Multifunctional porous SiC nanowire scaffolds

Chen, Yu, Ola, Oluwafunmilola, Liu, Guangsheng, Han, Lei, Hussain, Mian Zahid, Thummavichai, Kunyapat, Wen, Jiahao, Zhang, Linyi, Wang, Nannan, Xia, Yongde and Zhu, Yanqiu (2021) Multifunctional porous SiC nanowire scaffolds. Journal of the European Ceramic Society, 41 (7). pp. 3970-3979. ISSN 0955-2219

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Porous SiC nanowire (SiCNW) ceramics have great potentials for engineering applications. We herein report the fabrication of 3D SiCNW scaffolds with tuneable microstructures, densities, and therefore properties, by regulating the solid loading content in the reticulated melamine foam (MF) template and finalizing with a modified carbothermal reaction. We first demonstrate the resulting samples exhibiting high strength (modulus up to ∼167.3 kPa), good recoverability (11% residual strain and 72% maximum stress after 100 compressive cycles at a ε = 20%), low thermal conductivity of 32−54 mW m−1 K−1 at room temperature, and good fire retardance performance. We further show that these unique and tuneable SiCNW scaffolds could act as efficient organic solvent/oil absorbent, as excellent support for MOF-derived TiO2-C catalyst to achieve enhanced photocatalytic performance, and as competent electromechanical strain sensors. These multifunctionalities could find niche applications in energy and environment devices.

Item Type: Article
Additional Information: The present work was supported by the National Natural Science Foundation of China (Grant No 51972068) and Key Laboratory of New Processing Technology for Nonferrous Metals and Materials (Guangxi University).
Uncontrolled Keywords: Melamine foam, SiC nanowire, Absorbent, Catalyst support, Strain sensor
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: John Coen
Date Deposited: 08 Oct 2021 13:29
Last Modified: 08 Oct 2021 13:30

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