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Main Title: Structure–Thermodynamic‐Property Relationships in Cyanovinyl‐Based Microporous Polymer Networks for the Future Design of Advanced Carbon Capture Materials
Author(s): Yassin, Ali
Trunk, Matthias Georg
Czerny, Frank
Fayon, Pierre
Trewin, Abbie
Schmidt, Johannes
Thomas, Arne
Type: Article
Language Code: en
Is Part Of: 10.14279/depositonce-7165
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-CC=(CN)-Ph functionality in a network. This concept presents a distinct method for the future design of carbon dioxide capturing materials.
Issue Date: 2017
Date Available: 2-Apr-2019
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Subject(s): amorphous polymer modeling
carbon capture
cyanovinylene microporous polymers
sorption enthalpy
structure–property relationships
Sponsor/Funder: EC/FP7/278593/EU/Organic Zeolites/ORGZEO
Journal Title: Advanced functional materials
Publisher: Wiley-VCH
Publisher Place: Weinheim
Volume: 27
Issue: 26
Article Number: 1700233
Publisher DOI: 10.1002/adfm.201700233
EISSN: 1616-3028
ISSN: 1616-301X
Appears in Collections:FG Funktionsmaterialien » Publications

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