Journal of the Korean Electrochemical Society (전기화학회지)

The Korean Electrochemical Society (한국전기화학회)
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Deposition of Alkali Metal Ions at Polypyrrole Film Electrodes Modified with Fullerene

플러렌으로 수식된 피를 고분자 피막전극에 알카리 금속이온의 포집

  • Published : 2004.02.01
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Abstract

To electropolymerize Polypyrrole(ppy) film modified with fullerene $ions(full^-)$ the cell, Au/5 mM pyrrole, 1mM fullerene, 0.1M $TBABF_4,\;CH_2Cl_2/Pt$, was employed to Prepare the wafer-like type of $electrode/ppy(full^-)ppy(full^-){\ldots}$ electrodes. They were applied to deposit alkali metal ions with the cell of Au(quartz crystal analyzer; QCA)/ppy$(full^-)$, 0.01M metal ion(aq.)/Pt. The depositing rate constant of each ion for $Li^+,\;Na^+,\;K^+,\;Rb^+\;and\;Cs^+$, determined from the first order equation was $1.60\times10^{-8},\;3.13\times10^{-11},\;1.38\times10^{-9},\;2.71\times10^{-11}\;and\;2.98\times10^{-12}mo1.s^{-1}$ respectively. The calculated stoichiometry of the ions determined by quartz crystal microbalance(QCM) at the electrodes was $Li_7C_{60},\;Na_4C_{60},\;K_3C_{60},\;Rb_1C_{60}\;and\;Cs_1C_{60}$ respectively.

플러렌 이온$(full^-)$으로 수식된 피를 고분자 피막을 전기화학법으로 중합하기 위하여 사용된 전지는 Au/5mM pyrrole, 1mM fullerene, 0.1M $TBABF_4,\; CH_2C1_2/Pt$이었으며 이 전지로 $electrode/ppy(full^-)ppy(full^-){\ldots}$와 같은 웨이퍼형의 전극을 제작하였다. 이 전극을 사용한 Au(quartz crystal analyzer; QCA)/ppy$(full^-)$, 0.01M metal ion(aq.)/Pt형의 전지로 알카리 금속이온을 포집하였다. $Li^+,\;Na^+,\;K^+,\;Rb^+$ 및 $Cs^+$이온의 포집에 대한 속도상수는 일차반응 속도식으로 계산한 결과 그 값이 각각 $1.60\times10^{-8},\;3.13\times10^{-11},\;1.38\times10^{-9},\;2.71\times10^{-11}$ 및 $2.98\times10^{-12}mo1.s^{-1}$이였다. 이 전극을 수정판 미량저울(QCM)을 적용하여 결정한 각 이온의 화학양론은 $Li_7C_{60},\;Na_4C_{60},\;K_3C_{60},\;Rb_1C_{60}$ 및 $Cs_1C_{60}$이었다.

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References

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