Nitrogen-enriched and hierarchically porous carbon macro-spheres – ideal for large-scale CO₂ capture

Abstract

Nitrogen-containing millimeter-scale polymer spheres are produced from poly(acrylonitrile-<italic>co</italic>-acrylamide) with a facile and efficient spheridization method. After carbonisation and chemical activation by KOH, the resulting carbon spheres show a hierarchically porous structure, with a high nitrogen content and excellent CO₂ capture performance, indicating its great potential in large-scale CO₂ capture applications.