Synthesis of ordered mesoporous silicon oxycarbide monoliths via preceramic polymer nanocasting

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Synthesis of ordered mesoporous silicon oxycarbide monoliths via preceramic polymer nanocasting
	Yuan XY(袁晓燕)1,2; Jin HL(金贺林)1; Yan XB(阎兴斌)1 ; Cheng LF(程赖飞)2; Hu LT(胡丽天)1 ; Xue QJ(薛群基)1
刊名	Microporous and Mesoporous Materials
	2012
卷号	147 期号:1 页码:252-258
关键词	SiOC ceramic Monolith Mesoporous Nanocasting Polymer-derived ceramic
ISSN号	1387-1811
通讯作者	阎兴斌
英文摘要	Highly ordered mesoporous silicon oxycarbide (SiOC) monoliths have been synthesized using liquid poly(hydridomethylsiloxane) (PHMS) as starting preceramic polymer and mesoporous carbon CMK-3 as direct template. Monolithic SiOC-carbon composites were generated via nanocasting of PHMS into CMK-3, pressing without any additive, cross-linking at 150 ℃ under humid air and subsequent thermolysis at 1000 or 1200 ℃ under argon atmosphere. The carbon template was finally removed by the thermal treatment at 1000 ℃ in an ammonia atmosphere, as a result of the generation of monolithic SiOC ceramics with ordered mesoporous structures. The products were characterized by scanning electron and transmission electron microscopes, X-ray diffraction, Fourier transformation infrared spectrometer, X-ray photoelectron spectroscope and nitrogen absorption–desorption analyzer. The as-prepared SiOC monoliths exhibited crack-free, ordered 2-dimentional hexagonal p6mm symmetry with high specific surface areas. With increasing the calcination temperature, the ordered mesoporous structure was still remained and the specific surface area just had a slight reduction from 616 to 602 m2 g 1. Moreover, the porous SiOC monoliths possessed good compression strengths and anti-oxidation properties.
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:000295906200032
公开日期	2013-07-12
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/3418]
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
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.NW Polytech Univ, Natl Key Lab Thermostruct Composite Mat, Xian 710072, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yuan XY,Jin HL,Yan XB,et al. Synthesis of ordered mesoporous silicon oxycarbide monoliths via preceramic polymer nanocasting[J]. Microporous and Mesoporous Materials,2012,147(1):252-258.
APA	Yuan XY,Jin HL,Yan XB,Cheng LF,Hu LT,&Xue QJ.(2012).Synthesis of ordered mesoporous silicon oxycarbide monoliths via preceramic polymer nanocasting.Microporous and Mesoporous Materials,147(1),252-258.
MLA	Yuan XY,et al."Synthesis of ordered mesoporous silicon oxycarbide monoliths via preceramic polymer nanocasting".Microporous and Mesoporous Materials 147.1(2012):252-258.