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将具有高比表面积和表面高度羟基化的拟薄水铝石纳米颗粒与3-(3甲氧基硅烷)-正丙胺进行共价结合而官能团化,再用于负载硫酸氧钒和六羰基钼络合物。所得样品采用红外光谱、粉末X射线衍射、热重-差热分析、X射线光电子能谱、元素分析、电感耦合等离子体和透射电镜等技术进行了表征,并用于顺-环辛烯的环氧化反应中,优化了诸如溶剂和氧化剂等反应条件.反应过程采用气-液色谱进行监测.重复使用实验表明,该纳米催化剂可重复使用多次,并保持顺-环辛烯接近完全环氧化.所得到的优化反应条件也成功用于其它的取代烯烃的环氧化反应中.
Pseudo-boehmite nanoparticles with high specific surface area and surface height hydroxylation were covalently bound to 3- (3methoxysilane) -propylamine to functionalize and then used to support vanadyl sulfate and molybdenum hexacarbonyl Complex. The obtained samples were characterized by FTIR, XRD, TG-DTA, XPS, elemental analysis, inductively coupled plasma and transmission electron microscopy and used in epoxy resin of cis-cyclooctene In the reaction, the reaction conditions such as solvent and oxidant are optimized, and the reaction process is monitored by gas-liquid chromatography. Re-use experiments show that the nanocatalyst can be reused for many times and keep the cis-cyclooctene near complete epoxidation The resulting optimized reaction conditions were also successfully used in the epoxidation of other substituted alkenes.