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首页> 外文期刊>Catalysis science & technology >Synthesis and characterization of versatile MgO-ZrO2 mixed metal oxide eanoparticles and their applications
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Synthesis and characterization of versatile MgO-ZrO2 mixed metal oxide eanoparticles and their applications

机译：多功能MGO-ZRO2混合金属氧化金属eanoparticles的合成和表征及其应用

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摘要

A heterogeneous, versatile nano-magnesia-zirconia or MgO-ZrO2 (MZ) catalyst was prepared by an ultra dilution method. The as-synthesised catalyst was characterized by several analytical techniques such as XRD, particle size analysis, BET surface area, thermogravimetric analysis (TGA), differential thermal analysis (DTA), FT-IR spectroscopy, SEM (scanning electron microscope), TEM (transmission electron microscope) and XPS (X-ray fluorescence spectroscopy). The surface area is found to be 268 m~2 g~(-1). The catalytic activity of MZ was tested for various important organic reactions such as cross-aldol condensation, N-benzyloxycarbonylation of amines, reduction of aromatic nitrocompounds, and synthesis of 1,5-benzodiazepines. It has been observed that for all reactions MZ shows a good catalytic activity. All corresponding products were obtained in good to excellent yield under mild conditions. The MgO-ZrO2 catalyst can be prepared from inexpensive precursors, has high surface area, and is reusable and recyclable for all reactions.
机译：通过超稀释法制备了异质的，多功能的纳米麦克尼西亚扎基亚或Mgo-Zro2（MZ）催化剂。实生的催化剂的特征是多种分析技术，例如XRD，粒度分析，BET表面积，热重分析（TGA），差分热分析（DTA），FT-IR光谱，SEM（扫描电子显微镜），TEM（tem（扫描电子），TEM（透射电子显微镜）和XPS（X射线荧光光谱）。发现表面积为268 m〜2 g〜（-1）。测试了MZ的催化活性，例如各种重要的有机反应，例如氨基二氧化剂，N-苯二氧化碳的氨基化，芳香族硝基化合物的还原以及1,5-苯并二氮卓类药物的合成。已经观察到，对于所有反应，MZ显示出良好的催化活性。在轻度条件下，所有相应的产品均以良好至优异的产量获得。 MGO-ZRO2催化剂可以由廉价的前体制备，具有较高的表面积，并且可重复使用且可回收所有反应。

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