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首页> 外文期刊>Advanced Functional Materials >Ion-Selective Electrocatalysis on Conducting Polymer Electrodes: Improving the Performance of Redox Flow Batteries
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Ion-Selective Electrocatalysis on Conducting Polymer Electrodes: Improving the Performance of Redox Flow Batteries

机译：导电聚合物电极的离子选择性电常放分析：提高氧化还原电池的性能

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摘要

The selective ion transport characteristics of a conducting polymer electrode, based on poly(3,4-ethylenedioxythiophene) (PEDOT), is evaluated with respect to its electrocatalytic performance, specifically targeting redox switching of quinone couples. Employing model organic redox quinones, here, the novel phenomenon of ion-selective electrocatalysis (ISEC) is conceptualized. The effect of ISEC is studied and evaluated using two forms of PEDOT electrodes, which differ in their ion-exchange characteristics, by comparing the redox transformations of catechol and tiron. It is rationalized that the choice of the specific redox couple and the ion selectivity characteristics of the conducting polymer electrode impacts the activation losses in aqueous organic redox-flow batteries. By carefully selecting and designing the conducting polymer electrodes, high conversion efficiency on acid-resistant electrodes is obtained. As far as it is known, this is the first redox flow battery to include conducting polymer electrodes operating in both the posolyte and negolyte configurations, thus the first "all-organic" RFBs.
机译：基于聚（3,4-亚乙二氧基噻吩）（PEDOT）的电导聚合物电极的选择性离子传输特性是关于其电催化性能，特别是靶向醌耦合的氧化还原切换。使用模型有机氧化还原醌，这里，离子选择性电常分（ISEC）的新颖现象是概念化的。使用两种形式的佩特电极研究和评估ISEC的效果，通过比较儿茶酚和Tiron的氧化还原转化，其离子交换特性不同。合理化的是，特定氧化还原耦合的选择和导电聚合物电极的离子选择性特性会影响水性有机氧化还原电池水溶液中的活化损失。通过仔细选择和设计导电聚合物电极，获得耐酸电极的高转化效率。如众所周知，这是第一种用于包括在Posolyte和否定细节配置中操作的聚合物电极，因此是第一“全有机”RFB。

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