Issue 7, 2015

Exceptional CO2 working capacity in a heterodiamine-grafted metal–organic framework

Abstract

An amine-functionalized metal–organic framework (MOF), dmen-Mg2(dobpdc) (dmen = N,N-dimethylethylenediamine), which contains a heterodiamine with both primary and tertiary amines, was prepared via a post-synthetic method. This material exhibits a significant selectivity factor for CO2 over N2 that is commensurate with top-performing MOFs. It is remarkable that the solid is fully regenerated under vacuum or flowing Ar at low desorption temperatures, and following this can take up CO2 at more than 13 wt%. An exceptionally high working capacity is achieved at low regeneration temperatures and after exposure to humid conditions, which are important parameters for a real post-combustion CO2 capture process.

Graphical abstract: Exceptional CO2 working capacity in a heterodiamine-grafted metal–organic framework

Supplementary files

Article information

Article type
Edge Article
Submitted
03 Apr 2015
Accepted
21 Apr 2015
First published
22 Apr 2015
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2015,6, 3697-3705

Author version available

Exceptional CO2 working capacity in a heterodiamine-grafted metal–organic framework

W. R. Lee, H. Jo, L. Yang, H. Lee, D. W. Ryu, K. S. Lim, J. H. Song, D. Y. Min, S. S. Han, J. G. Seo, Y. K. Park, D. Moon and C. S. Hong, Chem. Sci., 2015, 6, 3697 DOI: 10.1039/C5SC01191D

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