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UV-Visible and Plasmonic Nanospectroscopy of the CO2 Adsorption Energetics in a Microporous Polymer
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Number of Authors: 4
2015 (English)In: Analytical Chemistry, ISSN 0003-2700, E-ISSN 1520-6882, Vol. 87, no 20, 10161-10165 p.Article in journal (Refereed) Published
Abstract [en]

In the context of carbon capture and storage (CCS), micro- and mesoporous polymers have received significant attention due to their ability to selectively adsorb and separate CO2, from gas streams. The performance of such materials is critically dependent on the isosteric heat of adsorption (Q(st)) of CO2, directly related to the interaction strength between CO2, and the adsorbent. Here, we show using the microporous polymer PIM-1 as a model system that its Q(st) can be conveniently determined by in situ UV-vis optical transmission spectroscopy directly applied on the adsorbent or, with higher resolution, by indirect nanoplasmonic sensing based on localized surface plasmon resonance in metal nanoparticles. Taken all together, this study provides a general blueprint for efficient optical screening of micro- and mesoporous polymeric materials for CCS in terms of their CO2, adsorption energetics and kinetics.

Place, publisher, year, edition, pages
2015. Vol. 87, no 20, 10161-10165 p.
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:su:diva-123524DOI: 10.1021/acs.analchem.5b03108ISI: 000363348300001OAI: oai:DiVA.org:su-123524DiVA: diva2:874973
Available from: 2015-11-30 Created: 2015-11-27 Last updated: 2015-11-30Bibliographically approved

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Xu, ChaoHedin, Niklas
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