Synthesis of 3D interconnected porous carbon/polyaniline nanocomposites for high-performance supercapacitors
발표자
()
초록
내용
Recently, 3D interconnected porous carbon (IPC) obtained directly from pyrolysis of potassium citrate salts are of great interest for energy applications, since their shape not only provides high accessible surface area and consequently more exposed active sites but also facilitates ion transport for high-rate capability. In this work, we synthesized the 3D IPC/polyaniline (PANI) nanowires nanocomposites via a simple in-situ polymerization growth of vertically aligned PANI nanowires arrays on the IPC. The nanocomposites showed excellent specific capacitance of 512 F·g-1 at a discharge current density of 1 A·g-1. In addition, the as-assembled asymmetric supercapacitor based on the nanocomposites also exhibits good capacitive properties and long-term cycling stability of 91% after 3000 cycles at 5 A·g-1. Therefore, the cost-effective preparation process and high electrochemical performance, the IPC/PANI nanocomposite has potential as practical electrode materials for supercapacitors.