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制备了对甲苯磺酸铜并首次用于电化学实验.差示扫描量热和热重曲线测定表明,对甲苯磺酸铜结晶容易脱除全部结晶水,无水盐在空气中不潮解.用循环伏安曲线、计时电流曲线和恒电流电解后的电位-时间曲线研究Cu(Ⅱ)在二甲基亚砜(DMSO)溶液中的电还原.结果表明,Cu(II)电还原为Cu的反应分两步进行,其中第一步是可逆过程.测定了Cu(II)在DMSO溶液中的扩散系数.
Copper p-toluenesulfonate was prepared and used for electrochemical experiments for the first time.The results of differential scanning calorimetry (DSC) and thermogravimetric analysis showed that the copper (III) p-toluenesulfonate was easy to remove all crystal water and the anhydrous salt did not deliquesce in air The electrochemical reduction of Cu (Ⅱ) in dimethylsulfoxide (DMSO) solution was investigated by cyclic voltammetry, chronoamperometry and potentiostatic-time curves after galvanostatic electrolysis. The results show that the reduction of Cu (II) to Cu The reaction proceeded in two steps, the first of which was a reversible process.The diffusion coefficient of Cu (II) in DMSO solution was determined.