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Colloidal processing and CO2-capture performance of hierarchically porous Al2O3-zeolite 13X composites
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).ORCID iD: 0000-0003-4888-6237
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
2012 (English)In: Journal of Ceramic Science and Technology, ISSN 2190-9385, Vol. 3, no 1, p. 9-16Article in journal (Refereed) Published
Abstract [en]

Hierarchically porous composites for CO2-capture have been produced by coating the inner walls of foam-like macroporous alumina monoliths, produced by templated synthesis, with microporous zeolite 13X particles. Homogeneous and dense coatings of the particulate adsorbent were obtained when the impregnation process was performed at a pH above 9. At this pH-level the colloidally stable suspensions of the negatively charged zeolite 13X particles could fill all the voids of the highly connected pore space of the alumina supports and attach to the monolith walls, which had been pre-coated with poly(ethylene imine). A CO2-uptake as high as 5 mmol CO2/g zeolite 13X was achieved for alumina-zeolite 13X composites through minimisation of the added inorganic binder, kaolin, to only 3.0 wt% with respect to zeolite content, and through optimisation of the thermal treatment.

Place, publisher, year, edition, pages
2012. Vol. 3, no 1, p. 9-16
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-6249DOI: 10.4416/JCST2012-00039Local ID: 4737ee19-de05-4971-b180-085dc52c5a4fOAI: oai:DiVA.org:ltu-6249DiVA, id: diva2:979126
Note
Upprättat; 2012; 20150416 (farakh)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Akhtar, Farid

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