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题名: Synthesis and Growth Mechanism of the Core-Shell SAPO-34/AlPO-18 Molecular Sieves
作者: Zhang Lin1;  Tian Peng1;  Su Xiong1, 2;  Fan Dong1, 2;  Wang Dehua1, 2;  Liu Zhongmin1
关键词: core-shell molecular sieve ;  SAPO-34 ;  AlPO-18 ;  growth mechanism ;  ultra-high resolution field-emission scanning electron microscopy
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2012-10-01
DOI: 10.3724/SP.J.1088.2012.20650
卷: 33, 期:10, 页:1724-1729
收录类别: SCI
文章类型: Article
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The core-shell molecular sieves comprised of SAPO-34 as core and AlPO-18 as shell were hydrothermally synthesized and characterized by X-ray diffraction, scanning electron microscopy (SEM), and ultra-high resolution field-emission scanning electron microscopy (FE-SEM) techniques. The SEM results show that the growth of the shell AlPO-18 nanocrystals with different orientations and compactness can be controlled by adjustment of the synthesis conditions such as core pretreatment, liquid to solid ratio, and growth number. The ultra-high resolution FE-SEM images confirm that the growth performance of the shell AlPO-18 is closely related to the surface microstructure of SAPO-34, indicating the mechanism that the microstructure on the external surface of the core directs the growth of the shell.
关键词[WOS]: BINARY STRUCTURE ZEOLITE ;  HETEROEPITAXIAL GROWTH ;  SAPO-34 CATALYST ;  CONVERSION ;  CRYSTALS ;  METHANOL ;  COMPOSITES ;  OVERGROWTH ;  PERFORMANCE ;  H-ZSM-5
语种: 英语
WOS记录号: WOS:000310037500016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142862
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab Methanol to Olefins, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Zhang Lin,Tian Peng,Su Xiong,et al. Synthesis and Growth Mechanism of the Core-Shell SAPO-34/AlPO-18 Molecular Sieves[J]. CHINESE JOURNAL OF CATALYSIS,2012,33(10):1724-1729.
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