Amino acid based poly(ionic liquid) materials for CO2 capture

Effect of anion

Maisara Shahrom Raja Shahrom, Cecilia Devi Wilfred, Douglas R. MacFarlane, R. Vijayraghavan, Fai Kait Chong

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Poly(ionic liquid) materials based on eight amino acids (arginine [Arg], lysine [Lys], histidine [Hist], taurine [Tau], proline [Pro], serine [Ser], alanine [Ala] and glycine [Gly]) have been synthesized and characterized as CO2 absorbers. Among the broad family studied, [Lys] was found to have the highest gravimetric uptake with 15.7 wt%. In terms of molar adsorption, the highest CO2 sorption capacity was obtained with [VBTMA][Arg] with 0.83 mol/mol and this increased to 1.14 mol/mol after polymerization. The CO2 sorption increased as pressure increased and decreased as temperature was increased. Maximum desorption occurred at 80 °C and the materials can be readily recycled with 86% sorption capacity retention demonstrated on the 5th sorption cycle. The molecular-level behavior of the anions was discussed in terms of their activity coefficients and σ-profiles from COSMO-RS calculations.

Original languageEnglish
Pages (from-to)644-652
Number of pages9
JournalJournal of Molecular Liquids
Volume276
DOIs
Publication statusPublished - 15 Feb 2019

Keywords

  • Amino acid ionic liquids
  • CO sorption
  • Polymerized ionic liquids

Cite this

Raja Shahrom, Maisara Shahrom ; Wilfred, Cecilia Devi ; MacFarlane, Douglas R. ; Vijayraghavan, R. ; Chong, Fai Kait. / Amino acid based poly(ionic liquid) materials for CO2 capture : Effect of anion. In: Journal of Molecular Liquids. 2019 ; Vol. 276. pp. 644-652.
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title = "Amino acid based poly(ionic liquid) materials for CO2 capture: Effect of anion",
abstract = "Poly(ionic liquid) materials based on eight amino acids (arginine [Arg], lysine [Lys], histidine [Hist], taurine [Tau], proline [Pro], serine [Ser], alanine [Ala] and glycine [Gly]) have been synthesized and characterized as CO2 absorbers. Among the broad family studied, [Lys] was found to have the highest gravimetric uptake with 15.7 wt{\%}. In terms of molar adsorption, the highest CO2 sorption capacity was obtained with [VBTMA][Arg] with 0.83 mol/mol and this increased to 1.14 mol/mol after polymerization. The CO2 sorption increased as pressure increased and decreased as temperature was increased. Maximum desorption occurred at 80 °C and the materials can be readily recycled with 86{\%} sorption capacity retention demonstrated on the 5th sorption cycle. The molecular-level behavior of the anions was discussed in terms of their activity coefficients and σ-profiles from COSMO-RS calculations.",
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Amino acid based poly(ionic liquid) materials for CO2 capture : Effect of anion. / Raja Shahrom, Maisara Shahrom; Wilfred, Cecilia Devi; MacFarlane, Douglas R.; Vijayraghavan, R.; Chong, Fai Kait.

In: Journal of Molecular Liquids, Vol. 276, 15.02.2019, p. 644-652.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Amino acid based poly(ionic liquid) materials for CO2 capture

T2 - Effect of anion

AU - Raja Shahrom, Maisara Shahrom

AU - Wilfred, Cecilia Devi

AU - MacFarlane, Douglas R.

AU - Vijayraghavan, R.

AU - Chong, Fai Kait

PY - 2019/2/15

Y1 - 2019/2/15

N2 - Poly(ionic liquid) materials based on eight amino acids (arginine [Arg], lysine [Lys], histidine [Hist], taurine [Tau], proline [Pro], serine [Ser], alanine [Ala] and glycine [Gly]) have been synthesized and characterized as CO2 absorbers. Among the broad family studied, [Lys] was found to have the highest gravimetric uptake with 15.7 wt%. In terms of molar adsorption, the highest CO2 sorption capacity was obtained with [VBTMA][Arg] with 0.83 mol/mol and this increased to 1.14 mol/mol after polymerization. The CO2 sorption increased as pressure increased and decreased as temperature was increased. Maximum desorption occurred at 80 °C and the materials can be readily recycled with 86% sorption capacity retention demonstrated on the 5th sorption cycle. The molecular-level behavior of the anions was discussed in terms of their activity coefficients and σ-profiles from COSMO-RS calculations.

AB - Poly(ionic liquid) materials based on eight amino acids (arginine [Arg], lysine [Lys], histidine [Hist], taurine [Tau], proline [Pro], serine [Ser], alanine [Ala] and glycine [Gly]) have been synthesized and characterized as CO2 absorbers. Among the broad family studied, [Lys] was found to have the highest gravimetric uptake with 15.7 wt%. In terms of molar adsorption, the highest CO2 sorption capacity was obtained with [VBTMA][Arg] with 0.83 mol/mol and this increased to 1.14 mol/mol after polymerization. The CO2 sorption increased as pressure increased and decreased as temperature was increased. Maximum desorption occurred at 80 °C and the materials can be readily recycled with 86% sorption capacity retention demonstrated on the 5th sorption cycle. The molecular-level behavior of the anions was discussed in terms of their activity coefficients and σ-profiles from COSMO-RS calculations.

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