| 磁性纳米钌催化剂的制备及对聚苯乙烯催化加氢的催化性能 |
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| 引用本文： | 周宏勇,强明辉,李军章,李云庆,王家喜.磁性纳米钌催化剂的制备及对聚苯乙烯催化加氢的催化性能[J].高分子材料科学与工程,2011(11):73-76,80. |
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| 作者姓名： | 周宏勇 强明辉 李军章 李云庆 王家喜 |
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| 作者单位： | 河北工业大学化工学院;河北科技大学化学制药与工程学院; |
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| 基金项目： | 河北省教育厅百名优秀创新人才支持计划基金 |
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| 摘 要： | 通过化学共沉淀法制备了Fe3O4,利用硅酸钠水解、缩合制备了具有核壳结构SiO2/Fe3O4复合纳米粒子。利用红外光谱(FT-IR)、扫描电镜(SEM)、X射线衍射(XRD)以及振动样品磁强计(VSM)技术对其进行了表征。将所得的磁性纳米SiO2/Fe3O4用有机硅改性的聚乙烯吡咯烷酮进行表面修饰,利用原位还原RuCl3的方法将金属Ru负载到磁性载体上,制备了磁性纳米催化剂Ru/PVP/SiO2/Fe3O4。探讨了所得催化剂对聚苯乙烯氢化反应的催化性能,考察了反应压力、温度、时间以及溶剂等对催化性能的影响。结果表明,随着反应温度的升高、压力的增加,催化活性提高;当反应温度为393K、氢气压力为8 MPa、反应时间为5 h时,聚苯乙烯氢化度可以达到90%以上。
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| 关 键 词： | 催化氢化 聚苯乙烯 磁性粒子 氢化聚苯乙烯 纳米钌催化剂 |
Preparation of Magnetic Nano-Ruthenium Catalyst and Its Performance in Hydrogenation of Polystyrene |
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| Hongyong Zhou,Minghui Qiang,Junzhang Li,Yunqing Li,Jiaxi Wang.Preparation of Magnetic Nano-Ruthenium Catalyst and Its Performance in Hydrogenation of Polystyrene[J].Polymer Materials Science & Engineering,2011(11):73-76,80. |
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| Authors: | Hongyong Zhou Minghui Qiang Junzhang Li Yunqing Li Jiaxi Wang |
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| Affiliation: | Hongyong Zhou1,Minghui Qiang1,Junzhang Li1,2,Yunqing Li1,Jiaxi Wang1(1.School of Chemical Engineering,Hebei University of Technology,Tianjin 300130,China,2.College of Chemical & Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China) |
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| Abstract: | The core-shell structure SiO2/Fe3O4 was obtained through hydrolyzation and condensation of Na2SiO3 over the surface of Fe3O4 nanoparticle prepared by the chemical co-precipitation method.The magnetic carrier was characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FT-IR) and vibration sample magnetometer(VSM).The magnetic nanoparticle was modified by treatment of organic silicone modified PVP.The Ru/PVP/SiO2/Fe3O4 catalyst was prepared by loading ... |
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| Keywords: | catalytic hydrogenation PS magnetic particles hydrogenated polystryene nano ruthenium |
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