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本文应用了多种电化学方法(循环伏安法,微分脉冲极谱法等)及UV光谱、GC-MS手段研究了苯亚甲基丙二腈(BDMN)在汞阴极上的还原过程.在0.03mol·L~(-1)四乙基溴化铵(TEAB)、50％二氧六环-水介质中BDMN还原的微分脉冲极谱图上有两个峰.第一个峰是此分子中的双键还原,生成苄基丙二腈引起的,峰电位在-0.98V(vs.SCE).第二个峰的峰电位在-1.55V(vs.SCE),此峰是BDMN的水解产物苯甲醛还原为苯甲醇产生的.BDMN的整个电极反应为ECEC过程.此外,对BDMN及二氧六环在汞电极上的吸附现象也进行了研究.
In this paper, a variety of electrochemical methods (cyclic voltammetry, differential pulse polarography, etc.) and UV spectroscopy, GC-MS means to study the reduction of benzylidene malononitrile (BDMN) in the mercury cathode. 0.03 mol·L -1 tetraethylammonium bromide (TEAB), and two peaks on the differential pulse polarograph of BDMN reduction in a 50% dioxane-water medium.The first peak is the molecule The reduction of the double bond yields benzylzolidinone with a peak potential of -0.98 V (vs.SCE). The second peak has a peak potential of -1.55 V (vs.SCE), which is the result of hydrolysis of BDMN The product benzaldehyde is reduced to benzyl alcohol, the whole electrode reaction of BDMN is ECEC process, and the adsorption of BDMN and dioxane on mercury electrode is also studied.