Journal of the Korean Electrochemical Society (전기화학회지)

The Korean Electrochemical Society (한국전기화학회)
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Chloride Ion Effects on Anodic Dissolution of Copper in Aqueous NaCl Solutions under Argon Atmosphere

아르곤 분위기의 NaCl 수용액에서 구리의 산화 용해반응에 미치는 염화이온의 영향

  • Chon, Jung-Kyoon (Department of Chemistry, College of Natural Science, Hankuk University of Foreign Studies) ;
  • Kim, Youn-Kyoo (Department of Chemistry, College of Natural Science, Hankuk University of Foreign Studies)
  • 천정균 (한국외국어대학교 자연과학대학 화학과) ;
  • 김연규 (한국외국어대학교 자연과학대학 화학과)
  • Published : 2008.08.31
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Abstract

We investigated chloride ion effects on anodic dissolution of copper using potentiodynamic method, cyclic voltammtery, chronoamperometry and chronocoulometry. The anodic dissolution reaction of copper in NaCl solution under argon atmosphere is $Cu+2Cl^{-}{\rightleftharpoons}{CuCl_2}^{-}+e^-$ and chloride ion adsorption process in copper surface can be explained by Temkin isotherm.

변전위법, 순환전압전류법, 대시간전류법 및 대시간전기량법을 이용하여 구리의 산화 용해반응에 미치는 $Cl^-$의 영향을 조사하였다. 아르곤 분위기의 NaCl 수용액에서 Cu의 산화 용해반응은 전반응식 $Cu+2Cl^{-}{\rightleftharpoons}{CuCl_2}^{-}+e^-$ 에 따라 일어나며, Cu 표면에 $Cl^-$가 흡착하는 과정에 잘 맞는 등온식은 Temkin 흡착등온식 임을 알 수 있었다.

Keywords

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