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Chinese Journal of High Pressure Physics  > 2012  >  26(6): 627-631.
YAN Hong-Hao, XI Shu-Xiong, LI Xiao-Jie, WANG Xiao-Hong, HUANG Xian-Chao. Study on the Influence of Gaseous Deflagration Preparing Nano-SiO2 with Different Relative Mole Amounts of Precursor[J]. Chinese Journal of High Pressure Physics, 2012, 26(6): 627-631. doi: 10.11858/gywlxb.2012.06.005
Citation: YAN Hong-Hao, XI Shu-Xiong, LI Xiao-Jie, WANG Xiao-Hong, HUANG Xian-Chao. Study on the Influence of Gaseous Deflagration Preparing Nano-SiO2 with Different Relative Mole Amounts of Precursor[J]. Chinese Journal of High Pressure Physics, 2012, 26(6): 627-631. doi: 10.11858/gywlxb.2012.06.005
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Study on the Influence of Gaseous Deflagration Preparing Nano-SiO2 with Different Relative Mole Amounts of Precursor

doi: 10.11858/gywlxb.2012.06.005

  • State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116023, China

  • Received Date: 29 May 2011
  • Rev Recd Date: 15 Feb 2012
  • Publish Date: 15 Dec 2012
    Abstract
  • Taking SiCl4 as the precursor and the mixtures of hydrogen and oxygen as the explosion source, the influence on the product was investigated by changing the relative molecular mass of precursor. Through X-ray fluorescence (XRF), X-ray diffraction (XRD) and transmission electron microscopy (TEM), the structure, composition and size distribution of the detonation product were characterized and analyzed. The XRF characterization shows that the obtained product is mainly SiO2 and this product purity is above 99.9%. The XRD characterization indicates that the nano-SiO2 powder belongs to the typical amorphous structure. The TEM images show that with the increasing of the relative molecular mass of precursor, the product were bonding gradually and its dispersion was reduced. The relative mole ratio of precursors should be controlled within 1.5.

     

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