| 负载Pd纳米粒子聚合物颗粒的制备及其催化性能研究 |
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| 引用本文： | 施冬健,任申玥,熊万斌,段芳,陈明清.负载Pd纳米粒子聚合物颗粒的制备及其催化性能研究[J].功能材料,2011,42(11). |
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| 作者姓名： | 施冬健 任申玥 熊万斌 段芳 陈明清 |
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| 作者单位： | 江南大学化学与材料工程学院,江苏无锡,214122 |
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| 基金项目： | 国家自然科学基金资助项目(20876070) |
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| 摘 要： | 使聚N-乙烯基乙酰胺（PNVA）大分子单体与苯乙烯（St）和丙烯腈（AN）进行三元分散共聚,制得了粒径分布较均一、表面带有花纹状的PNVA-g-PAN/PSt聚合物颗粒,进而以PdCl2为金属源,乙醇为还原剂,采用醇热法将Pd2＋离子还原成Pd纳米粒子并负载于聚合物颗粒表面。透射电子显微镜（TEM）观察表明Pd纳米粒子在聚合物颗粒表面且分布均匀。X射线衍射（XRD）花样图显示Pd纳米粒子为立方晶系,其粒径在9nm左右。热重分析（TGA）结果表明PNVA-g-PAN/PSt聚合物颗粒表面所含Pd纳米粒子的质量分数为0.15%～0.30%。在Pd纳米粒子存在的条件下,可使葡萄糖容易转化为葡萄糖酸,表明该负载型Pd纳米粒子具有良好的催化氧化作用。
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| 关 键 词： | 聚合物颗粒 还原 Pd纳米粒子 催化氧化 |
Studies on preparation of loaded palladium nanoparticles on the polymer spheres and their catalytic property |
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| SHI Dong-jian,REN Shen-yue,XIONG Wan-bin,DUAN Fang,CHEN Ming-qing.Studies on preparation of loaded palladium nanoparticles on the polymer spheres and their catalytic property[J].Journal of Functional Materials,2011,42(11). |
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| Authors: | SHI Dong-jian REN Shen-yue XIONG Wan-bin DUAN Fang CHEN Ming-qing |
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| Affiliation: | SHI Dong-jian,REN Shen-yue,XIONG Wan-bin,DUAN Fang,CHEN Ming-qing(School of Chemical and Material Engineening,Jiangnan University,Wuxi 214122,China) |
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| Abstract: | Poly(N-vinylacetamide)(PNVA) grafted polyacrylonitrile/polystyrene(PNVA-g-PAN/PSt) polymer spheres were prepared by dispersion copolymerization of acrylonitrile(AN),styrene(St),and PNVA macromonomer using AIBN as an initiator.Palladium nanoparticles were homogenously located onto surfaces of the PNVA-g-PAN/PSt polymer spheres,which was confirmed by transmission electron microscopy(TEM),by reduction method using PdCl2 as metal and ethanol as reducing agent.The amorphous diffraction peak of the polymeric part... |
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| Keywords: | polymeric sphere reduction palladium nanoparticle catalytic oxidization |
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