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Energy & Environmental Science Vol - 4 Issue - 4

Energy & Environmental Science Vol - 4 Issue - 3

Energy & Environmental Science Vol - 4 Issue - 2

Energy & Environmental Science Vol -3

Energy & Environmental Science Vol -2

Energy & Environmental Science Vol -1

Ether-functionalized ionic liquids as highly efficient SO₂ absorbents

Content Provider	Royal Society of Chemistry (RSC)
Author	Hong, Sung Yun Im, Jinkyu Lee, Sang Deuk Kim, Hoon Sik Palgunadi, Jelliarko Jung, Kwang-Deog Cheong, Minserk Lee, Je Seung
Copyright Year	2011
Abstract	Room temperature ionic liquids (RTILs), ether-functionalized imidazolium methanesulfonates, exhibit extremely high SO2 solubility, at least 2 moles of SO2 per mole of RTIL at 30 °C and at atmospheric pressure. The solubility of SO2 in these RTILs increases with increasing number of tethered ether oxygen atoms and also with the pressure rise. FT-IR spectroscopic and quantum mechanical calculation results show that such high SO2 solubility is originated from the combined interactions of SO2 with methanesulfonate anion and ether oxygen atom or atoms on the imidazolium ring. The absorbed SO2 gas can be readily and completely desorbed from the RTILs by heating at 100 °C in a N2 flow, thereby allowing the RTILs to be reused up to 5 cycles without loss of their initial capacity.
Starting Page	1802
Ending Page	1806
Page Count	5
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	4
Issue Number	5
Journal	Energy & Environmental Science
DOI	10.1039/c0ee00616e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Room temperature Sulfur dioxide Atmospheric pressure Ether Oxygen Fourier-transform infrared spectroscopy Quantum mechanics Ion
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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