物理化学学报 >> 1994, Vol. 10 >> Issue (12): 1116-1120.doi: 10.3866/PKU.WHXB19941212

研究简报 上一篇    下一篇

沸石的骨架结构与酸强度

唐颐, 华伟明, 高滋   

  1. 复旦大学化学系，上海 200433
  • 收稿日期:1993-09-20 修回日期:1994-01-07 发布日期:1994-12-15
  • 通讯作者: 高滋

Acid Strength and the Framework Structure of Zeolite

Tang Yi, Hua Wei-Ming, Gao Zi   

  1. Department of Chemistry,Fudan University,Shanghai 200433
  • Received:1993-09-20 Revised:1994-01-07 Published:1994-12-15
  • Contact: Gao Zi

PDF

2784

赞

关键词: 新戊烷反应, 沸石酸性, 酸强度

Abstract:

The decomposition of neopentane has been used as a probe reaction to test the acid strength of zeolites with different composition and framework structures. For a series of dealuminated HM zeolites, the acid strength increases first and then decreases as the Si/Al ratio of the zeolites is increased. The strongest acid strength appears at Si/Al ratio 8.1. For zeolites with different framework structure, the acid strength is in the order of HM>Hβ >HSY>HZSM-5≈HZSM-12. Changes in acid strength are discussed in relation to structural properties of the zeolites.

Key words: Neopentane reaction, Acidity of zeolite, Acid strength