Silica supported nitrogen-enriched porous benzimidazole-linked and triazine based polymers for the adsorption of CO2

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dc.contributor.author Maruthapandi, Moorthy
dc.contributor.author Eswaran, Lakshmanan
dc.contributor.author Cohen, Reut
dc.contributor.author Perkas, Nina
dc.contributor.author Luong, John H. T.
dc.contributor.author Gedanken, Aharon
dc.date.accessioned 2020-04-15T11:38:16Z
dc.date.available 2020-04-15T11:38:16Z
dc.date.issued 2020-04-09
dc.identifier.citation Maruthapandi, M., Eswaran, L., Cohen, R., Perkas, N., Luong, J. H. T. and Gedanken, A. (2020) ‘Silica supported nitrogen-enriched porous benzimidazole-linked and triazine based polymers for the adsorption of CO2’, Langmuir. doi: 10.1021/acs.langmuir.0c00230 en
dc.identifier.issn 0743-7463
dc.identifier.uri http://hdl.handle.net/10468/9830
dc.identifier.doi 10.1021/acs.langmuir.0c00230 en
dc.description.abstract Two crystalline and five amorphous benzimidazole polymers (BINP) were synthesized and conjugated to porous silica via amine and aldehyde-based materials by a simple reflux procedure. The resulting polymers were subject to thermal analysis for monitoring and quantification of the adsorption and desorption of CO2. All the polymers were capable of adsorbing CO2 from a flowing stream of only 80 mL/min at 25 oC. The adsorbed CO2 onto the polymers were effectively desorbed at room temperature, illustrating the potential application of such polymers for repeated adsorption/desorption of CO2. The CO2 adsorption capacities of these polymers were dependent upon their nitrogen content, specific surface area, and pore size. The available nitrogen atoms for binding to the carbon of CO2 via tetrel bonds also plays an important role in the capture of this gas. Minimal and much lower CO2 adsorption was also noted with two crystalline polymers, compared to the five amorphous counterparts. Intermolecular hydrogen bonding and π-π interaction effectively prevented the polymer N sites of the crystalline polymers from interacting with polarized CO2 molecules. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Chemical Society en
dc.rights © 2020, American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir after technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/acs.langmuir.0c00230 en
dc.subject Silica-based porous benzimidazole polymer en
dc.subject Nitrogen-rich triazine polymer en
dc.subject CO2 adsorption en
dc.subject Desorption en
dc.subject Mechanism study en
dc.title Silica supported nitrogen-enriched porous benzimidazole-linked and triazine based polymers for the adsorption of CO2 en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother John Luong, Chemistry, University College Cork, Cork, Ireland. T: +353-21-490-3000 E: j.luong@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication by request of the publisher. en
dc.check.date 2021-04-09
dc.description.version Accepted Version en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Langmuir en
dc.internal.IRISemailaddress j.luong@ucc.ie en
dc.internal.bibliocheck In press. Check volume / issue / page range. Amend citation accordingly. en
dc.identifier.eissn 1520-5827


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