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In situ growth and assembly of microporous aluminophosphate nanosheets into ordered architectures at low temperature and their enhanced catalytic performance
Gao, Beibei1,2; Tian, Peng1; Li, Mingrun3; Yang, Miao1; Qiao, Yuyan1,2; Wang, Linying1; Xu, Shutao1; Liu, Zhongmin1,3
刊名JOURNAL OF MATERIALS CHEMISTRY A
2015
DOI10.1039/c5ta00888c
3期:15页:7741-7749
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]HIERARCHICAL ZEOLITE-BETA ; CATIONIC POLYMER ; CRYSTALLINE ZEOLITE ; MOLECULAR-SIEVE ; GOLD NANOPARTICLES ; TEMPLATE ; NANOSTRUCTURES ; NANOCRYSTALS ; MORPHOLOGY ; POLYELECTROLYTE
英文摘要A low-temperature strategy to fabricate hierarchical aluminophosphate-based molecular sieves has been developed without the assistance of surfactants. The facile synthesis results in cylinder-like SAPO-5 (AFI) composed of oriented attached nanosheets with a thickness of 40-100 nm. The main exposed surface of the nanosheets is revealed by the SAED pattern to be the {001} plane, implying a short path for molecular diffusion in the one-dimensional 12-membered ring channel. Investigation on the crystallization process demonstrates that low temperature retards the crystal growth along the c-direction in SAPO-5 and the ordered architecture forms via a nanosheet formation and oriented attachment process. The aggregated morphology of SAPO-5 is template-dependent, which may be modified/changed by varying the template in the system. The low-temperature strategy is also successfully extended to the preparation of metal-containing aluminophosphate molecular sieves. The obtained MeAPO-5 (Me = Co, Mn, and Cr) and a novel CHA/AEI intergrowth CoAPO molecular sieve also possess hierarchical structures with nanosheet-assembled morphology. Remarkably, the present self-assembled AFI crystals exhibit an obvious improvement in catalytic reactions. This facile method provides a new way for the long-range organization of nanosized building blocks to fabricate hierarchical nanostructures.
语种英语
WOS记录号WOS:000352441100010
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146178
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Gao, Beibei,Tian, Peng,Li, Mingrun,et al. In situ growth and assembly of microporous aluminophosphate nanosheets into ordered architectures at low temperature and their enhanced catalytic performance[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(15):7741-7749.
APA Gao, Beibei.,Tian, Peng.,Li, Mingrun.,Yang, Miao.,Qiao, Yuyan.,...&Liu, Zhongmin.(2015).In situ growth and assembly of microporous aluminophosphate nanosheets into ordered architectures at low temperature and their enhanced catalytic performance.JOURNAL OF MATERIALS CHEMISTRY A,3(15),7741-7749.
MLA Gao, Beibei,et al."In situ growth and assembly of microporous aluminophosphate nanosheets into ordered architectures at low temperature and their enhanced catalytic performance".JOURNAL OF MATERIALS CHEMISTRY A 3.15(2015):7741-7749.
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