Author/Authors :
Eryang Xu، نويسنده , , Jinquan Wei، نويسنده , , Kunlin Wang، نويسنده , , Zhen Li، نويسنده , , Xuchun Gui، نويسنده , , Yi Jia، نويسنده , , Hongwei Zhu، نويسنده , , Dehai Wu، نويسنده ,
Abstract :
Carbon nanotube (CNT) arrays doped with nitrogen were synthesized using chemical vapor deposition by pyrolysis of xylene/pyridine and ferrocene with a modified precursor feeding technique. The system produced a gradient of nitrogen concentration that modified the CNTs from a hollow cylinder to a bamboo-shaped structure which contains a series of compartments whose lengths are gradually reduced as the nitrogen concentration increases.