【摘要】 采用共价接枝法,以氨丙基-三乙氧基硅烷为氨源,制备了一系列的NH2-SBA-15催化剂,通过微量吸附量热技术定量地分析了该催化剂表面碱性中心的强度、数量和分布状态.实验结果表明,SBA-15在550℃焙烧6h,氨基硅源与SBA-15质量比为1·5,是合成NH2-SBA-15催化剂最适宜的条件.运用微量吸附量热技术实现了对NH2-SBA-15催化剂合成条件的优化.更多还原

【Abstract】 A series of NH2-SBA-15 were prepared via a aminopropyl-triethoxysilane to react with SBA-15 and characterized with N2-BET,XRD,elementary analysis and FTIR and flavanone was synthesize via condensation between 2’-hydroxyphenyl methyl ketone and benzaldehyde catalyzed by the catalyst NH2-SBA-15.The microcalorimetric technique was used to study quantitatively the surface base sites of NH2-SBA-15 with intensity,number and distribution.It was shown that the reaction condition(550,6,1.5) was the most compatible for synthesis of NH2-SBA-15.更多还原