A generic method to synthesise graphitic carbon coated nanoparticles in large scale and their derivative polymer nanocomposites

Wang, Nannan; Yang, Zhuxian; Xu, Fang; Thummavichai, Kunyapat; Chen, Hongmei; Xia, Yongde; Zhu, Yanqiu

Abstract

A versatile Rotary Chemical Vapour Deposition (RCVD) technique for the in-situ synthesis of large scale carbon-coated non-magnetic metal oxide nanoparticles (NPs) is presented, and a controllable coating thickness varying between 1–5 nm has been achieved. The technique has significantly up-scaled the traditional chemical vapour deposition (CVD) production for NPs from mg level to 10 s of grams per batch, with the potential for continuous manufacturing. The resulting smooth and uniform C-coatings sheathing the inner core metal oxide NPs are made of well-crystallised graphitic layers, as confirmed by electron microscopy imaging, electron dispersive spectrum elemental line scan, X-ray powder diffractions and Raman spectroscopy. Using nylon 12 as an example matrix, we further demonstrate that the inclusion of C-coated composite NPs into the matrix improves the thermal conductivity, from 0.205 W∙m−1∙K−1 for neat nylon 12 to 0.305 W∙m−1∙K−1 for a 4 wt% C-coated ZnO composite, in addition to a 27% improvement in tensile strength at 2 wt% addition.

Citation

Wang, N., Yang, Z., Xu, F., Thummavichai, K., Chen, H., Xia, Y., & Zhu, Y. (2017). A generic method to synthesise graphitic carbon coated nanoparticles in large scale and their derivative polymer nanocomposites. Scientific Reports, 7(1), Article 11829. https://doi.org/10.1038/s41598-017-12200-1

• Journal Article Type: Article
• Acceptance Date: Sep 5, 2017
• Publication Date: Sep 19, 2017
• Deposit Date: Jun 22, 2018
• Publicly Available Date: Jun 22, 2018
• Journal: Scientific Reports
• Electronic ISSN: 2045-2322
• Publisher: Nature Publishing Group
• Peer Reviewed: Peer Reviewed
• Volume: 7
• Issue: 1
• Article Number: 11829
• DOI: https://doi.org/10.1038/s41598-017-12200-1
• Public URL: https://nottingham-repository.worktribe.com/output/883307
• Publisher URL: https://www.nature.com/articles/s41598-017-12200-1
• Contract Date: Jun 22, 2018