Synthesis of nitrogen-doped carbon microtubes for application in lithium batteries

We demonstrate a simple strategy to synthesize nitrogen-doped carbon microtubes with a nitrogen percentage of 7.92% by pressure-assisted chemical vapor deposition, which were characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoemission spectroscopy and Raman spectroscopy. The nitrogen-doped carbon microtubes synthesized by this feasible and efficient process display superior reversible capacity and excellent cyclic performance, thus showing potential for energy storage applications in high-performance lithium-ion batteries.