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学科主题: 物理化学
题名: Synthesis, Characterization, and Catalytic Properties of Two Zwitterionic Hybrid SBA-15 Mesoporous Silicas
作者: Yang, Miao1;  Xu, Feifei1;  Wang, Chang1;  Liu, Xiumei1;  Yan, Peifang1;  Li, Peipei1;  Welz-Biermann, Urs1
通讯作者: 杨淼
关键词: Zwitterions ;  Mesoporous materials ;  Organic-inorganic hybrid composites ;  Heterogeneous catalysis ;  Aldol reactions
刊名: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
发表日期: 2012-10-01
DOI: 10.1002/ejic.201200498
期: 28, 页:4500-4506
收录类别: SCI ;  IC
文章类型: Article
部门归属: 2
项目归属: 207
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Inorganic & Nuclear
研究领域[WOS]: Chemistry
英文摘要: Zwitterionic hybrid SBA-15 mesoporous silica materials containing both amine and sulfonic acid groups have been synthesized through cocondensation from as-synthesized zwitterionic siloxane precursors (ZS) with tetraethoxysilane (TEOS). Characterization by XRD, TEM, and N2 adsorptiondesorption measurements show that the as-synthesized materials have ordered mesostructures. Analysis with UV, 29Si/13C cross-polarization magic angle spinning (CP-MAS) NMR, and X-ray photelectron spectroscopy (XPS) and elemental analysis demonstrates that the zwitterionic parts have been successfully introduced into the silica framework, and the organic contents of 15?% hybrid samples are over 1.0 mmol/g. The presence of a secondary organoamine group enables the hybrid material to be further alkalized to achieve the desired basic properties. The materials were used as catalysts for the aldol condensation of acetone with 4-nitrobenzaldehyde. With a good catalytic performance, the catalyst could be easily separated, recycled, and reactivated by secondary basification.
关键词[WOS]: ACID-FUNCTIONALIZED SBA-15 ;  IONIC LIQUIDS ;  COOPERATIVE CATALYSIS ;  ESTERIFICATION ;  ORGANOSILICAS ;  CONDENSATION ;  BEHAVIOR ;  SITES ;  GEL
语种: 英语
WOS记录号: WOS:000309063300015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118214
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, China Ion Liquid Lab, Grp 207, Dalian 116023, Peoples R China

Recommended Citation:
Yang, Miao,Xu, Feifei,Wang, Chang,et al. Synthesis, Characterization, and Catalytic Properties of Two Zwitterionic Hybrid SBA-15 Mesoporous Silicas[J]. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,2012(28):4500-4506.
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