Microporous carbon spheres modified with EDA used as carbon dioxide sorbents

Daniel Sibera, Joanna Srenscek-Nazzal, Waldemar A. Morawski, Beata Michalkiewicz, Jaroslaw Serafin, Rafal J. Wróbel, Urszula Narkiewicz*

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

DOI: 10.5185/amlett.2018.1872

Publication Date (Web): May 17, 2018

E-mail: urszula.narkiewicz@gmail.com

Abstract


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. 

Keywords

Carbon spheres, CO2 capture, EDA.

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