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

Journal Article


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.

Publication Date


  • 2018

Citation


  • 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.

Scopus Eid


  • 2-s2.0-85042059921

Number Of Pages


  • 6

Start Page


  • 8283

End Page


  • 8289

Volume


  • 44

Issue


  • 7

Place Of Publication


  • United Kingdom

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.

Publication Date


  • 2018

Citation


  • 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.

Scopus Eid


  • 2-s2.0-85042059921

Number Of Pages


  • 6

Start Page


  • 8283

End Page


  • 8289

Volume


  • 44

Issue


  • 7

Place Of Publication


  • United Kingdom