Structure–Thermodynamic-Property Relationships in Cyanovinyl-Based Microporous Polymer Networks for the Future Design of Advanced Carbon Capture Materials

Yassin, Ali and Trunk, Matthias and Czerny, Frank and Fayon, Pierre and Trewin, Abbie and Schmidt, Johannes and Thomas, Arne (2017) Structure–Thermodynamic-Property Relationships in Cyanovinyl-Based Microporous Polymer Networks for the Future Design of Advanced Carbon Capture Materials. Advanced Functional Materials, 27 (26). ISSN 1616-301X

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Abstract

Nitrogen-rich solid absorbents, which have been immensely tested for carbon dioxide capture, seem until this date to be without decisive molecular engineering or design rules. Here, a family of cyanovinylene-based microporous polymers synthesized under metal-catalyzed conditions is reported as a promising candidate for advanced carbon capture materials. These networks reveal that isosteric heats of CO2 adsorption are directly proportional to the amount of their functional group. Motivated by this finding, polymers produced under base-catalyzed conditions with tailored quantities of cyanovinyl content confirm the systematical tuning of their sorption enthalpies to reach 40 kJ mol−1. This value is among the highest reported to date in carbonaceous networks undergoing physisorption. A six-point-plot reveals that the structure–thermodynamic-property relationship is linearly proportional and can thus be perfectly fitted to tailor-made values prior to experimental measurements. Dynamic simulations show a bowl-shaped region within which CO2 is able to sit and interact with its conjugated surrounding, while theoretical calculations confirm the increase of binding sites with the increase of PhCC(CN)Ph functionality in a network. This concept presents a distinct method for the future design of carbon dioxide capturing materials.

Item Type:
Journal Article
Journal or Publication Title:
Advanced Functional Materials
Additional Information:
This is the peer reviewed version of the following article: Yassin, A., Trunk, M., Czerny, F., Fayon, P., Trewin, A., Schmidt, J., Thomas, A., Adv. Funct. Mater. 2017, 27, 1700233. https://doi.org/10.1002/adfm.201700233 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/adfm.201700233 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600/1603
Subjects:
ID Code:
138136
Deposited By:
Deposited On:
07 Nov 2019 16:25
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Sep 2020 05:47