高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (7): 1169.

• 研究论文 • 上一篇    下一篇

PW/SBA-15负载型催化剂的性能研究

张雪峥, 乐英红, 高滋   

  1. 复旦大学化学系, 上海 200433
  • 收稿日期:2000-06-30 出版日期:2001-07-24 发布日期:2001-07-24
  • 通讯作者: 高　滋(1933年出生),女,教授,博士生导师,主要从事多相催化研究.E-mail:zigao@fudan.edu.cn E-mail:zigao@fudan.edu.cn
  • 基金资助:

    国家重点基础研究发展规划项目(批准号:G2000077500);高等学校骨干教师资助计划资助

Studies on 12-Tungstophosphoric Heteropolyacid Supported SBA-15 Catalysts

ZHANG Xue-Zheng, YUE Ying-Hong, GAO Zi   

  1. Department of Chemistry, Fudan University, Shanghai 200433, China
  • Received:2000-06-30 Online:2001-07-24 Published:2001-07-24

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被引次数

144

摘要： 合成、表征了一系列SBA-15负载H3PW12O40(PW)催化剂.负载量高达60%以上时,XRD仍未检测到催化剂上有PW晶相峰.负载后PW保持其Keggin结构,但与载体之间存在较强的相互作用.通过改变PW负载量可调变催化剂的酸性,制得适用于中强酸和弱酸性催化反应的介孔固体酸催化剂.

关键词: SBA-15分子筛, 磷钨杂多酸, 酸性, 催化活性

Abstract: Aseries of SBA-15 supported H3PW12O40 (PW) catalysts were prepared and characterized. PWcrystal phase was not observed in XRDpatterns at PWloading as high as 60%. PWdispersed on the supports retains its Keggin structure, but a strong chemical interaction between PWand SBA-15 supports is present. The activity of the catalysts can be adjusted by varying PWloading. PW/SBA-15 catalysts are promising mesoporous solid acid catalysts for medium strong and weak acid catalyzed reactions.

Key words: SBA-15 molecular sieve, 12 Tungstophosphoric acid, Acidity, Catalytic activity

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