Characterization of Factors Affecting Stripping Voltammetry on Thermoplastic Electrodes.
Characterization of Factors Affecting Stripping Voltammetry on Thermoplastic Electrodes.
复制标题
影响热塑性电极溶出伏安法的因素的表征。
DOI：
10.1149/1945-7111/acfa68
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发表时间：
2023
影响因子：
3.9
通讯作者：
Henry,CharlesS
中科院分区：
文献类型：
--
作者：
McMahon,CatherineJ;Martinez,Brandaise;Henry,CharlesS
热塑性碳电极（TPE）是碳复合材料电极的替代形式，其在生物传感中的应用中显示出优异的电化学性能。然而，很少有人将TPE应用于环境传感，特别是重金属分析。本文的工作重点是铅分析，并基于其电化学性能，预计TPE的性能将优于其他碳复合材料;然而，尽管测试了多种配方，但TPE的性能较差。进行了详细的电极表征，以检查电极导线感知行为不良的原因。利用X射线光电子能谱（XPS）分析了表面官能团，表明酸性和碱性官能团对铅电沉积有影响。此外，扫描电子显微镜（SEM）和电化学表征表明，粘合剂和石墨都可以影响表面形态，电活性面积和电子动力学。
Thermoplastic carbon electrodes (TPEs) are an alternative form of carbon composite electrodes that have shown excellent electrochemical performance with applications in biological sensing. However, little has been done to apply TPEs to environmental sensing, specifically heavy metal analysis. The work here focuses on lead analysis and based on their electrochemical properties, TPEs are expected to outperform other carbon composite materials; however, despite testing multiple formulations, TPEs showed inferior performance. Detailed electrode characterization was conducted to examine the cause for poor lead sensing behavior. X-ray photoelectron spectroscopy (XPS) was used to analyze the surface functional groups, indicating that acidic and alkaline functional groups impact lead electrodeposition. Further, scanning electron microscopy (SEM) and electrochemical characterization demonstrated that both the binder and graphite can influence the surface morphology, electroactive area, and electron kinetics.