Synthesis and characterization of nanotree-like polyaniline electrode material for supercapacitors

摘要: In this work, polyamidoamine (PAMAM) dendrimers are used as templates to synthesize nanotree-like polyaniline (PANI) materials, which further electrode materials for supercapacitors. Effects of PAMAM content on PANIs’ structural characteristics and electrochemical properties investigated detailedly. SEM images show that at 0.1 % content, the PANI presents a stable self-assembled dendritic structure composed many nanorods. Compared with pure PANI, has better crystallinity, higher doping degree, larger high surface area reactivity. At current density 1 A g−1, nanotree displays specific capacitance value 812 F g−1, is 119 % than PANI. Even after 1000 cycles, it still maintains about 69 % initial capacitance, showing good stability. Thus PANIs structures promising high-performance electrical energy storage devices. Moreover, possible enhancement mechanism supercapacitor also discussed.