Exploring the chemical activation effects of CsHCO3 in preparing N-doped carbonaceous CO2 adsorbents

In the current work, highly porous carbons were prepared from CsHCO3 activation of glucosamine hydrochloride derived hydrochar. Carbon materials with surface area of 1251-2746 m2/g were obtained at high yield of 42.5-49.9%. The carbons demonstrated remarkable CO2 adsorption capabilities at both 1 and 20 bar. At 25 degrees C, an impressively high CO2 uptake of 4.64 mmol/g was achieved, and it increased to 22.12 mmol/g at 20 bar. The current work shows that CsHCO3 can be used as a highly effective activator in preparing porous carbons for CO2 adsorption.

Automated summary

In this study, highly porous carbons were prepared by activating glucosamine hydrochloride derived hydrochar with CsHCO3. Carbon materials with surface area of 1251-2746 m2/g were obtained at a yield of 42.5-49.9%. The carbons showed remarkable CO2 adsorption capabilities at both 1 and 20 bar. At 25 degrees C, a high CO2 uptake of 4.64 mmol/g was achieved, which increased to 22.12 mmol/g at 20 bar. This work demonstrates that CsHCO3 can be used as an effective activator for preparing porous carbons for CO2 adsorption.