camphorsulfonic acid doped polyaniline(PANI-CSA) nano-tubes and nano-fibrils fabricated by interfacial polymerization (IP) without templates The SEM and TEM images revealed that the average diameter of obtained polymer nano-tubes or nano-fibrils was about 100 nm.It is proved that the lower concentrations of aniline and dopant were liable to the PANI-CSA nono-tube or nano-fibrils formation.Furthermore
charging-discharging tests fevealed the good electrochemical capacitance performance of PANI-CSA nano-tubes.Their specific capacitance was as hish as 249 F/g at 5mA discharging compared to that of the fibrous PANI-CSA (217 F/g at 5mA) and the granular PANI-CSA(176 F/g at 5mA).