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Formation of a gold nanoparticle layer for the electrodes of ionic polymer-metal composites by electroless deposition process

机译:通过化学沉积工艺形成用于离子聚合物-金属复合材料电极的金纳米颗粒层

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摘要

We investigated the reduction conditions of Au-deposited ionic polymer-metal composites (IPMCs) to form gold (Au) electrodes on the surface of a sulfonated tetrafluoroethylene-based fluoropolymer-copolymer (Nafion), as the ionic polymer membrane, through the electroless deposition of nanoparticles (NPs) layer. The size and distribution of Au NPs formed on the surface of the ionic polymer varied depending on the concentration from 0.25 to 1 mM of sodium L-ascorbate aqueous reducing agent solution and reduction duration of up to 6 hrs. The size and distribution of the Au NPs with different reduction conditions were confirmed to be closely related to the thickness and uniformity of the Au IPMC electrodes. Changes in the Au NP layer formed on the surface of the Nafion entailed changes in the electrical resistance and electromechanical behavior of the IPMCs with Au electrodes.
机译:我们研究了金沉积的离子型聚合物金属复合物(IPMC)的还原条件,通过无电沉积在作为离子型聚合物膜的磺化四氟乙烯基含氟聚合物共聚物(Nafion)的表面上形成金(Au)电极纳米颗粒(NPs)层。离子聚合物表面上形成的Au NP的大小和分布取决于L-抗坏血酸钠还原剂水溶液的浓度(从0.25到1 mM)和最多6个小时的还原时间。证实具有不同还原条件的Au NP的尺寸和分布与Au IPMC电极的厚度和均匀性密切相关。在Nafion表面上形成的Au NP层的变化必然导致带有Au电极的IPMC的电阻和机电行为发生变化。

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