Molten salt electrosynthesis of silicon carbide nanoparticles and their photoluminescence property

Zhong-ya PANG, Xiang Li, Xue-qiang ZHANG, Jin-jian LI, Shu-juan Wang, Xiao-lu XIONG, Guang-shi LI, Qian Xu, Zhong-fu Zhou, Xing li ZOU, Xiong-gang Lu

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7 Citations (Scopus)
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Abstract

A one-step molten salt electrochemical strategy was proposed to synthesize SiC nanoparticles from ultra-fine silicon dioxide/carbon (SiO2/C) mixtures. The electrosynthesis process and physicochemical properties of the synthesized products were systematically analyzed via X-ray diffraction, electron microscopy, Raman spectroscopy and photoluminescence spectroscopy, etc. A combined chemical/electrochemical reaction, electrochemical deoxidation, and in-situ carbonization reaction mechanism was proposed to reveal the electrochemical synthesis process of SiC nanoparticles from SiO2/C in molten CaCl2. The as-prepared SiC with particle size ranging from 8 to 14 nm possesses a polycrystalline structure. In addition, the SiC nanoparticles demonstrate obvious photoluminescence property due to the synergetic size effect and microstructural characteristics.

Original languageEnglish
Pages (from-to)3790-3800
Number of pages11
JournalTransactions of Nonferrous Metals Society of China (English Edition)
Volume32
Issue number11
DOIs
Publication statusPublished - 05 Dec 2022

Keywords

  • deoxidation
  • molten salt electrosynthesis
  • nanomaterials
  • photoluminescence
  • SiC

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