대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제29권12호
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  • Pages.1329-1334
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  • 2005
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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초음속 노즐을 이용한 금속 나노 입자의 생성에서 이온 핵의 영향

Effects of Ion Nuclei in the Metallic Nanoparticle Generation Using a Supersonic Nozzle

  • 정재희 (한국과학기술원 기계공학과) ;
  • 김상수 (한국과학기술원 기계공학과)
  • 발행 : 2005.12.01
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초록

Synthesis of silver nanoparticles by the supersonic nozzle expansion method with corona discharge ions was investigated. Corona discharge ions functioned as seeds for heterogeneous nucleation in the silver nanoparticles formation process and provided silver nanoparticles with electronic repulsive force that prevents aggregation of the particles. For ion ejecting, we used sonic-jet corona discharger. Upon application of the corona discharge ions, the mean diameter of the produced particles was decreased from 12.54 to 6.22nm and the standard deviation was decreased from 5.02 to 3.34nm. In addition, the agglomeration of silver nanoparticles was reduced.

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참고문헌

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