Synthesis and characterization of mesoporous aluminosilicates from zeolitic precursors and teos | |
Zheng, JL; Zhai, SR; Wu, D; Sun, YH | |
刊名 | Nanoporous materials iv
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2005 | |
卷号 | 156页码:119-124 |
ISSN号 | 0167-2991 |
通讯作者 | Zheng, jl() |
英文摘要 | Mesoporous aluminosilicates with improved hydrothermal stability were prepared via the controlled coassembly of zeolitic precursors and teos in alkaline media. xrd, n-2 sorption, and tem methods showed that the coassembled sample had hexagonal mesostructures, and the hydrothermal stability was largely improved compared to normal mcm-41. si-29 mas nmr spectra indicated that the product had higher cross-linking degree compared to normal mcm-41 through the extra introduction of protozeolitic nanoclusters. al-27 mas nmr spectra implied that most al species had been tetrahedrally incorporated into the framework. the catalytic cracking conversion rate of 1,3,5-triisopropylbenzene over this sample was as high as 97.66%. at the same time, the hydrolysis behavior of teos and synergic polymerization process of protozeolitic nanoclusters and silicate oligomers were outlined. |
WOS关键词 | MOLECULAR-SIEVES ; TUBULAR MORPHOLOGY ; HYDROTHERMAL STABILITY ; MESOSTRUCTURES ; MCM-41 ; SODIUM ; SILICA ; SEEDS |
WOS研究方向 | Chemistry ; Materials Science |
WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000230895600014 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2377003 |
专题 | 中国科学院大学 |
通讯作者 | Zheng, JL |
作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Converst, Beijing 030001, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, JL,Zhai, SR,Wu, D,et al. Synthesis and characterization of mesoporous aluminosilicates from zeolitic precursors and teos[J]. Nanoporous materials iv,2005,156:119-124. |
APA | Zheng, JL,Zhai, SR,Wu, D,&Sun, YH.(2005).Synthesis and characterization of mesoporous aluminosilicates from zeolitic precursors and teos.Nanoporous materials iv,156,119-124. |
MLA | Zheng, JL,et al."Synthesis and characterization of mesoporous aluminosilicates from zeolitic precursors and teos".Nanoporous materials iv 156(2005):119-124. |
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