Holey nitrogen-doped multiwalled carbon nanotubes from extended air oxidation at low-temperature

Defect Etching in Carbon Nanotube Walls for Porous Carbon Nanoreactors: Implications for CO2 Sorption and the Hydrosilylation of Phenylacetylene

“…Yet, utilizing residual metals from the carbon nanotube growth process does not provide a versatile approach for generating defects in other carbon nanostructures and also offers no control over the location or quantity of the defects in the specific examples . Oxidation in air at elevated temperature has been shown as an efficient method to assist in controllable hole growth if defects are already present in the nanotube; however, to fully exploit this, an extra step is often required where a catalyst chemically etches pristine carbon surfaces before air oxidation . Although precious metals and the residual carbon nanotube synthesis catalysts have been exploited to generate defects in carbon nanotubes, there is a need for a more sustainable, scalable, and reliable approach for controlled defect fabrication in nanotubes.…”