Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Electrochemical Properties of Langmuir-Blodgett(LB) Monolayer Films of Alkyl Bromides Mixture

브롬화 알킬혼합물 단분자 LB막의 전기화학적 특징

  • Son, Tae-Chul (Dept of Chemical Engineering, Changwon National University) ;
  • Kim, Duck-Sool (Dept. of Biomedical Engineering, Tongmyong University) ;
  • Park, Keun-Ho (Dept of Chemical Engineering, Changwon National University)
  • 손태철 (창원대학교 화공시스템공학과) ;
  • 김덕술 (동명대학교 의용공학과) ;
  • 박근호 (창원대학교 화공시스템공학과)
  • Received : 2010.04.23
  • Accepted : 2010.06.21
  • Published : 2010.06.30
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Abstract

We investigated the electrochemical properties for Langmuir-Blodgett(LB) films mixed with l-bromotetradecane(Cl4), l-bromohexadecane(Cl6), and l-bromooctadecane(Cl8). The alkyl bromides mixture was deposited by using the Langmuir-Blodgett method on the ITO glass. The electrochemical properties measured by using cyclic voltammetry with a three-electrode system(an Ag/AgCl reference electrode, a platinum wire counter electrode and LB film-coated ITO working electrode) at various concentrations(0.5, 1.0, 1.5 and 2.0 N) of $NaClO_4$ solution. A measuring range was reduced from initial potential to -1350 m V, continuously oxidized to 1650 mV. The scan rate was 100 mV/s. As a result, LB films of Cl4, Cl6, and Cl8 mixture monolayers appeared irreversible process caused by only the oxidation current from the cyclic voltammogram. The diffusivity(D) effect of LB films decreased with increasing of alkyl bromides amount.

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References

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