期刊
ADVANCED MATERIALS
卷 29, 期 27, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201700445
关键词
CO2 capture and conversion; molecular sieves; nitrogen functionality; ordered mesoporosity; solvent-free synthesis
类别
资金
- Center for Understanding and Control of Acid Gas-Induced Evolution of Materials for Energy (UNCAGE-ME), an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0012577]
- National Natural Science Foundation of China [21573150, 21203122]
- Natural Science Foundation of Zhejiang Province [LY15B030002]
- Nanchang University
A solvent-free induced self-assembly technology for the synthesis of nitrogen-doped ordered mesoporous polymers (N-OMPs) is developed, which is realized by mixing polymer precursors with block copolymer templates, curing at 140-180 degrees C, and calcination to remove the templates. This synthetic strategy represents a significant advancement in the preparation of functional porous polymers through a fast and scalable yet environmentally friendly route, since no solvents or catalysts are used. The synthesized N-OMPs and their derived catalysts are found to exhibit competitive CO2 capacities (0.67-0.91 mmol g(-1) at 25 degrees C and 0.15 bar), extraordinary CO2/N-2 selectivities (98-205 at 25 degrees C), and excellent activities for catalyzing conversion of CO2 into cyclic carbonate (conversion >95% at 100 degrees C and 1.2 MPa for 1.5 h). The solvent-free technology developed in this work can also be extended to the synthesis of N-OMP/SiO2 nanocomposites, mesoporous SiO2, crystalline mesoporous TiO2, and TiPO, demonstrating its wide applicability in porous material synthesis.
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