From natural aluminosilicate minerals to hierarchical ZSM-5 zeolites: a nanoscale depolymerization-reorganization approach

Yue, Yuanyuan, Liu, Haiyan, Yuan, Pei, Li, Tiesen, Yu, Chengzhong, Bi, Hsiaotao and Bao, Xiaojun (2014) From natural aluminosilicate minerals to hierarchical ZSM-5 zeolites: a nanoscale depolymerization-reorganization approach. Journal of Catalysis, 319 200-210. doi:10.1016/j.jcat.2014.08.009


Author Yue, Yuanyuan
Liu, Haiyan
Yuan, Pei
Li, Tiesen
Yu, Chengzhong
Bi, Hsiaotao
Bao, Xiaojun
Title From natural aluminosilicate minerals to hierarchical ZSM-5 zeolites: a nanoscale depolymerization-reorganization approach
Journal name Journal of Catalysis   Check publisher's open access policy
ISSN 0021-9517
1090-2694
Publication date 2014-11-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.jcat.2014.08.009
Open Access Status Not yet assessed
Volume 319
Start page 200
End page 210
Total pages 11
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Language eng
Subject 1503 Catalysis
1606 Physical and Theoretical Chemistry
Abstract In this article, we describe a novel strategy for synthesizing hierarchical ZSM-5 zeolites via the nanoscale depolymerization–reorganization of natural aluminosilicate minerals. This strategy involves two important steps: the first is the top-down depolymerization of one aluminum-rich aluminosilicate mineral via a novel submolten salt system and one silicon-rich aluminosilicate mineral via conventional thermal treatment into nanoscale building blocks, and the second is the bottom-up rearrangement and reorganization of nanoscale building blocks in the synthesis system into hierarchical ZSM-5 zeolites. When used as a fluid catalytic cracking catalyst additive, the resulting ZSM-5 zeolite with hierarchical micro–mesoporous structure exhibited high activity and selectivity for valuable products in preliminary oil refining tests. The salient features of the strategy lie in that it neither involves any inorganic aluminum and silicon salts as precursors nor uses any secondary mesoscale template and post-treatment to create mesopores, thus demonstrating itself to be a green route to synthesizing hierarchical zeolites.
Keyword Zeolite ZSM-5
Natural aluminosilicate
Hierarchical
Microporous
Mesoporous
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID 20825621
2010CB226905
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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