Sol-gel synthesis of preceramic polyphenylsilsesquioxane aerogels and their application toward monolithic porous SiOC ceramics
文献类型：期刊论文
| 作者 | Wu, Ze1; Cheng, Xinqun1; Zhang, Lei1; Li, Ji1; Yang, Chunhui1,2 |
| 刊名 | Ceramics International
 |
| 出版日期 | 2018 |
| 卷号 | 44期号:12页码:14947-14951 |
| ISSN号 | 02728842 |
| DOI | 10.1016/j.ceramint.2018.05.115 |
| 英文摘要 | A facile route toward monolithic porous SiOC ceramics from preceramic polyphenylsilsesquioxane (PSQ) aerogels was reported herein. The supercritical drying derived aerogels were synthesized through a sol-gel process wherein Span-20 was used to suppress the phase separation that caused by the oligomers of hydrolysed precursors. It was found that the amount of Span-20 had a significant effect on the microstructure of PSQ aerogels. At an optimized condition, as-synthesized aerogel showed a narrow pore size distribution (~12 nm) and a high specific surface area (632.27 m2/g). Moreover, the structure evolution as well as the phase transformation of the aerogel at different sintering temperatures were simultaneously investigated. Porous amorphous SiOC monoliths with specific surface areas up to 247.06 m2/g were synthesized under 1200 . While for aerogels pyrolyzed over 1400 the microstructure collapsed and only bulk SiC ceramics were obtained. © 2018 Elsevier Ltd and Techna Group S.r.l. |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25269]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of chemistry and chemical engineering, Harbin Institute of Technology, Harbin; Hei Longjiang; 150001, China; 2.State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin; Hei Longjiang; 150001, China |
| 推荐引用方式 GB/T 7714 | Wu, Ze,Cheng, Xinqun,Zhang, Lei,et al. Sol-gel synthesis of preceramic polyphenylsilsesquioxane aerogels and their application toward monolithic porous SiOC ceramics[J]. Ceramics International,2018,44(12):14947-14951. |
| APA | Wu, Ze,Cheng, Xinqun,Zhang, Lei,Li, Ji,&Yang, Chunhui.(2018).Sol-gel synthesis of preceramic polyphenylsilsesquioxane aerogels and their application toward monolithic porous SiOC ceramics.Ceramics International,44(12),14947-14951. |
| MLA | Wu, Ze,et al."Sol-gel synthesis of preceramic polyphenylsilsesquioxane aerogels and their application toward monolithic porous SiOC ceramics".Ceramics International 44.12(2018):14947-14951. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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