caa a22 4500 463170156 CHVBK 20180406164810.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10450-007-9065-x doi (NATIONALLICENCE)springer-10.1007/s10450-007-9065-x Preparation and structure characterization of carbons prepared from resorcinol-formaldehyde resin by CO2 activation [Elektronische Daten] [M. Elsayed, P. Hall, M. Heslop] In this work, carbon xerogels with a high pore volume and surface area (up to 2.58cm3/g and 3200m2/g respectively) have been synthesized using the sol-gel polycondensation of resorcinol (R) with formaldehyde (F) in a basic medium of monoethanolamine (MEA), followed by drying and pyrolysis. This medium (MEA) has not been used in previous investigations. The effect of activation with CO2 on the pore size distribution and the chemical functional groups has been investigated using N2 (77K) adsorption, FTIR and elemental analysis techniques. A series of experiments has been conducted to investigate the effect of activation time and activation temperature. Activation of the samples was carried out at850, 900and 980 °C for times ranging from one to three hours. Within the range of activation conditions, an increase in activation time at 850 °C results in a continuous steady rise of the BET surface area and total pore volume. However, at the two higher temperatures, the surface area shows a maximum when plotted against activation time. FT-IR results show that the use of MEA as a catalyst leads to the formation of nitrogen functional groups in the surface of the resin. Springer Science+Business Media, LLC, 2007 Activated carbon nationallicence Xerogels nationallicence CO2 activation nationallicence Elsayed M. Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, G1 1XJ, Glasgow, Scotland aut Hall P. Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, G1 1XJ, Glasgow, Scotland aut Heslop M. Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, G1 1XJ, Glasgow, Scotland aut Adsorption Springer US; http://www.springer-ny.com 13/3-4(2007-08-01), 299-306 0929-5607 13:3-4<299 2007 13 10450 https://doi.org/10.1007/s10450-007-9065-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10450-007-9065-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Elsayed M. Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, G1 1XJ, Glasgow, Scotland aut NATIONALLICENCE 700 1- Hall P. Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, G1 1XJ, Glasgow, Scotland aut NATIONALLICENCE 700 1- Heslop M. Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, G1 1XJ, Glasgow, Scotland aut NATIONALLICENCE 773 0- Adsorption Springer US; http://www.springer-ny.com 13/3-4(2007-08-01), 299-306 0929-5607 13:3-4<299 2007 13 10450 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer