高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

微量吸附量热技术在NH2-SBA-15合成中的应用

杨胥微, 张晓丰, 阚秋斌, 付威, 黄家辉, 吴通好   

  1. 吉林大学化学学院物理化学系, 长春 130012
  • 收稿日期:2006-09-06 修回日期:1900-01-01 出版日期:2007-06-10 发布日期:2007-06-10
  • 通讯作者: 杨胥微

Application of Microcalorimetric Technique to the Synthesis of NH2-SBA-15

YANG Xu-Wei*, ZHANG Xiao-Feng, KAN Qiu-Bin, FU Wei, Huang Jia-Hui, WU Tong-Hao   

  1. Department of Physic Chemistry, College of Chemistry, Jilin University, Changchun 130021, China
  • Received:2006-09-06 Revised:1900-01-01 Online:2007-06-10 Published:2007-06-10
  • Contact: YANG Xu-Wei

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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6 h, 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.

关键词: 微量吸附量热, NH2-SBA-15, 二氧化碳, 碱性中心

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.

Key words: Microcalorimetry, NH2-SBA-15, Carbon dioxide, Base site

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