대한금속재료학회지 (Korean Journal of Metals and Materials)

  • 제49권12호
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  • Pages.950-955
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  • 2011
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  • 1738-8228(pISSN)
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  • 2288-8241(eISSN)
대한금속재료학회 (The Korean Institute of Metals and Materials)
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산화에 의한 중공형 구리 산화물 나노입자 제조

Synthesis of Hollow Cu Oxide Nanoparticles by Oxidation

  • 이정구 (한국기계연구원 부설 재료연구소 기능재료연구본부) ;
  • 백연경 (한국기계연구원 부설 재료연구소 기능재료연구본부) ;
  • 정국채 (한국기계연구원 부설 재료연구소 기능재료연구본부) ;
  • 최철진 (한국기계연구원 부설 재료연구소 기능재료연구본부)
  • Lee, Jung-Goo (Functional Materials Division, Korea Institute of Materials Science) ;
  • Baek, Youn-Kyoung (Functional Materials Division, Korea Institute of Materials Science) ;
  • Chung, Kook-Chae (Functional Materials Division, Korea Institute of Materials Science) ;
  • Choi, Chul-Jin (Functional Materials Division, Korea Institute of Materials Science)
  • 투고 : 2011.08.12
  • 발행 : 2011.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the present study, the formation of hollow Cu oxide nanoparticles through the oxidation process at temperatures from 200 to $300^{\circ}C$ has been studied by transmission electron microscopy with Cu nanoparticles produced by the plasma arc discharge method. The Cu nanoparticles had a thin oxide layer on the surface at room temperature and the thickness of this oxide layer increased during oxidation in atmosphere at $200-300^{\circ}C$ However, the oxide layer consisted of $Cu_2O$ and CuO after oxidation at $200^{\circ}C$ whereas this layer was comprised of only CuO after oxidation at $300^{\circ}C$ On the other hand, hollow Cu oxide nanoparticles are obtained as a result of vacancy aggregation in the oxidation processes, resulting from the rapid outward diffusion of metal ions through the oxide layer during the oxidation process.

키워드

과제정보

연구 과제 주관 기관 : 재료연구소

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