School of Chemical and Biological Engineering, College of Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea.
Nanoscale. 2019 Mar 28;11(13):6462-6470. doi: 10.1039/c9nr00427k.
Recently, flexible energy devices have been used to power up portable electronics such as E-skins, smart clothes, and bendable displays. However, the usage of rigid and inactive components in electrode materials limits the application in flexible energy devices. Here, we report a novel method to fabricate porous polyaniline composites (Pt_CPPy/PANI:CSA) using Pt decorated carboxyl polypyrrole nanoparticles (Pt_CPPyNPs) as a nucleating agent for electrodes of supercapacitors. The specific capacitance and electrical conductivity of the Pt_CPPy/PANI:CSA film are 325.0 F g-1 and 814 S cm-1, respectively, which are much higher than those of the pristine PANI:CSA film. Furthermore, the porous PANI:CSA composites exhibit excellent rate capability and cycling stability as the pores in the PANI structure enhance the active surface area between PANI and the ions of the electrolytes. This unique fabrication technique is an effective approach for preparing large scale highly porous polyaniline nanomaterials for diverse electrochemical applications.
最近，柔性能源设备被用于为电子皮肤、智能服装和可弯曲显示器等便携式电子产品供电。然而，电极材料中刚性和非活性组件的使用限制了其在柔性能源设备中的应用。在这里，我们报告了一种使用 Pt 修饰的羧酸基聚吡咯纳米粒子 (Pt_CPPyNPs) 作为超级电容器电极的成核剂来制备多孔聚苯胺复合材料 (Pt_CPPy/PANI:CSA) 的新方法。Pt_CPPy/PANI:CSA 薄膜的比电容和电导率分别为 325.0 F g-1 和 814 S cm-1，远高于原始 PANI:CSA 薄膜。此外，多孔 PANI:CSA 复合材料表现出优异的倍率性能和循环稳定性，因为 PANI 结构中的孔增加了 PANI 与电解质离子之间的有效表面积。这种独特的制备技术是制备用于各种电化学应用的大规模高多孔聚苯胺纳米材料的有效方法。
