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中文摘要：
在醇-水混合溶剂中合成了表面为油酸修饰的LaF3纳米粒子，并用透射电子显微镜、红外光谱和X射线粉末衍射仪对修饰LaF3纳米粒子进行了表征。结果表明：所制备的修饰LaF3纳米粒子大小均匀，粒径约为8nm；其纳米核为六方结构的LaF3；由于表面修饰剂油酸与LaF3纳米粒子表面之间发生化学键合作用，使得油酸修饰LaF3纳米粒子在苯及润滑油中的分散性明显提高。
英文摘要：
Oleic acid （OA） surface modified LaF3 nanoparticles were prepared in alcohol-water mixture solvent. Transmission electron microscope （TEM）, infrared spectroscopy （FTIR）, and X-ray powder diffractometertion （XRD） were used to characterize the capped LaF3 nanoparticles. Results show that the capped LaF3 nanopartities distributed uniformly with average diameter of about 8nm, The structure of LaF3 nanocore was hexagonal. Because of the modification agent OA reacted chemically with the LaF3 nanoparticles,the dispersion capacity of OA capped LaF3 nanoparticles in benzene and lubrication oil was improved effectively.
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