Scaling up the production of vertically aligned, single-walled carbon nanotubes

https://phys.org/news/2022-10-scaling-production-vertically-aligned-single-walled.html

"bulk diffusion gaseous carbon precursor invariant over range process conditions... vertically oriented SWCNTs retained quality when increasing precursor concentration up to 30-fold, catalyst substrate area from 1 cm2 to 180 cm2, growth pressure from 20 to 790 Mbar and gas flowrates eight-fold... growth kinetics accelerated using lighter bath gas aid precursor diffusion... CNT growth recipe and fluid dynamics conditions increase production throughput 6-fold and carbon conversion efficiency 90%"