Synthesis, characterization, and KOH activation of nanoporous carbon for increasing CO2 adsorption capacity

Synthesis, characterization, and KOH activation of nanoporous carbon for increasing CO2... Ordered nanoporous carbons (ONCs) were prepared using a soft-templating method. To improve the CO2 adsorption efficiency, ONCs were chemically activated to obtain high specific surface area and micro-/mesopore volume with different KOH amounts (i.e., 0, 1, 2, 3, and 4) as an activating agent. The prepared nanoporous carbons (NCs) materials were analyzed by low-angle X-ray diffraction for confirmation of synthesized ONCs structures. The structural properties of the NCs materials were analyzed by high-angle X-ray diffraction. The textural properties of the NCs materials were examined using the N2/77 K adsorption isotherms according to the Brunauer–Emmett–Teller equation. The CO2 adsorption capacity was measured by CO2 isothermal adsorption at 298 K/1 bar. From the results, the NCs activated with KOH showed that the increasing specific surface areas and total pore volumes resulted in the enhancement of CO2 adsorption capacity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis, characterization, and KOH activation of nanoporous carbon for increasing CO2 adsorption capacity

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Publisher
Springer Journals
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1665-y
Publisher site
See Article on Publisher Site

Abstract

Ordered nanoporous carbons (ONCs) were prepared using a soft-templating method. To improve the CO2 adsorption efficiency, ONCs were chemically activated to obtain high specific surface area and micro-/mesopore volume with different KOH amounts (i.e., 0, 1, 2, 3, and 4) as an activating agent. The prepared nanoporous carbons (NCs) materials were analyzed by low-angle X-ray diffraction for confirmation of synthesized ONCs structures. The structural properties of the NCs materials were analyzed by high-angle X-ray diffraction. The textural properties of the NCs materials were examined using the N2/77 K adsorption isotherms according to the Brunauer–Emmett–Teller equation. The CO2 adsorption capacity was measured by CO2 isothermal adsorption at 298 K/1 bar. From the results, the NCs activated with KOH showed that the increasing specific surface areas and total pore volumes resulted in the enhancement of CO2 adsorption capacity.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: May 25, 2014

References

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