Synthesis of Pt/alloy Nanoparticles by Electrical Wire Explosion in Liquid Media and its Characteristics

액중 전기선 폭발 공정을 이용한 Pt/alloy 하이브리드 나노입자의 제조 및 그 특성

  • Koo, Hye Young (Powder Technology Department, Korea Institute of Materials Science) ;
  • Yun, Jung-Yeul (Powder Technology Department, Korea Institute of Materials Science) ;
  • Yang, Sangsun (Powder Technology Department, Korea Institute of Materials Science) ;
  • Lee, Hye-Moon (Powder Technology Department, Korea Institute of Materials Science)
  • 구혜영 (한국기계연구원 부설 재료연구소 분말기술연구실) ;
  • 윤중열 (한국기계연구원 부설 재료연구소 분말기술연구실) ;
  • 양상선 (한국기계연구원 부설 재료연구소 분말기술연구실) ;
  • 이혜문 (한국기계연구원 부설 재료연구소 분말기술연구실)
  • Published : 2012.06.30

Abstract

The electrical wire explosion process in liquid media is promising for nano-sized metal and/or alloy particles. The hybrid Pt/Fe-Cr-Al and Pt/Ni-Cr-Fe nanoparticles for exhaust emission control system are synthesized by electrical wire explosion process in liquid media. The alloy powders have spherical shape and nanometer size. According to the wire component, while Pt/Fe-Cr-Al nanoparticles are shown the well dispersed Pt on the Fe-Cr-Al core particle, Pt/Ni-Cr-Fe nanoparticles are shown the partially separated Pt on the Ni-Cr-Fe core particle. Morphologies and component of two kinds of hybrid nano catalyst particles were characterized by transmission electron microscope and energy dispersive X-ray spectroscopy analysis.

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