treatment is required. The sacrificial polystyrene template is removed simultaneously as the magnetic nanoparticles formed, and large-scale structural order is preserved. — (PASCU, O.; GICH, M.; HERRANZ, G.; ROIG*, A.; Eur. J. Inorg. Chem. 2012, 16, 2656-2660, http://dx.doi.org/10.1002/ejic.201101244 ; Inst. Cienc. Mater., CSIC, Univ. Auton. Barcelona, Bellaterra, E-08193 Barcelona, Spain; Eng.) — W. Pewestorf

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ChemInform 2012, 43, issue 01 © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim