Preparation, Characterization and Catalytic Behavior of 12-Molybdophosphoric Acid Encapsulated in the Supercage of Cs<sup>+</sup>-exchanged Y Zeolite

魏瑞平; 郭麦平; 王军

doi:10.1016/S1004-9541(09)60033-1

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Preparation, Characterization and Catalytic Behavior of 12-Molybdophosphoric Acid Encapsulated in the Supercage of Cs⁺-exchanged Y Zeolite

Updated：2026-01-06

- Preparation, Characterization and Catalytic Behavior of 12-Molybdophosphoric Acid Encapsulated in the Supercage of Cs⁺-exchanged Y Zeolite
- Chinese Journal of Chemical Engineering Vol. 17, Issue 1, Pages: 58-63(2009)
- Affiliations：
  
  1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology,Nanjing,China,210009
  2. School of Chemistry and Chemical Engineering, Southeast University,Nanjing,China,211189
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(09)60033-1
  CLC：
- Published：2009
- Accepted：
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-exchanged Y Zeolite[J]. , 2009, 17(1): 58-63.
DOI：

-exchanged Y Zeolite[J]. , 2009, 17(1): 58-63. DOI： 10.1016/S1004-9541(09)60033-1.

摘要

In order to solve the serious leaching problem of supported heteropoly acid catalysts in polar reaction media

12-molybdophosphoric acid encapsulated in the supercage of Cs

-exchanged Y zeolite was prepared by the "ship in the bottle" synthesis.The influence of ion-e

xchange conditions and the synthesis parameters on the encapsulation of PMo

were investigated.The obtained solid sample was characterized by X-ray diffraction(XRD)

P magic angle spin nuclear magnetic resonance(MAS NMR) and Fourier Transform Infrared Spectroscopy(FT-IR)

and its catalytic activity in the esterification of acetic acid and

-butanol was tested.The ion-exchange time

concentration of aqueous Cs

solution

pH value

and amount of Mo added in the synthesis mixture were revealed to influence the encapsulation very remarkably.Under the optimal conditions

12-molybdophosphoric acid could be successfully encapsulated in the supercage of CsY zeolite

and the samples showed considerable catalytic activity and excellent reusability in the esterification reaction.

Abstract

In order to solve the serious leaching problem of supported heteropoly acid catalysts in polar reaction media

12-molybdophosphoric acid encapsulated in the supercage of Cs

-exchanged Y zeolite was prepared by the "ship in the bottle" synthesis.The influence of ion-exchange conditions and the synthesis parameters on the encapsulation of PMo

were investigated.The obtained solid sample was characterized by X-ray diffraction(XRD)

P magic angle spin nuclear magnetic resonance(MAS NMR) and Fourier Transform Infrared Spectroscopy(FT-IR)

and its catalytic activity in the esterification of acetic acid and

-butanol was tested.The ion-exchange time

concentration of aqueous Cs

solution

pH value

and amount of Mo added in the synthesis mixture were revealed to influence the encapsulation very remarkably.Under the optimal conditions

12-molybdophosphoric acid could be successfully encapsulated in the supercage of CsY zeolite

and the samples showed considerable catalytic activity and excellent reusability in the esterification reaction.

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⁰

Preparation, Characterization and Catalytic Behavior of 12-Molybdophosphoric Acid Encapsulated in the Supercage of Cs+-exchanged Y Zeolite

DOI：10.1016/S1004-9541(09)60033-1

摘要

Abstract

关键词

Keywords

references

Preparation, Characterization and Catalytic Behavior of 12-Molybdophosphoric Acid Encapsulated in the Supercage of Cs⁺-exchanged Y Zeolite