Systematic Postsynthetic Modification of Nanoporous Organic Frameworks for Enhanced CO2 Capture from Flue Gas and Landfill Gas

Timur Islamoglu; Tong Kim; Zafer Kahveci; Oussama M. El-Kadri; Hani M. El-Kaderi

doi:10.1021/acs.jpcc.5b12247

Systematic Postsynthetic Modification of Nanoporous Organic Frameworks for Enhanced CO₂ Capture from Flue Gas and Landfill Gas

Timur Islamoglu, Tong Kim, Zafer Kahveci, Oussama M. El-Kadri, Hani M. El-Kaderi^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

Controlled postsynthetic nitration of NPOF-1, a nanoporous organic framework constructed by nickel(0)-catalyzed Yamamoto coupling of 1,3,5-tris(4-bromophenyl)benzene, has been performed and is proven to be a promising route to introduce nitro groups and to convert mesopores to micropores without compromising surface area. Reduction of the nitro groups yields aniline-like amine-functionalized NPOF-1-NH₂ that has a micropore volume of 0.48 cm³ g^-1, which corresponds to 71% of the total pore volume and a Brunauer-Emmett-Teller surface area of 1535 m² g^-1. Adequate basicity of the amine functionalities leads to modest isosteric heats of adsorption for CO₂, which allow for high regenerability. The unique combination of high surface area, microporous structure, and amine-functionalized pore walls enables NPOF-1-NH₂ to have remarkable CO₂ working capacity values for removal from landfill gas and flue gas. The performance of NPOF-1-NH₂ in CO₂ removal ranks among the best by porous organic materials.

Original language	English (US)
Pages (from-to)	2592-2599
Number of pages	8
Journal	Journal of Physical Chemistry C
Volume	120
Issue number	5
DOIs	https://doi.org/10.1021/acs.jpcc.5b12247
State	Published - Feb 18 2016

Funding

This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award DESC0002576. T.I. thanks the Ministry of National Education of Turkey for graduate fellowship.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acs.jpcc.5b12247

Cite this

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title = "Systematic Postsynthetic Modification of Nanoporous Organic Frameworks for Enhanced CO2 Capture from Flue Gas and Landfill Gas",

abstract = "Controlled postsynthetic nitration of NPOF-1, a nanoporous organic framework constructed by nickel(0)-catalyzed Yamamoto coupling of 1,3,5-tris(4-bromophenyl)benzene, has been performed and is proven to be a promising route to introduce nitro groups and to convert mesopores to micropores without compromising surface area. Reduction of the nitro groups yields aniline-like amine-functionalized NPOF-1-NH2 that has a micropore volume of 0.48 cm3 g-1, which corresponds to 71% of the total pore volume and a Brunauer-Emmett-Teller surface area of 1535 m2 g-1. Adequate basicity of the amine functionalities leads to modest isosteric heats of adsorption for CO2, which allow for high regenerability. The unique combination of high surface area, microporous structure, and amine-functionalized pore walls enables NPOF-1-NH2 to have remarkable CO2 working capacity values for removal from landfill gas and flue gas. The performance of NPOF-1-NH2 in CO2 removal ranks among the best by porous organic materials.",

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