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Hanging meniscus rotating disk electrode: A theoretical perspective
Electrochimica Acta ( IF 5.5 ) Pub Date : 2019-10-10 , DOI: 10.1016/j.electacta.2019.135032
Franco M. Zanotto , Manuel López Teijelo , Sergio A. Dassie

The hanging meniscus rotating disk has been proposed as a useful experimental configuration for enhancing mass transfer in electrochemical reactions mainly involving monocrystalline electrodes. Notwithstanding its common use, few authors have focused on the study of hydrodynamics in this system and its effect on mass transport. Using computational simulations based on the finite element method, a theoretical study of this configuration is presented. The effect of mass transport in the hanging meniscus on the electrochemical signal is evaluated. The reduction of the accessible electroactive area of the electrode due to the hydrodynamic conditions of the fluid near the electrode surface is presented as the explanation for the different experimentally observed phenomena. In addition, the effect of the shape of the meniscus formed on the electrochemical signal is analysed.



中文翻译:

悬挂弯月面转盘电极的理论观点

已经提出了悬挂弯月面旋转盘作为在主要涉及单晶电极的电化学反应中增强传质的有用实验配置。尽管具有普遍用途,但很少有作者专注于研究该系统中的流体动力学及其对质量输运的影响。使用基于有限元方法的计算仿真,对该结构进行了理论研究。评估了悬液弯月面中传质对电化学信号的影响。由于在电极表面附近的流体的流体动力学条件,电极可触及的电活性区域的减少被提出来解释不同的实验观察到的现象。此外,

更新日期:2019-10-10
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