Fabrication of novel micro-nano carbonous composites based on self-made hollow activated carbon fibers

▸ Hollow pipe and porous HACF with solid carbon net framework structure were successfully prepared by template method. ▸ CNTs were grown successfully on the self-made HACF substrate by CVD techniques. ▸ A novel tree-like micro-nano carbonous structure CNTs/HACF was fabricated. ▸ The formation mechanism of micro phase HACF and nano phase CNTs were respectively discussed.