In this study, the impact of incorporating ethylenediamine (ED)-functionalized metal-organic frameworks (MOFs) on enhancing the electrochemical performance of polypyrrole(PPy)-based conducting polymers as supercapacitor electrode materials was investigated. The stability of terephthalic acid-containing MOFs in different environments, including exposure to acids, relies on the specific metal ions and ligands utilized in their construction. In this research, ED treatment was chosen for its resistance to acid attack. Unlike the post-synthetic modifications observed in previous literature regarding ED-modified MOF5, this study introduces a unique approach where ED is directly integrated into the framework in a single step. The resulting materials, referred to as ED-MOF, were employed in creating a novel composite material concurrently with polypyrrole, designed for use as electrode materials in supercapacitor applications. The optimal loading in the electrochemical preparation of polypyrrole-based conducting polymers was determined using cyclic voltammetry and electrochemical impedance spectroscopy techniques. Areal capacitance for the resulting electrodes was evaluated through cyclic charge-discharge experiments. The areal capacitance of the ED-ZnMOF/1@/PPy/PGE electrode was found to be 575.2 mF.cm at a charge/discharge current density of 1 mA.cm. This research underscores the potential advantages of combining conducting polymers and metal-organic frameworks in supercapacitors, as well as other electrochemical systems.

中文翻译：

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乙二胺功能化金属有机框架作为电化学超级电容器添加剂的应用

在本研究中，研究了掺入乙二胺（ED）功能化金属有机框架（MOF）对增强聚吡咯（PPy）基导电聚合物作为超级电容器电极材料的电化学性能的影响。含对苯二甲酸的 MOF 在不同环境中（包括暴露于酸中）的稳定性取决于其结构中使用的特定金属离子和配体。在这项研究中，选择 ED 治疗是因为它能抵抗酸侵蚀。与之前文献中观察到的有关 ED 修饰 MOF5 的合成后修饰不同，本研究引入了一种独特的方法，其中 ED 一步直接整合到框架中。由此产生的材料被称为 ED-MOF，用于与聚吡咯同时创建一种新型复合材料，设计用作超级电容器应用中的电极材料。使用循环伏安法和电化学阻抗谱技术确定了聚吡咯基导电聚合物电化学制备中的最佳负载量。通过循环充放电实验评估所得电极的面积电容。在充电/放电电流密度为1 mA·cm时，ED-ZnMOF/1@/PPy/PGE电极的面积电容为575.2 mF·cm。这项研究强调了在超级电容器以及其他电化学系统中结合导电聚合物和金属有机框架的潜在优势。