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Structured emulsion-templated porous copolymer based on photopolymerization for carbon capture
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-4628-3857
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0003-4888-6237
2017 (engelsk)Inngår i: Journal of CO2 Utilization, ISSN 2212-9820, E-ISSN 2212-9839, Vol. 21, s. 473-479Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Porous hydrogel copolymers of acrylamide (AAM) and acrylic acid (AAC) were structured in the form of monoliths and granules. AAM-co-AAC porous copolymer monoliths were synthesized using high internal phase emulsion (HIPE) as template and photopolymerization. For granulation, photopolymerization was used for the fabrication of the AAM-co-AAC hydrogel, which was subsequently freeze-granulated. The structural analysis (FTIR and XRD) confirmed the successful synthesis of hydrogel copolymers. The CO2 uptake capacity of structured AAM-co-AAC copolymers was evaluated through adsorption and absorption mechanisms by volumetric and gravimetric methods, respectively. The granules exhibited the CO2 adsorption uptake of 0.8 mmol g-1 at 25 kPa and 298 K. The CO2 and N2 adsorption data demonstrated that the hydrogel copolymers were selective for CO2. Furthermore, the granules were capable of capturing CO2 in the presence of water. The results of absorption of CO2 on water-swollen granules demonstrated that CO2-uptake capacity increases with increasing water content up to 1.8 mmol g-1.

sted, utgiver, år, opplag, sider
Elsevier, 2017. Vol. 21, s. 473-479
HSV kategori
Forskningsprogram
Materialteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-65516DOI: 10.1016/j.jcou.2017.08.007ISI: 000411443200053Scopus ID: 2-s2.0-85028456006OAI: oai:DiVA.org:ltu-65516DiVA, id: diva2:1138727
Merknad

Validerad;2017;Nivå 2;2017-09-06 (andbra)

Tilgjengelig fra: 2017-09-06 Laget: 2017-09-06 Sist oppdatert: 2018-03-05bibliografisk kontrollert

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Nikjoo, DariushAkhtar, Farid

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