Coadou Erwan, Goodrich Peter, Neale Alex R, Timperman Laure, Hardacre Christopher, Jacquemin Johan, Anouti Mérièm
The QUILL Research Centre, School of Chemistry and Chemical Engineering, Queen's University of Belfast, Stranmillis Road, Belfast, BT9 5AG, UK.
Laboratoire PCM2E, Université François Rabelais, Parc de Grandmont, 37200, Tours, France.
Chemphyschem. 2016 Dec 5;17(23):3992-4002. doi: 10.1002/cphc.201600882. Epub 2016 Oct 27.
During this work, a novel series of hydrophobic room temperature ionic liquids (ILs) based on five ether functionalized sulfonium cations bearing the bis{(trifluoromethyl)sulfonyl}imide, [NTf ] anion were synthesized and characterized. Their physicochemical properties, such as density, viscosity and ionic conductivity, electrochemical window, along with thermal properties including phase transition behavior and decomposition temperature, have been measured. All of these ILs showed large liquid range temperature, low viscosity, and good conductivity. Additionally, by combining DFT calculations along with electrochemical characterization it appears that these novel ILs show good electrochemical stability windows, suitable for the potential application as electrolyte materials in electrochemical energy storage devices.
在这项工作中，合成并表征了一系列新型的基于五种带有双{（三氟甲基）磺酰基}亚胺（[NTf₂]⁻）阴离子的醚官能化锍阳离子的疏水性室温离子液体（ILs）。测量了它们的物理化学性质，如密度、粘度和离子电导率、电化学窗口，以及包括相变行为和分解温度在内的热性质。所有这些离子液体都表现出较宽的液程温度、低粘度和良好的导电性。此外，通过结合密度泛函理论（DFT）计算和电化学表征发现，这些新型离子液体显示出良好的电化学稳定性窗口，适合作为电化学储能装置中的电解质材料潜在应用。
