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	Synthesis, characterization and hydroisomerization catalytic performance of nanosize sapo-11 molecular sieves
	Zhang, Shengzhen; Chen, Sheng-Li; Dong, Peng; Ji, Zhiyong; Zhao, Junying; Xu, Keqi
刊名	Catalysis letters
	2007-10-01
卷号	118期号:1-2页码:109-117
关键词	Aging treatment Hydroisomerization Nanocrystals N-hexadecane Sapo-11 molecular sieves Static hydrothermal synthesis
ISSN号	1011-372X
DOI	10.1007/s10562-007-9138-1
通讯作者	Chen, sheng-li(slchen@cup.edu.cn)
英文摘要	A new static hydrothermal method was developed for synthesizing nanosize sapo-11 molecular sieve.the new method involves aging pretreatment step followed by crystallization process of a precursor gel. the effect of the aging pretreatment on morphology and size of sapo-11 molecular sieves was investigated. the results of xrd and sem showed that the aging pretreatment changed the size and morphology of the sapo-11 dramatically, and the size could be controlled by varying the time for aging. nanocrystals of sapo-11 molecular sieves were synthesized by aging the precursor gel at 150 degrees c for 135 min and then crystallizing the gel at 190 degrees c for 24 h. compared with the sapo-11 samples that exhibit the pseudo-spherical aggregates ranging from 3 to 15 mu m synthesized by conventional method, the sapo-11 samples synthesized by the new method not only possessed much smaller cubic single crystals of about 400-500 nm, but were more uniform in size. moreover, the sapo-11 samples synthesized by the new method had larger specific surface area and larger external specific surface area. the results of n-hexadecane hydroisomerization showed that the pt/sapo-11 prepared with the new method exhibited higher catalytic activity and better hydroisomerization selectivity than the pt/sapo-11 synthesized by conventional hydrothermal method.
WOS关键词	N-HEXADECANE HYDROISOMERIZATION ; PT/SAPO-11 CATALYSTS ; HYDROCONVERSION ; CRYSTALLIZATION ; HYDROCRACKING ; SELECTIVITY ; ACID
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000249646200018
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2380444
专题	中国科学院大学
通讯作者	Chen, Sheng-Li
作者单位	China Univ Petroleum, Coll Chem & Chem Engn, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shengzhen,Chen, Sheng-Li,Dong, Peng,et al. Synthesis, characterization and hydroisomerization catalytic performance of nanosize sapo-11 molecular sieves[J]. Catalysis letters,2007,118(1-2):109-117.
APA	Zhang, Shengzhen,Chen, Sheng-Li,Dong, Peng,Ji, Zhiyong,Zhao, Junying,&Xu, Keqi.(2007).Synthesis, characterization and hydroisomerization catalytic performance of nanosize sapo-11 molecular sieves.Catalysis letters,118(1-2),109-117.
MLA	Zhang, Shengzhen,et al."Synthesis, characterization and hydroisomerization catalytic performance of nanosize sapo-11 molecular sieves".Catalysis letters 118.1-2(2007):109-117.

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