期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 1, 期 35, 页码 10259-10266出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta12305g
关键词
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资金
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-SC0002576]
- Ministry of National Education of Turkey
- U.S. Department of Energy (DOE) [DE-SC0002576] Funding Source: U.S. Department of Energy (DOE)
Porous organic polymers containing nitrogen-rich building units are among the most promising materials for selective CO2 capture and separation applications that impact the environment and the quality of methane and hydrogen fuels. In this study, we report on post-synthesis modification of nanoporous organic frameworks (NPOFs) and its impact on gas storage (H-2, CH4, CO2) and selective CO2 binding over N-2 and CH4 under ambient conditions. The synthesis of NPOF-4 was accomplished via acid catalyzed cyclotrimerization reaction of 1,3,5,7-tetrakis(4-acetylphenyl)adamantane in ethanol/xylenes. NPOF-4 is microporous and has high surface area (SA(BET) - 1249 m(2) g(-1)). Post-synthesis modification of NPOF-4 by nitration afforded NPOF-4-NO2 and its subsequent reduction resulted in an amine-functionalized framework NPOF-4-NH2 that exhibits improved gas storage capacities and very high CO2/N-2 (139) and CO2/CH4 (15) selectivities compared to NPOF-4.
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