Electrolyte effects on charge transport behavior of [Os(bpy)(2) (PVP)(10)Cl]Cl and [Ru(bpy)(2)(PVP)(10)Cl]Cl redox polymers in ultra-thin films of polyions

Wang BQ; Brown S; Rusling JF

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Electrolyte effects on charge transport behavior of [Os(bpy)(2) (PVP)(10)Cl]Cl and [Ru(bpy)(2)(PVP)(10)Cl]Cl redox polymers in ultra-thin films of polyions

机译：电解质对[Os（bpy）（2）（PVP）（10）Cl] Cl和[Ru（bpy）（2）（PVP）（10）Cl] Cl氧化还原聚合物在超薄膜中的电荷迁移行为的影响聚离子

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Metallopolymer films have important applications in electrochemical catalysis. The alternate electrostatic layer-by-layer method was used to assemble films of [Ru(bpy)(2)(PVP)(10)Cl]Cl (denoted as ClRu-PVP) and [Os(bpy)(2)(PVP)(10)Cl] Cl (ClOs-PVP) metallopolymers onto pyrolytic graphite electrodes. Film thickness estimated by quartz crystal microbalance was 6-8 run. The effects of pH, electrolyte species and concentration on the electrochemical properties of these electroactive polymers were studied using cyclic voltammetry (CV). Behavior in various electrolytes was compared. Also the mass changes within the ultra-thin film during redox of Os2+/3+ were characterized by in situ electrochemical quartz crystal microbalance (EQCM). The results indicate rapid reversible electron transfer, and show that both ClRu-PVP and ClOs-PVP have compact surface structures while ClOs-PVP is a little denser than ClRu-PVP. Although hydrogen ions do not participate in the chemical reaction of either film, the movement of Na+ cation and water accompanies the redox process of ClOs-PVP films.

机译：金属聚合物膜在电化学催化中具有重要的应用。使用交替的静电逐层方法组装[Ru（bpy）（2）（PVP）（10）Cl] Cl（表示为ClRu-PVP）和[Os（bpy）（2）（PVP）（10）Cl] Cl（ClOs-PVP）金属聚合物到热解石墨电极上。通过石英晶体微量天平估算的膜厚度为6-8nm。使用循环伏安法（CV）研究了pH，电解质种类和浓度对这些电活性聚合物的电化学性能的影响。比较了各种电解质的行为。还通过原位电化学石英晶体微量天平（EQCM）表征了Os2 + / 3 +氧化还原过程中超薄膜内的质量变化。结果表明快速可逆的电子转移，并表明ClRu-PVP和ClOs-PVP都具有致密的表面结构，而ClOs-PVP的密度比ClRu-PVP略高。尽管氢离子不参与任何一种膜的化学反应，但Na +阳离子和水的运动伴随ClOs-PVP膜的氧化还原过程。

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《Electroanalysis》 |2005年第18期|共8页
作者
Wang BQ; Brown S; Rusling JF;
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正文语种 eng
中图分类电化学、电解、磁化学;
关键词
metallopolymer; layer-by-layer; charge transport; EQCM; electrolyte effect; ultra-thin film; SELF-ASSEMBLY PROCESS; POLY(4-VINYLPYRIDINE) FILMS; ELECTROCHEMICAL PROPERTIES; COATED ELECTRODES; GLUCOSE-OXIDASE; OSMIUM COMPLEX; PROTEIN FILMS; DNA; DYNAMICS; ADSORPTION;

机译：金属聚合物;逐层;电荷传输;EQCM;电解质效应;超薄膜;自组装工艺;聚（4-乙烯基吡啶）薄膜;电化学性能;涂层电极;葡萄糖氧化酶;ID络合物;蛋白质膜;DNA;动力学;吸附;

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1. Electrolyte effects on charge transport behavior of [Os(bpy)(2) (PVP)(10)Cl]Cl and [Ru(bpy)(2)(PVP)(10)Cl]Cl redox polymers in ultra-thin films of polyions [J] . Wang BQ, Brown S, Rusling JF Electroanalysis . 2005,第18期

机译：电解质对[Os（bpy）（2）（PVP）（10）Cl] Cl和[Ru（bpy）（2）（PVP）（10）Cl] Cl氧化还原聚合物在超薄膜中的电荷迁移行为的影响聚离子
2. [Os(bpy)(2)(PVP)(10)Cl]Cl polymer and Nafion dual-film modified graphite electrode for the amperometric determination of trace amounts of norepinephrine [J] . Ni JA., Chen HY., Leech D., The Analyst: The Analytical Journal of the Royal Society of Chemistry: A Monthly International Publication Dealing with All Branches of Analytical Chemistry . 1998,第12期

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3. Molecularly flat films of the redox [Os(bpy)(2)(PVP)(5)Cl]Cl complex obtained by spontaneous adsorption at HOPG electrodes [J] . Aslan E, Campana FP, Fermin DJ, Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry . 2007,第2期

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Electrolyte effects on charge transport behavior of [Os(bpy)(2) (PVP)(10)Cl]Cl and [Ru(bpy)(2)(PVP)(10)Cl]Cl redox polymers in ultra-thin films of polyions

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