Generation of multiwalled carbon nanotubes from iron–phthalocyanine polymer and their novel dielectric properties

Large-scale production of high dielectric multiwalled carbon nanotubes using iron–phthalocyanine polymer as only carbon source at ambient pressure in nitro atmosphere under 800 °C have been reported here. The dielectric properties of the synthesized carbon tubes were measured at 2–18 GHz. Furthermore, well-ordered mesostructured carbons with graphitic framework walls were conveniently obtained by continuing heating the carbon tubes to 1000 °C, the mesoporous carbons processed high BET surface of 276 m2 g−1 and narrow pore size dispersion. SEM, TEM, XRD and N2 adsorption/desorption methods were employed to figure the detail structure information of materials.