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首页> 外文期刊>International Journal of Electrochemical Science >Fabrication of Self Adsorbed 3-mercapto-1-propane sulfonic acid-Nano Ag particles modified Electrode and Electroanalytical Applications
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Fabrication of Self Adsorbed 3-mercapto-1-propane sulfonic acid-Nano Ag particles modified Electrode and Electroanalytical Applications

机译：自吸附3-巯基-1-丙烷磺酸-纳米银粒子修饰电极的制备及电分析应用

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摘要

A novel and easy fabrication of MPS-nano Agafion (NF) film modified sensor has been constructedbased on the self adsorption of 3-mercapto-1-propane sulfonic acid (MPS) over a pretreated glassycarbon electrode (GCE) followed by the electrochemical depositions of Ag nano particles (nano Ag)with manual nafion coating (5 L). Further the MPS-nano Ag/NF film modified semiconductor indiumtin oxide electrodes (ITO) were examined by using SEM and AFM techniques. From these analyses, itwas found that the nano Ag particles were uniformly deposited on the MPS layer and the sizes were inthe range of 20 to 70 nm. Further the nano Ag/NF film deposited onto the self adsorbed surface ofMPS exhibits excellent electrocatalytic activity for the oxygen reduction reaction (ORR) at a reducedpotential (-0.4 V). Proposed MPS-nano Ag/NF film modified GCE is easy to fabricate and has theadvantage of good stability, reproducibility, and shows rapid response for oxygen reduction,respectively.
机译：基于3-巯基-1-丙烷磺酸（MPS）在预处理玻碳电极（GCE）上的自吸附，然后进行电化学反应，构建了新颖且易于制造的MPS-纳米银/纳菲（NF）膜修饰传感器手动nafion涂层（5 L）沉积Ag纳米颗粒（纳米Ag）。此外，通过使用SEM和AFM技术检查了MPS-纳米Ag / NF薄膜改性的半导体氧化铟锡电极（ITO）。从这些分析中发现，纳米Ag颗粒均匀地沉积在MPS层上，并且尺寸在20至70nm的范围内。此外，沉积在MPS自吸附表面上的纳米Ag / NF膜在降低的电势（-0.4 V）下对氧还原反应（ORR）表现出出色的电催化活性。所提出的MPS-纳米Ag / NF膜改性的GCE易于制造，并且具有良好的稳定性，可重复性的优点，并且分别显示出对氧还原的快速响应。

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