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Volume 35 Issue 5
Sep 2021
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Chinese Journal of High Pressure Physics  > 2021  >  35(5): 053201.
ZHAO Tiejun, WANG Zifa, YAN Honghao, WANG Xiaohong, LI Xiaojie. Dynamic Collection and Micro-Growth Mechanism of TiO2 Nanoparticles in Gaseous Detonation Reaction[J]. Chinese Journal of High Pressure Physics, 2021, 35(5): 053201. doi: 10.11858/gywlxb.20210746
Citation: ZHAO Tiejun, WANG Zifa, YAN Honghao, WANG Xiaohong, LI Xiaojie. Dynamic Collection and Micro-Growth Mechanism of TiO2 Nanoparticles in Gaseous Detonation Reaction[J]. Chinese Journal of High Pressure Physics, 2021, 35(5): 053201. doi: 10.11858/gywlxb.20210746
shu

Dynamic Collection and Micro-Growth Mechanism of TiO2 Nanoparticles in Gaseous Detonation Reaction

doi: 10.11858/gywlxb.20210746
  • 1.

    School of Civil Engineering and Architecture, Henan University, Kaifeng 475004, Henan, China

  • 2.

    Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, Liaoning, China

  • Received Date: 15 Mar 2021
  • Rev Recd Date: 07 Apr 2021
    Abstract
  • During the preparation of nano TiO2 particles via the gaseous detonation method, a portable nano-powder collection platform was located inside the gaseous detonation tube where the nano-TiO2 powders were collected based on the detonation reaction. The growth mechanism of gaseous detonation preparing nanoparticles was investigated experimentally for the first time. The results demonstrated that the TiO2 powders collected from platform and detonation tube wall consisted of rutile and anatase phases, and the particle size of TiO2 from platform is much smaller than that of tube wall. The particle size was significantly affected by the distance from platform to the end of detonation tube, and the closer the distance, the smaller the TiO2 particle size. The growth mechanism of nanoparticles prepared via gaseous detonation method was revealed based on the theory of detonation/shock wave propagation and experimental observation in detonation tube.

     

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