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首页> 外文期刊>Journal of industrial and engineering chemistry >Controlled synthesis of CoFe2O4/MoS2 nanocomposites with excellent sedimentation stability for magnetorheological fluid
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Controlled synthesis of CoFe2O4/MoS2 nanocomposites with excellent sedimentation stability for magnetorheological fluid

机译：CoFe2O4 / MOS2纳米复合材料的控制合成，具有优异的磁流变流体沉降稳定性

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摘要

In this study, we reported novel nanocomposites containing cobalt ferrite (CoFe2O4) nanoparticles and molybdenum disulfide (MoS2) nanosheets (CoFe2O4/MoS2). The obtained CoFe2O4/MoS2 as dispersed phase was used to prepare magnetorheological (MR) fluid and the rheological properties were investigated in detail. The results of transmission electron microscopy showed that the CoFe2O4 nanoparticles were homogeneoused decorated on the surface of MoS2 nanosheets. The successful preparation of CoFe2O4/MoS2 was further confirmed by X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy and vibrating sample magnetometer. The CoFe2O4/MoS2 based MR fluid exhibited typical MR effect with increasing viscosity, shear stress, yield stress and dynamic shear moduli depending on external magnetic fields. More importantly, the prepared fluid showed excellent sedimentation stability due to unique two-dimensional structure and reduced fluid-particle density mismatch. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：在本研究中，我们报道了含有钴铁氧体（COFE2O4）纳米颗粒和二硫化钼（MOS2）纳米晶片（COFE2O4 / MOS2）的新型纳米复合材料。将获得的COFE2O4 / MOS2作为分散相用于制备磁流变学（MR）流体，并详细研究流变性质。透射电子显微镜的结果表明，CoFe2O4纳米颗粒在MOS2纳米晶片表面上装饰。通过X射线衍射，X射线光电子能谱，拉曼光谱和振动样品磁力计进一步证实COFE2O4 / MOS2的成功制备。基于COFE2O4 / MOS2的MR流体表现出典型的MR效应，随着粘度，剪切应力，屈服应力和动态剪切模量而呈增加，这取决于外部磁场。更重要的是，制备的流体由于独特的二维结构和降低的流体颗粒密度不匹配而显示出优异的沉降稳定性。 （c）2018年韩国工程和工程化学学会。 elsevier b.v出版。保留所有权利。

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