Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting

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	Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting
	Xue QJ(薛群基); Hu LT(胡丽天); Yan XB(阎兴斌); Yan XB(阎兴斌)
刊名	Microporous and Mesoporous Materials
	2011
卷号	142 页码:754-758
关键词	Silicon carbide Monolith Mesoporous Nanocasting
ISSN号	1387-1811
通讯作者	阎兴斌
中文摘要	Ordered mesoporous silicon carbide (SiC) monoliths have been synthesized using polycarbosilane as starting preceramic polymer and mesoporous silica SBA-15 as start template. SiC-carbon composite monoliths were generated via nanocasting, pressing, and subsequent pyrolysis under nitrogen at 1000 C and 1200 C, respectively. Finally, the carbon template was removed through thermal treat- ment in an ammonia atmosphere to obtain SiC monoliths with ordered mesoporous structures. Inves- tigated by small-angle X-ray diffraction (SA-XRD), powder wide-angle X-ray diffraction (WA-XRD), transmission electron microscopy (TEM), ﬁeld emission scanning electron microscope (FE-SEM), the nitrogen adsorption–desorption isotherm measurements and thermogravimetric analysis (TGA), the SiC monoliths display crack-free, ordered 2-dimentional hexagonal p6mm symmetry, high speciﬁc surface areas and oxidation stability. The porous ceramic monoliths possess compression strength of about 33.5 MPa, which is adequate for their use in several engineering applications.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the Top Hundred Talents Program of Chinese Academy of Sciences;the National Basic Research 973 Program of China (2011CB706603);the National Nature Science Foundation of China (51005225)
语种	英语
WOS记录号	WOS:000290198500045
公开日期	2012-09-24
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/795]
专题	兰州化学物理研究所_固体润滑国家重点实验室兰州化学物理研究所_先进润滑与防护材料研究发展中心
通讯作者	Yan XB(阎兴斌); Yan XB(阎兴斌)
推荐引用方式 GB/T 7714	Xue QJ,Hu LT,Yan XB,et al. Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting[J]. Microporous and Mesoporous Materials,2011,142:754-758.
APA	薛群基,胡丽天,阎兴斌,&阎兴斌.(2011).Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting.Microporous and Mesoporous Materials,142,754-758.
MLA	薛群基,et al."Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting".Microporous and Mesoporous Materials 142(2011):754-758.