Absorption- and Pressure-induced Structural Transition Exhibiting V-shaped Density Change in Imidazolium-based Ionic Liquid + CO2 System

• Shuhei Okumura

  Division of Nanoscience, Graduate School of Advanced Integration Science, Chiba University

• Masayoshi Ushio

  Division of Nanoscience, Graduate School of Advanced Integration Science, Chiba University

• Akina Oishi

  Division of Nanoscience, Graduate School of Advanced Integration Science, Chiba University

• Keiko Nishikawa

  Division of Nanoscience, Graduate School of Advanced Integration Science, Chiba University

• Takeshi Morita

  Division of Nanoscience, Graduate School of Advanced Integration Science, Chiba University

Abstract

The density of ionic liquid (IL) + CO2 systems was measured by X-ray absorption method and excess molar volume was evaluated to investigate the volumetric behavior under a CO2 absorption process up to 20 MPa. A V-shaped density plot was observed, and three types of expanded/compressed trends were classified based on the excess molar volume of the IL. The volumetric behavior of the IL strongly depends on the CO2 amount absorbed in the IL’s cavities.

Journal

• Chemistry Letters

  Chemistry Letters 44 (7), 937-939, 2015-04-23

  Oxford University Press (OUP)

Keywords

• General Chemistry

Details

• CRID: 1360002219105670656
• NII Article ID: 130005085155
• DOI: 10.1246/cl.150187
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/44/7/937/55644852/cl.150187.pdf
• Data Source:
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  • CiNii Articles
  • KAKEN