TY - JOUR

T1 - Structure–Thermodynamic-Property Relationships in Cyanovinyl-Based Microporous Polymer Networks for the Future Design of Advanced Carbon Capture Materials

AU - Yassin, Ali

AU - Trunk, Matthias

AU - Czerny, Frank

AU - Fayon, Pierre

AU - Trewin, Abbie

AU - Schmidt, Johannes

AU - Thomas, Arne

N1 - 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.

PY - 2017/7/12

Y1 - 2017/7/12

N2 - 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.

AB - 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.

KW - amorphous polymer modeling

KW - carbon capture

KW - cyanovinylene microporous polymers

KW - sorption enthalpy

KW - structure–property relationships

U2 - 10.1002/adfm.201700233

DO - 10.1002/adfm.201700233

M3 - Journal article

AN - SCOPUS:85019670603

VL - 27

JO - Advanced Functional Materials

JF - Advanced Functional Materials

SN - 1616-301X

IS - 26

M1 - 1700233

ER -