Synthesis and characterization of high-quality double-walled carbon nanotubes by catalytic decomposition of alcohol

We report the synthesis of high-quality double-walled carbon nanotubes without defects by catalytic decomposition of alcohol over an Fe–Mo/Al2O3 catalyst; the synthesized DWNTs have outer diameters in the range of 1.52–3.54 nm and an average interlayer distance of 0.38 nm between graphene layers.