Hits:

Indexed by:期刊论文

Date of Publication:2016-08-05

Journal:CATALYSIS COMMUNICATIONS

Included Journals:SCIE、EI、Scopus

Volume:83

Page Number:66-69

ISSN No.:1566-7367

Key Words:Zeolite beta; Hierarchical structure; Urea solution treatment; Nopol synthesis

Abstract:Hierarchical zeolite beta is successfully obtained via treating microporous zeolite beta with urea solution. Desilication takes place in a mild and stable alkaline media provided by the hydrolysis of urea solution. The hierarchy can be easily controlled by adjusting treatment temperature and time, the amount of urea solution and Si/Al ratio of the starting zeolite without loss of crystallinity. The resultant hierarchical zeolite beta can be directly used in acid catalytic reactions without tedious ammonium exchange, and it exhibits improved catalytic performance in nopol synthesis. (C) 2016 Elsevier B.V. All rights reserved.