Efficient carbon dioxide capture over a nitrogen-rich carbon having a hierarchical micro-mesopore structure

Development of nitrogen enriched nanostructured carbon adsorbents for CO2 capture

“…All the samples have the similar functional groups. Peak at 1059 cm À1 is attributed to stretching vibration of (Chen et al, 2012). A small peak around 3000 cm À1 is also observed and can be assigned to stretching vibration of CeH bond of eCH 2 eNHeCH 2 e or eCH 2 eNHeCH 3 .…”

Carbon dioxide adsorption on nitrogen enriched carbon adsorbents: Experimental, kinetics, isothermal and thermodynamic studies

“…All samples showed a small peak at 1059 cm À1 attributed to stretching vibrations of CÀ ÀO bond in alcohol, phenol, ether or ester groups. The peaks at 1246 and 1770 cm À1 can be assigned to stretching vibrations of aromatic CÀ ÀN and C¼O bonds respectively [40]. The band at 2300 cm À1 is due to the presence of CN bonds in the prepared carbon adsorbents while the small peak around 3000 cm À1 is assigned to CÀ ÀH stretching vibration of À ÀCH 2 À ÀNHÀ ÀCH 2 À À or À ÀCH 2 À ÀNHÀ ÀCH 3 group.…”

Scalable preparation of nitrogen-enriched carbon microspheres for efficient CO2 capture

“…These values are higher than those of many reported carbon materials without activation. 34,35,[50][51][52][53][54] Further increase in nitrogen content has little effect on the CO 2 -adsorption capacity, with MRF2-C and MRF3-C being similar to MRF1-C. However excess nitrogen doping (MRF5-C and MF-C) would lower down the adsorption capacity to only 2.14 mmol g À1 at 298 K and 2.81 mmol g À1 at 273 K. This is due to the decreased surface area compensated for by the increased nitrogen content.…”