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首页> 外文期刊>International Journal of Electrochemical Science >One-step Synthesis of Spherical Polyaniline/Graphene Composites by Microemulsion for Supercapacitors
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One-step Synthesis of Spherical Polyaniline/Graphene Composites by Microemulsion for Supercapacitors

机译：微乳液一步法合成球形聚苯胺/石墨烯复合材料

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摘要

A simple approach to achieve microspherical polyaniline/graphene (PANI/rGO) composites bymicroemulsion has been developed, and the composites are further used as electrode materials forsupercapacitors. Compared to other methods, microemulsion polymerization is a thermodynamicallystable and easy-processing method, where the formed micelles act as ft templatesto form thestable morphologies according to the type and concentration of surfactants. The one-step process isthat water-dispersible GO is directly added into the SDS micelles during the microemulsionpolymerization. The spherical SDS micelles just attach on the GO nanosheets with large lateral size,while the small GO nanosheets may embed into internal of the micelles. So, the as-preparedPANI/rGO composites have two probable ideal structures. Due to their unique architecture and thesynergistic effect between PANI and graphene, the as-prepared PANI/rGO composites show the maximum electrochemical capacity of 495.9 F g at 0.5 A g , excellent rate capability and improvedcycling stability.
机译：已经开发了一种通过微乳液制备微球形聚苯胺/石墨烯（PANI / rGO）复合材料的简单方法，该复合材料还被用作超级电容器的电极材料。与其他方法相比，微乳液聚合是一种热力学稳定且易于加工的方法，其中形成的胶束充当ft模板以根据表面活性剂的类型和浓度形成稳定的形态。一步过程是在微乳液聚合过程中将水分散性GO直接添加到SDS胶束中。球形SDS胶束仅附着在横向尺寸较大的GO纳米片上，而小的GO纳米片可能嵌入胶束内部。因此，所制备的PANI / rGO复合材料具有两种可能的理想结构。由于其独特的结构和PANI与石墨烯之间的协同作用，所制得的PANI / rGO复合材料在0.5 A g的条件下显示出495.9 F g的最大电化学容量，优异的倍率性能和改善的循环稳定性。

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