A new carbon network is prepared using microwave plasma enhanced chemical vapor deposition(MPCVD) under the plasma of a mixture of methane, hydrogen and nitrogen at 720 °C. The Field Emission Scanning Electronic Microscopy(FESEM) images show that the carbon nanotubes are self-organized into carbon networks, which is different from the previously reported carbon nanotube ropes or nanofibers. The carbon networks are about 1 micron in diameter, more than 10 microns in length and composed of hundreds of carbon nanotubes with the diameter from 20 to 100 nm. Energy Dispersive X-Ray(EDX) results confirm that the network is carbon in nature, with a small amount of Ni which was used as catalyst.
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Yang, D.J., Zhang, Q., Yoon, S.F. et al. Carbon Networks Synthesized using Microwave Plasma Enhanced Chemical Vapor Deposition. MRS Online Proceedings Library 706, 3141 (2001). https://doi.org/10.1557/PROC-706-Z3.14.1