Aqueous carboxylic acid-based solutions for CO2 Capture

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This report, describes the concept of multifuncionalized-carboxylate-based Task-Specific Ionic Liquid (TSIL) in combination with controlled quantity of water, in order to capture CO2. Different examples of TSILs were prepared centred on a acid-base reaction between formic acid, di-, tri-, terra- and multifunctionalized carboxylic acids in combination with the proper number of equivalents of an organic superbase, 1, 8-Diazabicyclo [5.4.0]undec-7-ene (DBU). The TSILs preparation method sustainability is centred on the atom economy of the reaction and use of ethanol as solvent. The use of one of these Ionic Liquids is highlighted in this work, namely the DBU-based salt of Aspartic acid: [DBUH+]2[Asp2+]. An aqueous solution of this salt was prepared and tested for carbon dioxide capture. CO2 uptake in wt% was obtained and evaluation of reactional mixture by NMR and FTIR techniques was carried out.

Original languageEnglish
Title of host publicationMaterials for Energy, Efficiency and Sustainability - TechConnect Briefs 2016
PublisherTechConnect
Pages239-242
Number of pages4
Volume2
ISBN (Electronic)978-099751171-0
Publication statusPublished - 2016
Event10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 19th Annual Nanotech Conference and Expo, and the 2016 National SBIR/STTR Conference - Washington, United States
Duration: 22 May 201625 May 2016

Conference

Conference10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 19th Annual Nanotech Conference and Expo, and the 2016 National SBIR/STTR Conference
CountryUnited States
CityWashington
Period22/05/1625/05/16

Keywords

  • Carbon dioxide capture
  • Ionic liquid
  • Multifunctionalized-carboxylates
  • Organic superbase
  • Water

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  • Cite this

    Carrera, G. V. S. M., DaCosta, H., Branco, L. C., & Nunes da Ponte, M. (2016). Aqueous carboxylic acid-based solutions for CO2 Capture. In Materials for Energy, Efficiency and Sustainability - TechConnect Briefs 2016 (Vol. 2, pp. 239-242). TechConnect.