퓰러렌으로 수식된 피롤 고분자 피막전극에 알카리 금속이온의 포집
Depostion of Alkali Metal Ions at Polypyrrole Film Electrods Modified with Fullerene
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2 N(full-)b >B b ª¶ bïj *Vz»b 7~V *~ ÒÏB *æº Au/5 mM pyrrole, 1 mM fullerene, 0.1 M TBABF4, CH2Cl2/Ptîb *æ electrode/ppy(full-)ppy(full-)...f ?f ¢;~ * j B·~& . * j ÒÏ Au(quartz crystal analyzer; QCA)/ppy(full-), 0.01 M metal ion(aq.)/Pt;~ *æ rÒ .³Nj ÷~& . Li+, Na+, K+, Rb+ 5 Cs+ N~ ÷ö & ³êç>º ¢N>w ³êb êÖ Ö" 8 '' 1.60Ü10-8, 3.13Ü10-11, 1.38Ü10-9, 2.71Ü10-11 5 2.98Ü10-12 mol.s-1& . * j >;6 ï&Þ(QCM)j 'Ï~ Ö; ' N~ z·f Li7C60, Na4C60, K3C60, Rb1C60 5 Cs1C60î .
Abstract
To electropolymerize polypyrrole(ppy) film modified with fullerene ions(full-) the cell, Au/5 mM pyrrole, 1 mM fullerene, 0.1 M TBABF4, CH2Cl2/Pt, was employed to prepare the wafer-like type of electrode/ppy(full-) ppy(full-)... electrodes. They were applied to deposit alkali metal ions with the cell of Au(quartz crystal analyzer; QCA)/ppy(full-), 0.01 M 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 1.60Ü10-8, 3.13Ü10-11, 1.38Ü10-9, 2.71Ü10-11 and 2.98Ü10-12 molÁs-1 respectively. The calculated stoichiometry of the ions determined by quartz crystal microbalance(QCM) at the electrodes was Li7C60, Na4C60, K3C60, Rb1C60 and Cs1C60 respectively.