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The effect of graphite type on the synthesis of SiC nanomaterials by microwave-assisted synthesis

Authors
  • Mat Kahar, Suhaimi1
  • Voon, Chun Hong1
  • Lim, Bee Ying2
  • Gopinath, Subash C. B.1, 3
  • Al-Douri, Yarub4, 5
  • MD Arshad, Mohd Khairuddin1
  • Foo, Kai Loong1
  • Parmin, Nor Azizah1
  • Ten, Seng Teik6
  • 1 Institute of Nanoelectronic Engineering, Universiti Malaysia Perlis, Seriab, Kangar, Perlis, 01000, Malaysia , Kangar (Malaysia)
  • 2 Universiti Malaysia Perlis, Jejawi, Arau, Perlis, 02600, Malaysia , Arau (Malaysia)
  • 3 Universiti Malaysia Perlis, Arau, Perlis, 02600, Malaysia , Arau (Malaysia)
  • 4 Nanotechnology and Catalysis Research Center (NANOCAT), University of Malaya, Kuala Lumpur, 50603, Malaysia , Kuala Lumpur (Malaysia)
  • 5 Bahcesehir University, Besiktas, Istanbul, 34349, Turkey , Istanbul (Turkey)
  • 6 Malaysian Agricultural Research and Development Institute, Serdang, 43400, Malaysia , Serdang (Malaysia)
Type
Published Article
Journal
Applied Physics A
Publisher
Springer-Verlag
Publication Date
Aug 27, 2020
Volume
126
Issue
9
Identifiers
DOI: 10.1007/s00339-020-03916-5
Source
Springer Nature
Keywords
License
Yellow

Abstract

SiC nanomaterial (SiCNM) is known for its excellent properties and has great potential for a wide range of applications. In this article, preparation of SiCNMs from different types of graphite was performed by microwave-assisted synthesis. Different types of graphite which are graphite flake (GF) and expanded graphite (EG) were used to react with silica for the synthesis of SiCNMs in laboratory microwave furnace at 1400 °C. It was found that SiC nanowhiskers (SiCNWs) were formed when EG was used, while irregular shaped SiC nanoparticles (SiCNPs) were formed when GF was used. β-SiC appeared as the only phase in the XRD patterns for both SiCNMs formed using GF and EG. SiCNWs and SiCNPs have interplanar spacing of around 0.25 nm which is the axial direction of [111]. The difference of formation mechanism is believed to be the origin of different morphology of SiCNMs synthesized from different types of graphite.

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