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首页> 外文期刊>Russian journal of electrochemistry >Regularities of electrochemical behavior of polyaniline doped by electroactive anions
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Regularities of electrochemical behavior of polyaniline doped by electroactive anions

机译：电活性阴离子掺杂聚苯胺的电化学行为规律

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摘要

Electrochemical potentiodynamic and potentiostatic synthesis is used to obtain polyaniline (PANI) modified by new electroactive anions: organic dianion of the diammonium salt of 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfo acid) (ABTS) and inorganic ammonium hexachloroiridate dianion IrCl _6 ~(2-) (HCI). Electrochemical behavior of the modified PANI-ABTS and PANI-HCI polymers is studied by means of the meth ods of cyclic voltammetry (CV) and charge-discharge dependences. It is shown that modified PANI-ABTS and PANI-HCI remain electroactive at much higher potential sweep rates as compared to PANI doped by HSO _4 ~- (PANI-sulfo). Electrochemical capacity values are calculated on the basis of the data of CVs and discharge curves and coulombic efficiency of the new polymers that exceeds significantly the corresponding values for PANI-sulfo. This effect is enhanced when the ABTS and HCI additives are introduced into the supporting electrolyte in all electrochemical processes.
机译：电化学势能和恒电位合成用于获得由新型电活性阴离子改性的聚苯胺（PANI）：2,2'-叠氮基双（3-乙基苯并噻唑啉-6-磺酸）（ABTS）的二铵盐的有机二价阴离子和六氯铱酸铵的无机阴离子IrCl 6〜（2-）（HCl）。借助循环伏安法（CV）和充放电依赖性研究了改性的PANI-ABTS和PAN​​I-HCl聚合物的电化学行为。结果表明，与由HSO 4〜-（PANI-Sulfo）掺杂的PANI相比，改性PANI-ABTS和PAN​​I-HCl在更高的电势扫描速率下仍保持电活性。电化学容量值是根据CV和放电曲线的数据以及新聚合物的库仑效率大大超过PANI-磺基的相应值计算得出的。在所有电化学过程中，如果将ABTS和HCl添加剂引入支持电解质中，则效果会得到增强。

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