Diffusion coefficients, spin-lattice relaxation times, and chemical shift variations of NMR spectra in LiTFSI-doped ether- and allyl-functionalized dicationic ionic liquids
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- 作者：Tzi-Yi Wua ; wuty@yuntech.edu.tw" class="auth_mail" title="E-mail the corresponding author ; Shyh-Gang Sub ; Yi-Hsuan Wangb ; Yuan-Chung Linc ; Jeng-Kuei Changd ; Chung-Wen Kuoe ; I-Wen Sunb ; iwsun@mail.ncku.edu.tw" class="auth_mail" title="E-mail the corresponding author
- 关键词：Ionic liquid electrolyte ; Diffusion coefficient ; Lithium ion transference number ; Walden's rule ; Chemical shift
- 刊名：Journal of the Taiwan Institute of Chemical Engineers
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：60
- 期：Complete
- 页码：138-150
- 全文大小：1314 K
文摘
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An ether- and allyl-functionalized dicationic ionic liquid ([AIOIA][TFSI]) is synthesized.
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1H-T1 and 19F-T1 increase with increasing temperature.
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An upfield shift in 1H and 19F spectra was observed with increasing LiTFSI concentrations in the ILs.
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The Ea of DAIOIA+ and DTFSI− are larger than those of the σ and Λ at various lithium salt concentrations.