A cost-effective synthesis of heteroatom-doped porous carbons as efficient CO2 sorbents.

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Details zur Publikation

Autorinnen und Autoren: Ashourirad B, Arab P, Islamoglu T, Cychosz KA, Thommes M, El-Kaderi HM
Zeitschrift: Journal of Materials Chemistry A
Verlag: Royal Society of Chemistry
Jahr der Veröffentlichung: 2016
Band: 4
Heftnummer: 38
Seitenbereich: 14693-14702-14702
ISSN: 2050-7488


Carbon dioxide release into the atm. from fossil fuel burning has been identified as the major reason behind global warming. This has triggered immense interest in developing cost-efficient methods and materials for CO2 capture in recent years. In this study, benzimidazole was used as an inexpensive and com. available single source precursor for carbon and nitrogen to successfully produce heteroatom-doped porous carbons (BIDCs) with remarkable CO2 capture properties. Our synthetic protocol involves solid-state addn. of potassium hydroxide to the benzimidazole precursor to prevent its evapn. and subsequent carbonization-activation of the nonvolatile powdery mixt. to ensure simultaneous porosity formation and heteroatom doping. The porous structure and heteroatom doping level can be controlled by tuning the KOH/benzimidazole ratio and carbonization temp. The highest CO2 uptake values at 0.1 bar (1.60 mmol g-1), 1 bar (5.46 mmol g-1), and 30 bar (28.10 mmol g-1) were realized for three different carbons at 298 K. These diverse CO2 capture performances originate from a unique combination of surface chem. and porous architecture for each BIDC. The carbon materials are regenerable and highly promising for CO2 sepn. or storage. [on SciFinder(R)]

Zusätzliche Organisationseinheit(en)
Lehrstuhl für Thermische Verfahrenstechnik

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Ashourirad, B., Arab, P., Islamoglu, T., Cychosz, K.A., Thommes, M., & El-Kaderi, H.M. (2016). A cost-effective synthesis of heteroatom-doped porous carbons as efficient CO2 sorbents. Journal of Materials Chemistry A, 4(38), 14693-14702-14702. https://dx.doi.org/10.1039/C6TA06251B

Ashourirad, Babak, et al. "A cost-effective synthesis of heteroatom-doped porous carbons as efficient CO2 sorbents." Journal of Materials Chemistry A 4.38 (2016): 14693-14702-14702.


Zuletzt aktualisiert 2019-15-03 um 09:49