Highly selective adsorption of CO over CO 2 in a Cu(I)-chelated porous organic polymer

Jung Woon Yoon, Tae Ung Yoon, Eun Jung Kim, Ah Reum Kim, Tae Sung Jung, Sang Sup Han, Youn-Sang Bae

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Cu(I) species were successfully chelated to nitrogen atoms in a nitrogen-rich porous organic polymer (SNW-1) by mixing with a CuCl solution (Scheme 1). Although pristine SNW-1 adsorbs CO 2 better than CO, Cu(I)-incorporated SNW-1 (nCu(I)@SNW-1) shows selective CO adsorption over CO 2 because of the π-complexation of CO with Cu(I). To the best of our knowledge, this is the first CO/CO 2 selectivity observed for POP-based materials. 1.3Cu(I)@SNW-1 exhibits high CO/CO 2 selectivity (23) at 1 bar and a large CO working capacity (0.6 mmol/g) at 0.1–1 bar. Moreover, the breakthrough and thermogravimetric experiments show that 1.3Cu(I)@SNW-1 can effectively separate CO from CO 2 under dynamic mixture conditions and can be easily regenerated under mild regeneration conditions without heating the column. Furthermore, 1.3Cu(I)@SNW-1 exhibited a good stability under exposure to atmospheric air for 3 h or 9 h. These results suggest that chelating Cu(I) species to a nitrogen-rich porous organic polymer can be an efficient strategy to separate and recover CO from CO/CO 2 mixtures.

Original languageEnglish
Pages (from-to)321-327
Number of pages7
JournalJournal of Hazardous Materials
Volume341
DOIs
Publication statusPublished - 2018 Jan 1

Fingerprint

Organic polymers
Carbon Monoxide
Adsorption
Polymers
polymer
Nitrogen
adsorption
nitrogen
Chelation
Complexation
complexation
regeneration
heating
Heating
Atoms
air
Air
experiment
Experiments

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Yoon, Jung Woon ; Yoon, Tae Ung ; Kim, Eun Jung ; Kim, Ah Reum ; Jung, Tae Sung ; Han, Sang Sup ; Bae, Youn-Sang. / Highly selective adsorption of CO over CO 2 in a Cu(I)-chelated porous organic polymer In: Journal of Hazardous Materials. 2018 ; Vol. 341. pp. 321-327.
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abstract = "Cu(I) species were successfully chelated to nitrogen atoms in a nitrogen-rich porous organic polymer (SNW-1) by mixing with a CuCl solution (Scheme 1). Although pristine SNW-1 adsorbs CO 2 better than CO, Cu(I)-incorporated SNW-1 (nCu(I)@SNW-1) shows selective CO adsorption over CO 2 because of the π-complexation of CO with Cu(I). To the best of our knowledge, this is the first CO/CO 2 selectivity observed for POP-based materials. 1.3Cu(I)@SNW-1 exhibits high CO/CO 2 selectivity (23) at 1 bar and a large CO working capacity (0.6 mmol/g) at 0.1–1 bar. Moreover, the breakthrough and thermogravimetric experiments show that 1.3Cu(I)@SNW-1 can effectively separate CO from CO 2 under dynamic mixture conditions and can be easily regenerated under mild regeneration conditions without heating the column. Furthermore, 1.3Cu(I)@SNW-1 exhibited a good stability under exposure to atmospheric air for 3 h or 9 h. These results suggest that chelating Cu(I) species to a nitrogen-rich porous organic polymer can be an efficient strategy to separate and recover CO from CO/CO 2 mixtures.",
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Highly selective adsorption of CO over CO 2 in a Cu(I)-chelated porous organic polymer . / Yoon, Jung Woon; Yoon, Tae Ung; Kim, Eun Jung; Kim, Ah Reum; Jung, Tae Sung; Han, Sang Sup; Bae, Youn-Sang.

In: Journal of Hazardous Materials, Vol. 341, 01.01.2018, p. 321-327.

Research output: Contribution to journalArticle

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AU - Han, Sang Sup

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N2 - Cu(I) species were successfully chelated to nitrogen atoms in a nitrogen-rich porous organic polymer (SNW-1) by mixing with a CuCl solution (Scheme 1). Although pristine SNW-1 adsorbs CO 2 better than CO, Cu(I)-incorporated SNW-1 (nCu(I)@SNW-1) shows selective CO adsorption over CO 2 because of the π-complexation of CO with Cu(I). To the best of our knowledge, this is the first CO/CO 2 selectivity observed for POP-based materials. 1.3Cu(I)@SNW-1 exhibits high CO/CO 2 selectivity (23) at 1 bar and a large CO working capacity (0.6 mmol/g) at 0.1–1 bar. Moreover, the breakthrough and thermogravimetric experiments show that 1.3Cu(I)@SNW-1 can effectively separate CO from CO 2 under dynamic mixture conditions and can be easily regenerated under mild regeneration conditions without heating the column. Furthermore, 1.3Cu(I)@SNW-1 exhibited a good stability under exposure to atmospheric air for 3 h or 9 h. These results suggest that chelating Cu(I) species to a nitrogen-rich porous organic polymer can be an efficient strategy to separate and recover CO from CO/CO 2 mixtures.

AB - Cu(I) species were successfully chelated to nitrogen atoms in a nitrogen-rich porous organic polymer (SNW-1) by mixing with a CuCl solution (Scheme 1). Although pristine SNW-1 adsorbs CO 2 better than CO, Cu(I)-incorporated SNW-1 (nCu(I)@SNW-1) shows selective CO adsorption over CO 2 because of the π-complexation of CO with Cu(I). To the best of our knowledge, this is the first CO/CO 2 selectivity observed for POP-based materials. 1.3Cu(I)@SNW-1 exhibits high CO/CO 2 selectivity (23) at 1 bar and a large CO working capacity (0.6 mmol/g) at 0.1–1 bar. Moreover, the breakthrough and thermogravimetric experiments show that 1.3Cu(I)@SNW-1 can effectively separate CO from CO 2 under dynamic mixture conditions and can be easily regenerated under mild regeneration conditions without heating the column. Furthermore, 1.3Cu(I)@SNW-1 exhibited a good stability under exposure to atmospheric air for 3 h or 9 h. These results suggest that chelating Cu(I) species to a nitrogen-rich porous organic polymer can be an efficient strategy to separate and recover CO from CO/CO 2 mixtures.

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