Impact of Post-Synthesis Modification of Nanoporous Organic Frameworks on Selective Carbon Dioxide Capture

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. The work described herein describes post-synthesis modification of Nanoporous Organic Frameworks (NPOFs) and its impact on gas storage and selective CO2 capture. The synthesis of NPOF-4 was accomplished via a catalysed cyclotrimerization reaction of 1,3,5,7-tetrakis(4-acetylphenyl)adamantane in Ethanol/Xylenes mixture using SiCl4 as a catalyst. NPOF-4 is microporous and has high surface area (SABET = 1249 m2 g-1). Post-synthesis modification of NPOF-4 by nitration afforded (NPOF-4-NO2) and subsequent reduction resulted in an amine-functionalized framework (NPOF-4-NH2) that exhibits improved gas storage capacities and high CO2/N2 (139) and CO2/CH4 (15) selectivities compared to NPOF-4 under ambient conditions. These results demonstrate the impact of nitro- and amine- pore decoration on the function of porous organic materials in gas storage and separation application.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Chemistry

Year dc:date.available

2012

Author dc:creator

• İslamoğlu, Timur

Contributors dc:contributor

• Hani M. El-Kaderi

• post-synthesis modification
• porous organic polymers
• carbon dioxide capture
• CO2 capture
• hydrogen storage
• gas separation
• natural gas purification
• Chemistry
• Physical Sciences and Mathematics

Statement dc:rights

• © The Author

Identifier

https://scholarscompass.vcu.edu/etd/454

OAI identifier oai:identifier

oai:scholarscompass.vcu.edu:etd-1453