College of chemistry and chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022 (P.R. China).
State Key Lab of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Road, Changchun 130022 (P.R. China).
Sci Rep. 2013 Dec 20;3:3568. doi: 10.1038/srep03568.
Here we reported a novel route to synthesize a hierarchical nanocomposite (PANI-frGO) of polyaniline (PANI) nanowire arrays covalently bonded on reduced graphene oxide (rGO). In this strategy, nitrophenyl groups were initially grafted on rGO via C-C bond, and then reduced to aminophenyl to act as anchor sites for the growth of PANI arrays on rGO. The functionalized process was confirmed by atomic force microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and thermogravimetric analysis. The electrochemical properties of the PANI-frGO as supercapacitor materials were investigated. The PANI-frGO nanocomposites showed high capacitance of 590 F g(-1) at 0.1 A g(-1), and had no loss of capacitance after 200 cycles at 2 A g(-1). The improved electrochemical performance suggests promising application of the PANI-frGO nanocomposites in high-performance supercapacitors.
在这里，我们报道了一种合成聚吡咯纳米线阵列的分级纳米复合材料（PANI-frGO）的新途径，该复合材料通过共价键结合在还原氧化石墨烯（rGO）上。在该策略中，首先通过 C-C 键将硝基苯基接枝到 rGO 上，然后还原为氨基苯基，作为 PANI 阵列在 rGO 上生长的锚定点。通过原子力显微镜、扫描电子显微镜、傅里叶变换红外光谱、拉曼光谱和热重分析证实了功能化过程。研究了作为超级电容器材料的 PANI-frGO 的电化学性能。PANI-frGO 纳米复合材料在 0.1 A g(-1)时表现出 590 F g(-1)的高电容，在 2 A g(-1)时经过 200 次循环后没有电容损失。改进的电化学性能表明，PANI-frGO 纳米复合材料在高性能超级电容器中有很好的应用前景。
