Ionic liquid assisted fabrication of high performance SWNTs reinforced ceramic matrix nano-composites

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• 作者：Nijuan Sun^a ; ^b ; ^{sunnijuan@pku.org.cn} ; Lars.P.H. Jeurgens^c ; ¹ ; Zaklina Burghard^b ; Joachim Bill^b ; ^{bill@imw.uni-stuttgart.de}
• 关键词：Ceramic matrix nanocomposites ; Ionic Liquids ; BN(C) interlayer ; Highly dispersed SWNTs ; Mechanical and electrical properties
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：43
• 期：2
• 页码：2297-2304
• 全文大小：1596 K
• 卷排序：43

文摘

A Novel approach to fabricate high performance SiCN ceramic nanocomposites containing well dispersed single-walled carbon nanotubes (SWNTs) assisted by room temperature ionic liquids (RTILs) is developed. This method is straightforward, environment-friendly and overcome the typical challenges in the synthesis procedures of SWNTs reinforced precursor derived ceramics (PDCs). The microstructural and elemental characteristics of these ceramic matrix nanocomposites present highly-dispersed SWNTs were introduced and a profitably BN(C) interlayer could be formed in situ between the SWNTs and the ceramic matrix, which resulting in a high performance and a crack free ceramic product. Compared to the pure monolithic SiCN ceramic, the Young's modulus enhanced by ~11% and the electrical conductivities increased up to 0.06 S cm−1 for ceramic composite in the case of the 1 wt% SWNTs was containing. Furthermore, the electrochemical investigation shows the potential application of these SWNTs-IL/Ceramics composites in electrochemical hydrogen storage.