New process converts carbon dioxide into carbon nanotubes before 3D printing them into high-density carbon nanocomposites

https://www.chemistryworld.com/news/carbon-dioxide-converted-into-carbon-nanotube-based-3d-printer-ink/4020755.article

"electrolysis/ thermochemical reactor reduces carbon dioxide into carbon monoxide, channelled into thermochemical reactor, steel wool catalyst converts into carbon nanotubes (38% by weight), used in 3D printer creating strong/ lightweight high-quality thermoset carbon nanocomposites... 90% cost reduction in carbon nanotube production... transport, construction"

Related: Breakthrough catalyst turns carbon dioxide into essential ingredient for clean fuels
https://www.eurekalert.org/news-releases/1104117