| 球形V-MCM-48的简单合成方法(英文) | |
| Facile Synthesis of Spherical V-MCM-48 | |
| 摘要: 活性金属掺杂的具有三维立方孔道结构的MCM-48在芳烃的氧化反应具有潜在应用价值。使用乙醇做助溶剂，在低的模板剂浓度下，经过一步水热法首次合成了球形的V-MCM-48。通过XRD，场发射扫描电镜，氮气吸附-脱附，红外，拉曼，核磁，X射线光电子能谱和ICP等技术对样品进行了表征。结果表明这些样品具有大的比表面积(1 005 m2·g)，有序的孔道结构。当V/Si的物质的量比高达2.91%时，仍没有出现V2O5晶体。大部分的钒进入了硅的骨架。所合成材料在低温过氧化氢直接氧化苯乙烯的反应中表现出良好的催化性能。 | |
| 关键词: 介孔 球形形貌 合成 苯乙烯氧化 | |
| 基金项目: | |
| Abstract: Spherical V-MCM-48 was synthesized by one-step hydrothermal method under low template concentration using ethanol as the co-solvent. The materials were characterized by XRD, FS-SEM, N2 adsorption, FTIR, Raman, NMR, XPS and ICP. The results show that the materials are with high specific surface area (1005 m2·g-1), ordered mesoporous structure and spherical morphology. V2O5 crystal is not found when the V/Si molar ratio is 2.91%. Most of vanadium is incorporated to the framework of silica. The materials are effective catalysts in the oxidation of the styrene with H2O2 under low temperature. | |
| Keywords: V-MCM-48 spherical morphology synthesis styrene oxidation | |
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| 许晓颖,孔 岩,陈 玉,赵 南,时晓波,王 军.球形V-MCM-48的简单合成方法(英文)[J].无机化学学报,2012,28(11):2478-2484. | |
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