Structural Investigations on Lithium-Doped Protic and Aprotic Ionic Liquids.
Structural Investigations on Lithium-Doped Protic and Aprotic Ionic Liquids.
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锂掺杂质子和非质子离子液体的结构研究
DOI:
10.1021/acs.jpcb.7b02636
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
B. Kirchner
中科院分区:
文献类型:
--
作者:
P. Ray;T. Vogl;A. Balducci;B. Kirchner
Solutions of lithium bis(trifluoromethanesulfonyl)imide (LiNTf2), in four different [NTf2]−-based ionic liquids, are extensively investigated as potential electrolytes for lithium-ion batteries. Solvation of the [Li]+ions in the ionic liquids and its impact on their physicochemical properties are studied herein with the aid of molecular dynamics simulations. The cationic components of the investigated liquids were systematically varied so as to individually evaluate effects of specific structural changes; increase in ring size, the addition of an alkyl chain and absence of an acidic proton, on the solvation and mobility of the [Li]+cations. The studied cations also allow for a direct comparison between solutions of [Li]+salt in protic and aprotic ionic liquids. Emphasis is laid on elucidating the interactions between the [Li]+and [NTf2]−ions revealing slightly higher coordination numbers for the aprotic solvent, benchmarked against experimental measurements. The study suggests that the ionic liquids largely retain their structure upon salt addition, with interactions within the liquids only slightly perturbed. The rattling motion of the [Li]+cations within cages formed by the surrounding [NTf2]−anions is examined by the analysis of [Li]+autocorrelation functions. Overall, the solvation mechanism of [Li]+salt, within the hydrogen-bonded network of the ionic liquids, is detailed from classical andab initiomolecular dynamics simulations.
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DOI:
10.1021/jp109612k
发表时间:
2011-02
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
Miriam Kohagen;Martin Brehm;J. Thar;Wei Zhao;F. Müller-Plathe;B. Kirchner
通讯作者:
Miriam Kohagen;Martin Brehm;J. Thar;Wei Zhao;F. Müller-Plathe;B. Kirchner
影响因子:
3.3
作者:
Kohagen, Miriam;Brehm, Martin;Kirchner, Barbara
通讯作者:
Kirchner, Barbara
影响因子:
3.8
作者:
Herstedt, M;Henderson, WA;Lassègues, JC
通讯作者:
Lassègues, JC
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
T. Vogl;S. Menne;R. Kühnel;A. Balducci
通讯作者:
A. Balducci
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
中村賀美;竹内孝江
通讯作者:
竹内孝江