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题名: Effect of drying technique on the morphological and textural characteristics of mesoporous silica synthesized in the microreactor
作者: Su, Min1, 2;  Su, Hongjiu1;  Ren, Gaoyuan1;  Du, Baolei1, 2;  Li, Xiaotong1, 2;  Wang, Shudong1
关键词: Silica ;  Mesoporous silica ;  Microreactor ;  Oven drying ;  Spray drying ;  Freeze drying
刊名: JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
发表日期: 2015-02-01
DOI: 10.1007/s10971-014-3562-7
卷: 73, 期:2, 页:460-468
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Ceramics
研究领域[WOS]: Materials Science
英文摘要: The mesoporous silica with high monodisperse inter-particle voids was obtained through different drying methods (oven, freeze, and spray) of wet-gel silica. And the wet-gel silica was prepared in the microreactor system through the precipitation of TEOS. The effects of different drying techniques on the textural properties and morphology of mesoporous silica synthesized in the microreactor were studied. The textural properties of silica were evaluated using nitrogen adsorption/desorption experiments. The morphology of the silica was described using transmission electron microscopy and field-emission scanning electron microscope. It was found that the oven drying (OD) silica exhibited the most uniform pore structures and compact structures. The freeze drying silica maintained the original network of wet-cake silica after drying. Due to the rapid and uniform heating of silica in the spray drying (SD) process, the silica obtained had the more porous structure than that of OD technique. Additionally, the surface tension of solution in the SD process affected the structures of final products. And the ethanol resulted in the more porous structures of silica than that of water.
关键词[WOS]: NANOPARTICLES ;  SYSTEMS
语种: 英语
WOS记录号: WOS:000349018000023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145992
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, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Su, Min,Su, Hongjiu,Ren, Gaoyuan,et al. Effect of drying technique on the morphological and textural characteristics of mesoporous silica synthesized in the microreactor[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,2015,73(2):460-468.
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