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Aqueous and Template-Free Synthesis of Meso-Macroporous Polymers for Highly Selective Capture and Conversion of Carbon Dioxide

Journal Article · · ChemSusChem
 [1];  [2];  [2];  [3]
  1. Nanchang Univ. (China)
  2. Fuzhou Univ. (China)
  3. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Meso–macroporous polymers possessing nitrogen functionality were innovatively synthesized through an aqueous and template-free route herein. In particular, the polymerization of 1-(4-vinylbenzyl)-1,3,5,7-tetraazaadamantan-1-ium chloride in aqueous solution under high temperatures induces the decomposition of the hexamethylenetetramine unit into ammonia and formaldehyde molecules, followed by the cross-linking of benzene rings through “resol chemistry”. During this process, extended meso–macroporous frameworks were constructed, and active nitrogen species were incorporated. Taking the advantage of the meso–macroporosity and nitrogen functionality, the synthesized polymers offer competitive CO2 capacities (0.37–1.58 mmol g–1 at 0 °C and 0.15 bar) and outstanding CO2/N2 selectivities (155–324 at 0 °C). Moreover, after complexed with metal ions, the synthesized polymers show excellent activity for catalyzing the cycloaddition of propylene oxide with CO2 (yield>98.5 %, turnover frequency: 612.9–761.1 h–1).
Research Organization:
Georgia Inst. of Technology, Atlanta, GA (United States). Energy Frontier Research Center (EFRC) Center for Understanding and Control of Acid Gas-induced Evolution of Materials for Energy (UNCAGE-ME)
Sponsoring Organization:
National Natural Science Foundation of China (NNSFC); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0012577
OSTI ID:
1469891
Alternate ID(s):
OSTI ID: 1399273
Journal Information:
ChemSusChem, Journal Name: ChemSusChem Journal Issue: 21 Vol. 10; ISSN 1864-5631
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English

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