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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Raman spectroscopy of cobalt ferrite nanocomposite in silica matrix prepared by sol-gel method
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Raman spectroscopy of cobalt ferrite nanocomposite in silica matrix prepared by sol-gel method

机译：溶胶-凝胶法制备二氧化硅基体中钴铁氧体纳米复合材料的拉曼光谱

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The synthesis and the optical characterization of CoFe2O4-SiO2 nanocomposites is reported in this study. The interaction of the nanoparticles with the host matrix in the nanocomposites prepared by sol gel was investigated using Raman spectroscopy. Samples with different nanoparticle concentrations as well as pure silica samples (used as references) have been investigated as a function of different thermal treatments. Our findings show that the investigated composite samples reveal a competition among Si-O-Si and Si-OH bonds. The Raman data indicated that the CoFe2O4 nanoparticles interact with both the silica or silanol groups in the cavities in which they are formed. (c) 2006 Elsevier B.V. All rights reserved.
机译：这项研究报道了CoFe2O4-SiO2纳米复合材料的合成和光学表征。使用拉曼光谱研究了溶胶凝胶制备的纳米复合材料中纳米颗粒与主体基质的相互作用。已经研究了具有不同纳米颗粒浓度的样品以及纯二氧化硅样品（用作参考），作为不同热处理的函数。我们的发现表明，所研究的复合样品揭示了Si-O-Si和Si-OH键之间的竞争。拉曼数据表明，CoFe2O4纳米粒子与形成它们的腔中的二氧化硅或硅烷醇基团相互作用。 （c）2006 Elsevier B.V.保留所有权利。

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