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论文类型：期刊论文

发表时间：2016-08-05

发表刊物：CATALYSIS COMMUNICATIONS

收录刊物：SCIE、EI、Scopus

卷号：83

页面范围：66-69

ISSN号：1566-7367

关键字：Zeolite beta; Hierarchical structure; Urea solution treatment; Nopol synthesis

摘要：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.