Microwave Activation of Electrochemical Processes in Ionic Liquid Impregnated Ionomer Spheres

Dale S.E.C.; Compton R.G.; Marken F.

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Microwave Activation of Electrochemical Processes in Ionic Liquid Impregnated Ionomer Spheres

机译：离子液体浸渍离聚物球体中电化学过程的微波活化

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The redox system K _4Fe(CN) _6 adsorbed into anion exchanger particles (Dowex 1×2 of typically 200μm diameter) and impregnated with 1-butyl-3-methyl-imidazolium tetrafluoroborate ionic liquid (BMIM ~+BF _4 ~-) in contact to a 50μm diameter platinum microelectrode show well-defined Fe(III/II) voltammetric responses. Processes are studied at the ionic liquid sphere | electrode | gas interface in the presence of dry or 80% relative humidity argon gas flow. Due to the hygroscopic nature of BMIN ~+BF _4 ~- currents are sensitive to humidity levels. Pulsed and continuous microwave activation (2.45GHz) is shown to occur locally at the tip of the platinum microelectrode due to focusing of microwave energy. Impedance experiments reveal the presence of a thin active film of ionic liquid.

机译：氧化还原体系K _4Fe（CN）_6吸附到阴离子交换剂颗粒中（直径为200μm的Dowex 1×2），并浸渍有接触接触的1-丁基-3-甲基咪唑四氟硼酸根离子液体（BMIM〜+ BF _4〜-）直径为50μm的铂微电极显示出明确的Fe（III / II）伏安法响应。在离子液体领域研究过程电极|气体界面在干燥或相对湿度为80％的氩气存在下进行。由于BMIN〜+ BF _4〜-的吸湿性，电流对湿度水平敏感。由于微波能量的聚集，脉冲和连续微波激活（2.45GHz）显示为局部发生在铂微电极的尖端。阻抗实验表明存在离子液体活性薄膜。

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《Electroanalysis》 |2012年第5期|共6页
作者
Dale S.E.C.; Compton R.G.; Marken F.;
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正文语种 eng
中图分类电化学、电解、磁化学;
关键词
Electroanalysis; Ferrocyanide; Ionic liquids; Microelectrode; Microwave; Molecular gas sensor; Solid state voltammetry;

机译：电分析;亚铁氰化物;离子液体;微电极;微波;分子气体传感器;固态伏安法;

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Microwave Activation of Electrochemical Processes in Ionic Liquid Impregnated Ionomer Spheres

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