Supercapacitor electrodes based on nano-polyaniline deposited on hollow carbon spheres derived from cross-linked co-polymers
作者：Kuiwen Shen, Fen Ran*, Xuanxuan Zhang,Lingbin Kong, Long Kang, Shaowei Chen*
關(guān)鍵字：Co-polymer,no-polyaniline, Hollow carbon spheres, Supercapacitor
論文來源：期刊
具體來源：Synthetic Metals
發(fā)表時(shí)間：2015年
Nano-polyaniline (nano-PANI) was deposited on hollow carbon spheres (HCS) to prepare nano-PANI/HCS
composites via in-situ chemical polymerization. The composites combined the high pseudocapacitance
of nano-PANI and the excellent porous structure of HCS which were prepared by the carbonization of a
cross-linked co-polymer, poly(styrene-co-divinylbenzene-co-methylacrylic acid). The structure and
properties of the resulting composites were characterized by Fourier-transform infrared spectroscopy
(FTIR) and nitrogen (N2) adsorption measurements, and the electrochemical behaviors were examined in
1 M H2SO4 aqueous solution. Morphology was studied by scanning electron microscopy (SEM) and
transition electron microscopy (TEM). SEM and FTIR characterizations reveal that nano-PANI was
successfully deposited on the surface of HCS; and electrochemical tests indicated that the nano-PANI/HCS
composites exhibited a high specific capacitance of 435.0 F g1, along with good long-term cyclic stability
(60% retention after 2000 cycles).