2002/08/05 by Wei‐Qiang Han, William Mickelson, John Cumings +1 · 1 citation
Materials Science · #Boron and Carbon Nanomaterials Research #MXene and MAX Phase Materials #Graphene research and applications
paper · doi:10.1063/1.1498494
openalex publication_date 2002/08/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
We demonstrate that multiwalled BxCyNz nanotubes can be efficiently converted to BN multiwalled nanotubes via an oxidation treatment. The microstructure and composition of the precursors and final products have been characterized by high-resolution transmission electron microscopy, electron energy-loss spectroscopy, and energy dispersive x-ray spectroscopy. The conversion process is monitored by thermogravimetric analysis. Carbon layers of BxCyNz nanotubes start to oxidize at 550 °C, thereby transforming BxCyNz nanotubes into pure BN nanotubes. The remarkable thermal stability of pure BN nanotubes in an oxidizing environment is also established.