대한금속재료학회지 (Korean Journal of Metals and Materials)

  • 제49권5호
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  • Pages.400-405
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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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전기화학적 방법에 의한 산화아연 나노튜브의 합성과 형성 기구

Synthesis and Formation Mechanism of ZnO Nanotubes via an Electrochemical Method

  • 문진영 (경북대학교 공과대학 신소재공학부) ;
  • 김형훈 (경북대학교 공과대학 신소재공학부) ;
  • 이호성 (경북대학교 공과대학 신소재공학부)
  • Moon, Jin Young (School of Materials Science and Engineering, Kyungpook National University) ;
  • Kim, Hyunghoon (School of Materials Science and Engineering, Kyungpook National University) ;
  • Lee, Ho Seong (School of Materials Science and Engineering, Kyungpook National University)
  • 투고 : 2010.12.24
  • 발행 : 2011.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

ZnO nanotube arrays were synthesized by a two-step process: electrodeposition and selective dissolution. In the first step, ZnO nanorod arrays were grown on an Au/Si substrate by using a homemade electrodeposition system. ZnO nanorod arrays were then selectively dissolved in an etching solution composed of 0.125 M NaOH, resulting in hollow ZnO nanotube arrays. It is suggested that the formation mechanism of the ZnO nanotube arrays might be attributed to the preferred surface adsorption of hydroxide ion ($OH^{-1}$) on a positive polar surface followed by selective dissolution of the metastable Zn-terminated ZnO (0001) polar surface caused by the difference in the surface energy per unit area between the ZnO nanorod and nanotube.

키워드

과제정보

연구 과제 주관 기관 : 한국연구재단

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