Abstract
We report the synthesis of nitrogen-doped carbon nanotubes (CNTs) by thermal chemical vapor deposition on metal substrates without additional catalyst or processing in the temperature range of 850–1000°C. Monoethanolamine was used as a source of both carbon and nitrogen. X-ray photoelectron spectroscopy revealed that the concentration of nitrogen atoms in the CNTs was 2.0–2.5%. Electron microscope images confirmed that the CNTs prepared in this temperature range all exhibited bamboo-like, corrugated structures. The crystallinity of the N-doped CNTs increased with synthesis temperature. This study suggests that simple, low cost synthesis of nitrogen-doped CNTs on metal substrates is feasible.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call