title: A top-down approach to prepare silicoaluminophosphate molecular sieve nanocrystals with improved catalytic activity.
abstract: Silicoaluminophosphate SAPO-34 molecular sieve nanocrystals have been prepared by a post-synthesis milling and recrystallization method, which is further proven to be universally applicable to other SAPO molecular sieves. The obtained SAPO-34 with reduced Si enrichment on the external surface shows considerably improved catalytic performance in the MTO reaction.
authors.affiliation: National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China. liuzm@dicp.ac.cn.
authors.forename: Miao
authors.initials: M
authors.lastname: Yang
authors.forename: Peng
authors.initials: P
authors.lastname: Tian
authors.forename: Chan
authors.initials: C
authors.lastname: Wang
authors.forename: Yangyang
authors.initials: Y
authors.lastname: Yuan
authors.forename: Yue
authors.initials: Y
authors.lastname: Yang
authors.forename: Shutao
authors.initials: S
authors.lastname: Xu
authors.forename: Yanli
authors.initials: Y
authors.lastname: He
authors.forename: Zhongmin
authors.initials: Z
authors.lastname: Liu