Preparation of Microporous and Mesoporous Bimodel Molecular Sieves by Heat Treatment of ZSM-5

Journal of Inorganic Materials

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Preparation of Microporous and Mesoporous Bimodel Molecular Sieves by Heat Treatment of ZSM-5

WAN Ke-Shu¹; LIU Qian¹; ZHANG Gun-Man^1,2

1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. Department of Material Science and Engineering; Tongji University; Shanghai 200092; China

Received:2002-08-23 Revised:2002-10-14 Published:2003-09-20 Online:2003-09-20

Abstract

Abstract: A microporous and mesoporous bimodel molecular sieve was made from commercial ZSM-5 through heat treatment routine. The structure of the
bimodel molecular sieve is strongly dependent on the treatment conditions (temperature and time). The sample treated at 1000℃ for 2h
has the highest mesopore phase, and the contribution of the mesopore phase to the BET surface area is comparable to the contribution of the micropore phase. The bimodel molecular sieve has narrow mesopore pore diameter
distribution and high crystallinity.

Key words: micro-meso bimodel molecular sieve, heat treatment, ZSM-5

CLC Number:

TQ174

WAN Ke-Shu,LIU Qian,ZHANG Gun-Man. Preparation of Microporous and Mesoporous Bimodel Molecular Sieves by Heat Treatment of ZSM-5[J]. Journal of Inorganic Materials.

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Preparation of Microporous and Mesoporous Bimodel Molecular Sieves by Heat Treatment of ZSM-5

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