郝春成

教授

教授 博士生导师 硕士生导师

职务:先进电工材料研究院院长

学历:博士研究生

主要任职:高压绝缘系统与先进电工材料山东省工程研究中心 主任

其他任职:山东省电工技术学会高压绝缘与电工材料专委会主任委员

论文成果

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Titanium oxide-coated titanium-loaded metal organic framework (MOF-Ti) nanoparticles show improved electrorheological performance

发布时间:2021-03-15 点击次数:

关键字:GRAPHENE OXIDE; BEHAVIOR; FLUIDS; NANOCOMPOSITES; PARTICLES; WATER
摘要:Uniform small-sized MOF-Ti nanoparticles were prepared by a one-step hydrothermal method, and then a 5-10 nm TiO(2)shell was coated onto them by using the sol-gel method, and MOF-Ti/TiO(2)with a specific surface area of 50.2 m(2)g(-1)was successfully prepared. The nanoparticles were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), nitrogen adsorption-desorption isotherms (BET), and X-ray photoelectron spectroscopy (XPS). The above-analyses have elaborated the experimental study of their morphology, elements, and energy of organic functional groups. At the same time, through the use of a high-voltage rotary rheometer to test their rheological properties, the analysis of shear stress, ER efficiency, shear viscosity,etc.was performed and their dielectric constant and dielectric loss were studied by using a broadband dielectric spectrometer. Finally, we found that MOF-Ti/TiO(2)is a new core-shell nanocomposite particle with a small particle size and good electrorheological properties.
卷号:16
期号:40
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