In Situ synthesis of SiC-graphene core-shell nanoparticles using wet ball milling

Authors

Jiangshan Zhang, University of WollongongFollow
Shufeng Yang, University of Science and Technology
Zhixin Chen, University of WollongongFollow
Yi Yan, University of WollongongFollow
Jingwei Zhao, University of WollongongFollow
Jingshe Li, University of Science and Technology
Zhengyi Jiang, University of WollongongFollow

RIS ID

122181

Publication Details

Zhang, J., Yang, S., Chen, Z., Yan, Y., Zhao, J., Li, J. & Jiang, Z. (2018). In Situ synthesis of SiC-graphene core-shell nanoparticles using wet ball milling. Ceramics International, 44 (7), 8283-8289.

Abstract

A wet ball milling route was used to synthesise SiC-graphene core-shell nanoparticles in situ from graphite and SiC nanoparticles. Graphite flakes were gradually exfoliated into fresh graphene nanosheets (GNSs) without significant defects, which is attributed to mechanical shearing and moderate impaction forces between graphite flakes, milling balls and SiC nanoparticles during the wet milling. The non-destructive exfoliation is characterised by Raman, Fourier transform infrared and X-Ray photoelectron spectroscopies. The freshly produced GNSs are energetically unstable and thin enough to be flexible and this drives the in situ attaching and scrolling of GNSs on the SiC nanoparticles. The SiC nanoparticles and GNSs are well dispersed in the wet medium and the SiC nanoparticles are individually wrapped. It has been estimated that > 50% of the produced GNSs are wrapped around the SiC nanoparticles and these GNSs are generally ≤ 6 layers.