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Citation: Tang Yi, Hua Wei-Ming, Gao Zi. Acid Strength and the Framework Structure of Zeolite[J]. Acta Physico-Chimica Sinica, ;1994, 10(12): 1116-1120. doi: 10.3866/PKU.WHXB19941212 shu

Acid Strength and the Framework Structure of Zeolite

1.
Department of Chemistry,Fudan University,Shanghai 200433

Received Date: 20 September 1993
Available Online: 15 December 1994

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.
- Neopentane reaction,
- Acidity of zeolite,
- Acid strength
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