Amine-functionalized boehmite nanoparticle-supported molybdenum and vanadium complexes: Efficient catalysts for epoxidation of alkenes

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• 作者：Mahdi Mirzaee ; ^{mmirzaee@shahroodut.ac.ir" class="auth_mail" title="E-mail the corresponding author} ; ^{mmirzaee@shahroodut.ac.ir" class="auth_mail" title="E-mail the corresponding author} ; Bahram Bahramian ; Marieh Mirebrahimi
• 关键词：Boehmite nanoparticles ; Heterogeneous catalysts ; Hexa-carbonyl molybdenum ; Oxo-sulfate vanadium ; Epoxidation
• 刊名：Chinese Journal of Catalysis
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：37
• 期：8
• 页码：1263-1274
• 全文大小：1078 K

文摘

Boehmite nanoparticles with a high surface area and a high degree of surface hydroxyl groups were covalently functionalized by 3-(trimethoxysilyl)-propylamine to support vanadium-oxo-sulfate and molybdenum hexacarbonyl complexes. These supported catalysts were then characterized by Fourier-transform infrared spectroscopy, powder X-ray diffraction, thermogravimetry and differential thermal analysis, X-ray-photoelectron spectroscopy, elemental analysis, inductively coupled plasma, and transmission electron microscopy techniques. The catalysts were subsequently used for the epoxidation of cis-cyclooctene, and the experimental procedures were optimized. The progress of the reactions was investigated by gas-liquid chromatography. Recycling experiments revealed that these nanocatalysts could be repeatedly used several times for a nearly complete epoxidation of cis-cyclooctene. The optimized experimental conditions were also used successfully for the epoxidation of some other substituted alkenes.