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CO2 capture using three-dimensionally ordered micromesoporous carbon
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SYSNO ASEP 0506115 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title CO2 capture using three-dimensionally ordered micromesoporous carbon Author(s) Vorokhta, Maryna (USMH-B) ORCID, SAI
Morávková, Jaroslava (UFCH-W) RID, ORCID
Řimnáčová, Daniela (USMH-B) ORCID, SAI
Pilař, Radim (UFCH-W) RID, ORCID
Zhigunov, Alexander (UMCH-V) RID, ORCID
Švábová, Martina (USMH-B) ORCID
Sazama, Petr (UFCH-W) RID, ORCIDSource Title Journal of CO2 Utilization . - : Elsevier - ISSN 2212-9820
Roč. 31, May 2019 (2019), s. 124-134Number of pages 11 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords 3DOmm carbon ; Carbon dioxide ; Adsorption ; Kinetics ; Isosteric heat Subject RIV DI - Air Pollution ; Quality OECD category Environmental sciences (social aspects to be 5.7) Subject RIV - cooperation Institute of Macromolecular Chemistry - Macromolecular Chemistry
J. Heyrovsky Institute of Physical Chemistry - Physical ; Theoretical ChemistryR&D Projects LM2015073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support USMH-B - RVO:67985891 ; UFCH-W - RVO:61388955 ; UMCH-V - RVO:61389013 UT WOS 000464979200013 EID SCOPUS 85063101834 DOI 10.1016/j.jcou.2019.03.001 Annotation Adsorption of CO2 on three-dimensionally ordered micromesoporous carbon with a spherical pore structure has been studied using gravimetric and manometric analyses. Adsorptive properties were compared with activated carbon and nanostructured carbon materials such as carbon nanotubes, zeolitic-imidazolate framework-derived carbon, carbon nanohorns and ordered mesoporous carbon materials. The regular spherical pores of 14-15 nm diameter with a large pore volume of 3.4 cm(3) g(-1) provided a very high CO2 adsorption capacity exceeding the compared carbon materials at high gas pressures (>= 4 MPa and room temperature). A strong increase in the isosteric heat of CO2 adsorption with increasing surface coverage indicates that high pressure adsorption was predominantly controlled by strong quadrupole moment interactions between CO2 molecules and less intensive interactions of CO2 with the mesoporous surface. Micropores in the walls of the main spherical mesopores, with a pore volume of 0.17 cm(3) g(-1), provided good CO2 adsorption properties at atmospheric pressure, characterized by rectilinear isotherms and a predominant surface coverage mechanism. Analysis of the strength of CO2 interaction with the carbon adsorbent and a kinetic study of CO2 adsorption revealed excellent CO2 adsorption-desorption reversibility. Workplace Institute of Rock Structure and Mechanics Contact Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Year of Publishing 2020 Electronic address https://www.sciencedirect.com/science/article/pii/S2212982018310060?dgcid=author
Number of the records: 1