| SiO2/M纳米复合材料的结构及催化性能 |
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| 引用本文： | 许静,谢凯,陈一民,盘毅,胡芸. SiO2/M纳米复合材料的结构及催化性能[J]. 化工新型材料, 2002, 30(5): 32-34 |
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| 作者姓名： | 许静 谢凯 陈一民 盘毅 胡芸 |
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| 作者单位： | 国防科技大学材料工程与应用化学系,长沙,410073 |
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| 摘 要： | 采用溶胶-凝胶法和超临界干燥法制备了SiO2/M(Cu,Co)纳米复合材料,对其结构、形貌进行了TEM和比表面分析,并研究了SiO2/M纳米复合材料的催化性能.结果表明,制得的SiO2/M纳米复合材料保留了SiO2气凝胶的纳米网络和高比表面积,金属组份Cu与Co均匀地分散在纳米级SiO2气凝胶骨架中,对CO的氧化反应以及CO-NO反应均表现出高的催化活性.
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| 关 键 词： | 纳米复合材料 SiO2气凝胶 CO氧化催化 CO-NO催化反应 |
| 修稿时间： | 2002-02-01 |
Structure and catalytic activity of SiO2/M nanocomposite materials |
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| Xu Jing Xie Kai Chen Yimin Pan Yi Hu Yun. Structure and catalytic activity of SiO2/M nanocomposite materials[J]. New Chemical Materials, 2002, 30(5): 32-34 |
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| Authors: | Xu Jing Xie Kai Chen Yimin Pan Yi Hu Yun |
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| Abstract: | SiO 2/M nanocomposite materials(M=Cu or Co)are prepared by sol gel process and supercritical drying.The microstructure of the nanocomposite,including partical size and pore size distribution is discussed.Their catalytic behavior were determined.The results indicate that SiO 2/M nanocomposite materials has high surface areas.Metal components Cu or Co are dispersed highly in the skeleton of SiO 2 aerogels.For CO-O 2 and CO-NO reactions,SiO 2/M nanocomposite materials showed high catalytic activities. |
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| Keywords: | nanocomposite materials oxidation ofCO CO-NO reaction |
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