Microporous carbon spheres modified with EDA used as carbon dioxide sorbents Microporous carbon spheres modified with EDA used as carbon dioxide sorbents
Institute of Chemical and Environment Engineering, Faculty of Chemical Engineering, West Pomeranian University of Technology, 70-322 Szczecin, Pulaskiego 10, Poland
Adv. Mater. Lett., 2018, 9 (6), pp 432-435
Publication Date (Web): May 17, 2018
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Carbon spheres for CO2 adsorption were prepared using a modified Stöber method in a microwave assisted solvothermal reactor. For comparison purposes, the same preparation procedure was applied in an autoclave. A starting mixture composed of water-ethanol, ammonia water, EDA, resorcinol, potassium oxalate and formaldehyde, was stirred for 24 h at room temperature and then subjected to a pressure treatment in an autoclave (24 h at 100oC) or in a microwave solvothermal reactor (15 min under 2 MPa). The material with EDA prepared in the solvothermal reactor exhibited high CO2 adsorption capacities, up to 5 mmol/g under ambient conditions and 6.6 mmol/g at 0 oC.
Carbon spheres, CO2 capture, EDA.