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요오드화 칼륨 수용액의 양극산화(제3보)-중성용액에서 Pt과 PbO2전극에 대한 Iodide의 Cyclic Voltammetry-

Anodic Oxidation of Potassium Iodide Solution(III)-Cyclic Voltammetry of Iodide on Pt and PbO2 Electrodes in Neutral Solution-

HWAHAK KONGHAK, June 1984, 22(3), 153-160(8), NONE
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Abstract

0.1 N NaClO4 전해질중에서 백금과 이산화납 전극에 대한 요오드 이온의 전극반응을 삼각파 전위 주사법으로서 검토하였다. 그 결과는 다음과 같다.
백금전극에서는 0.65, 1.15와 1.4 V vs. S.C.E에서 세 개의 산화파가 형성되었으며, 이는 I2, IO-와 IO-3의 생성 전극반응에 기인하는 것이다.
이산화납 전극에서는 1.1과 2.25 V vs. S.C.E.에서 I2와 IO3-가 생성되는 전극반응이 일어났다.
백금과 이산화납 전극에서 모두 I-이 흡착되며, I-/I2 반응계는 가역적이었다.
The oxidation of iodide at platinum and lead dioxide electrodes in 0.1 M NaClO4 electrolytes were investigated using the cyclic voltammetric technique. Results are summarized as following : (1) At platinum electrode three anodic waves of I2. IO- and IO3- was formed at 0.65, 1.15 and 1.4 V vs. S.C.E., respectively. (2) At lead dioxide electrode the formations of I2 and IO3- occured at 1.1 and 2.25 V vs. S.C.E., respectively. (3) On both electrodes of platinum and lead dioxide iodide ions are adsorbed and the reaction I-/I2 is proceeded reversibly.

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