摘要
以Pt、Pd及几种Pd-离子注入材料为电极使用CV和ESR法研究了2EAQ在DMSO中的电化学还原作用。阐明了两个电子迁移步骤所具有的准可逆性质及其后续均相化学反应。提出了电化学还原作用的历程,计算了有关步骤的动力学参数。对体系中水含量的影响进行了测量,讨论了质子给予体的作用。通过实验结果的对比,提出了在2EAQ还原中以Pd-离子注入材料代替金属Pd催化剂的可能性。
The process of electrochemical reduction of 2EAQ in DMSO is studied using CVand ESR methods in this work, Pt, Pd and some implanted materials are used as electrodes. Thequasi-rever+sible property of two electron transfer steps and their following homogeneous chemicalreactions are illustrated,The mechanism of the electrochemical red uction of 2 EAQ and the kineticparameters of the related steps are obtained. Having measured the influence of water content in thesystem, the effect of the proton donor is discussed. After comparising the experimental results witheach other these experiments gives us the idea that the replacement of metal Pd or some Pd-catalystswith pd-implanted materials in 2 EAQ reduction is possible.
出处
《电化学》
CAS
CSCD
1995年第2期173-180,共8页
Journal of Electrochemistry
关键词
电化学还原
循环伏安法
ESR
乙基蒽醌
Electrochemical redcuction, cyclic voltammetry,electron spin resonance,ion-implantatio,electropred uctive radical,2-ethylan-thraq uinone