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Organic superbase derived ionic liquids based on the TFSI anion: synthesis, characterization, and electrochemical properties

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Abstract

A series of hydrophobic room temperature ionic liquids (RTILs) composed of organic superbase-derived cations and the TFSI anion (bis(trifluromethylsulfonyl)imide) were designed and synthesized. The structures of these new RTILs were determined using 1H-NMR, 13C-NMR, IR, and elemental analysis. Their physicochemical properties, including thermal properties, density, viscosity, and electrochemical properties, were investigated. Thermogravimetric analysis (TGA) revealed that these superbase-derived RTILs have high decomposition temperatures of up to 450 °C. Studies on their electrochemical properties demonstrated that these RTILs have relatively wide electrochemical windows of up to 4.6 V and good ionic conductivities at room temperature. Their application potential as novel electrolytes in supercapacitors was also evaluated.

Graphical abstract: Organic superbase derived ionic liquids based on the TFSI anion: synthesis, characterization, and electrochemical properties

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Publication details

The article was received on 04 Feb 2017, accepted on 02 May 2017 and first published on 05 May 2017


Article type: Paper
DOI: 10.1039/C7NJ00407A
Citation: New J. Chem., 2017, Advance Article
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    Organic superbase derived ionic liquids based on the TFSI anion: synthesis, characterization, and electrochemical properties

    Z. Wang, Z. Li, Y. Jin, W. Liu, L. Jiang and Q. Zhang, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ00407A

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