...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Science >Synthesis, characterization and catalytic behavior of SnTf/MCM-41 and SnTf/UVM-7 as new green catalysts for etherification reactions
【24h】

Synthesis, characterization and catalytic behavior of SnTf/MCM-41 and SnTf/UVM-7 as new green catalysts for etherification reactions

机译：SnTf / MCM-41和SnTf / UVM-7作为醚化反应的新型绿色催化剂的合成，表征和催化性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Strong Lewis acid SnTf-MCM-41 and SnTf-UVM-7 catalysts with unimodal and bimodal pore systems were prepared in a two-step synthesis in which the triflic acid (OTf) was incorporated into previously synthesized mesoporous tin-containing silicas. The Sn incorporation inside the pore walls was carried out through the Atrane method. The SnTf-UVM-7 catalysts were prepared by aggregating nanometric mesoporous particles defining a hierarchic textural-type additional pore system. Catalysts with different Si/Sn ratios in the range 21.8–50.8 for SnTf-MCM-41 and 18.4 for SnTf-UVM-7 were found to be efficient catalysts for the etherification of primary alcohols to symmetrical long chain ethers and the selective etherification of ethylene glycol with 1-octanol to nonionic surfactants structures. The processes are green, environmentally safe, and heterogeneous. 6th International Mesostructured Materials Symposium, September 8–11, 2008, Namur, Belgium.
机译：在两步合成中制备了具有单峰和双峰孔体系的强路易斯酸SnTf-MCM-41和SnTf-UVM-7催化剂，其中将三氟甲磺酸（OTf）掺入了先前合成的中孔含锡二氧化硅中。通过Atrane方法进行孔壁内的Sn的掺入。 SnTf-UVM-7催化剂是通过聚集纳米级介孔颗粒而制备的，该纳米级介孔颗粒定义了层次结构型附加孔隙系统。发现对于SnTf-MCM-41，Si / Sn比在21.8-50.8和对于SnTf-UVM-7为18.4范围内的不同Si / Sn比的催化剂是伯醇醚化为对称长链醚和乙烯选择性醚化的有效催化剂乙二醇与1-辛醇合成非离子表面活性剂结构。这些过程是绿色的，对环境安全的并且是异构的。第六届国际介观结构材料研讨会，2008年9月8日至11日，比利时那慕尔。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号