Electrochemical Properties of Metal Aluminum and Its Application

금속알루미늄의 전기화학적 성질과 응용

  • Tak, Yongsug (Department of Chemical Engineering, Inha University) ;
  • Kang, Jinwook (Department of Chemical Engineering, Inha University) ;
  • Choi, Jinsub (Nanomaterials Application Division, Korea Institute of Ceramic Engineering and Technology)
  • 탁용석 (인하대학교 화학공학과) ;
  • 강진욱 (인하대학교 화학공학과) ;
  • 최진섭 (한국요업기술원 나노소재팀)
  • Received : 2006.08.02
  • Published : 2006.08.10

Abstract

Metal aluminum, of which has a low standard reduction potential, participates in the electrochemical oxidation reaction and results in the structural change and accompanying property variation of aluminum and its oxide film. Aluminum was electrochemically etched in acid solution and the surface area was magnified by the formation of high density etch pits. Etched aluminum was covered with a compact and dense dielectric oxide film by anodization and applied to the capacitor electrode. Anodization of aluminum in acid solution at low temperature makes a nanoporous aluminum oxide layer which can be used for the fabrication template of nanostructural materials. Electrochemical characteristics of aluminum turn the metal aluminum into functional materials and it will bring the diverse applications of metal aluminum.

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