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首页> 外文期刊>Chemistry: A European journal >Tuning the Basicity of Cyano-Containing Ionic Liquids to Improve SO2 Capture through Cyano-Sulfur Interactions
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Tuning the Basicity of Cyano-Containing Ionic Liquids to Improve SO2 Capture through Cyano-Sulfur Interactions

机译：调整含氰离子液体的碱性，以通过氰-硫相互作用改善SO2的捕获

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摘要

A new approach has been developed to improve SO2 sorption by cyano-containing ionic liquids (ILs) through tuning the basicity of ILs and cyano-sulfur interaction. Several kinds of cyano-containing ILs with different basicity were designed, prepared, and used for SO2 capture. The interaction between these cyano-containing ILs and SO2 was investigated by FTIR and NMR methods. Spectroscopic investigations and quantum chemical calculations showed that dramatic effects on SO2 capacity originate from the basicity of the ILs and enhanced cyano-sulfur interaction. Furthermore, the captured SO2 was easy to release by heating or bubbling N-2 through the ILs. This efficient and reversible process, achieved by tuning the basicity of ILs, is an excellent alternative to current technologies for SO2 capture.
机译：已经开发出一种新的方法，通过调整离子液体的碱性和氰基-硫的相互作用来改善含氰离子液体（IL）对SO2的吸附。设计，制备了几种碱度不同的含氰离子液体，并将其用于SO2捕集。通过FTIR和NMR方法研究了这些含氰基的IL与SO2之间的相互作用。光谱研究和量子化学计算表明，对二氧化硫容量的巨大影响源自离子液体的碱性和增强的氰硫相互作用。此外，通过加热或鼓泡通过IL的N-2，捕获的SO2易于释放。通过调整离子液体的碱性，可以实现这种高效且可逆的过程，是目前SO2捕集技术的绝佳替代品。

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