微波辅助溶胶-凝胶法合成MgO纳米粒子及其催化合成Hantzsch1,4-二氢吡啶性能(英文)

作     者：Hakimeh MIRZAEI Abolghasem DAVOODNIA 

作者机构：Department of ChemistryMashhad BranchIslamic Azad University 

出 版 物：《催化学报》 (催化学报)

年 卷 期：2012年第33卷第9期

页      面：1502-1507页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by Islamic Azad University Mashhad Branch 

主　　题：magnesium oxide microwave-assisted sol-gel method nanoparticle Hantzsch 1,4-dihydropyridine 

摘      要：A microwave-assisted sol-gel method was employed for the preparetion of nano-sized MgO particles using Mg(NO 3)2·6H2O as precursor and deionized water as *** sample calcined at 500℃ had a high specific surface area of 243.2m2/g and particles sizes from *** comparison,MgO nanoparticles were also synthesized without microwave irradiation.X-ray diffraction (XRD) characterization showed the formation of smaller particles after microwave *** structure and morphology of the MgO particles were analyzed by N2 adsorption-desorption,XRD,scanning electron microscopy,and transmission electron *** catalytic behavior was studied with the one-pot synthesis of Hantzsch1,4-dihydropyridines from the reaction of aromatic aldehydes,ethyl acetoacetate,and ammonium *** MgO nanoparticles have high catalytic activity and gave the desired products in good to high *** catalyst can be easily recovered by filtration and was used at least three times with only a slight reduction in its catalytic activity.