| 离子液体([C6MIm])从体相电迁移至水相研究 |
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| 引用本文： | 王明勇,孙进贺,张鹏瑞,黄超驰,张茜,邵斐,景燕,贾永忠.离子液体([C6MIm])从体相电迁移至水相研究[J].盐湖研究,2021,29(2):35-43. |
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| 作者姓名： | 王明勇 孙进贺 张鹏瑞 黄超驰 张茜 邵斐 景燕 贾永忠 |
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| 作者单位： | 中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008 ;青海省盐湖资源综合利用工程技术中心,青海 西宁 810008;中国科学院大学,北京 100049 |
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| 基金项目： | Key R&D Program of Qinghai Province(No.2021-GX-104)and Youth Innovation Promotion Association of CAS(2015351) |
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| 摘 要： | 离子在离子液体/水溶液二元系统中的电迁移行为在很多领域受到了越来越多的关注。本文通过研究不同条件下离子液体离子在电极液中的浓度变化,系统地研究了电极溶液酸—碱度,电极溶液中电解质浓度以及离子液体中溶解LiN(CF3SO2)2与否对C6MIm]+离子电迁移的影响。总的来说,随着电流的增加,C6MIm]+离子向阴极水溶液的迁移量随之增加,向阳极水溶液的迁移量随之减少；然而N(CF3SO2)2-离子向阳极水溶液的迁移量随之增加,向阴极水溶液的迁移量随之减少。当电极溶液为碱性,C6MIm]+离子的迁移量明显减少。在电极溶液中溶入LiN(CF3SO2)2时或者将LiN(CF3SO2)2溶入离子液体时,C6MIm]+离子的迁移量也明显受到抑制。
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| 关 键 词： | 离子液体 电迁移 电极水溶液 回溶 |
| 收稿时间： | 2019/12/16 0:00:00 |
| 修稿时间： | 2020/3/6 0:00:00 |
Electromigration of [C6MIm]from Ionic Liquids Bulk to Aqueous Solutions |
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| WANG Ming-yong,SUN Jin-he,ZHANG Peng-rui,HUANG Chao-chi,ZHANG Qian,SHAO Fei,JING Yan,JIA Yong-zhong.Electromigration of [C6MIm]from Ionic Liquids Bulk to Aqueous Solutions[J].Journal of Salt Lake Research,2021,29(2):35-43. |
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| Authors: | WANG Ming-yong SUN Jin-he ZHANG Peng-rui HUANG Chao-chi ZHANG Qian SHAO Fei JING Yan JIA Yong-zhong |
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| Abstract: | The ions electromigration of ionic liquids(ILs)/aqueous solution binary system have attracted increasingly attention in many fields.In this work,the effect of acidity-alkalinity,electrolyte concentration of electrode solutions and ILs with LiN(CF3SO2)2 on the migration ofC6MIm]+ ions was investigated systematically by studying the concentration change of ions of ILs in the electrode solutions.Generally,the concentration ofC6MIm]+ ions increased in cathode solution and decreased in anode solution with increasing current,while the concentration of N(CF3SO2)-2 ions increased in anode solution and decreased in cathode solution.When basic solution was used as electrode solution,the migration ofC6MIm]+ ions was restrained markedly.LiN(CF3SO2)2 solution was used as electrode solution and the dissolution of LiN(CF3SO2)2 in ILs could reduce the migration ofC6MIm]+ ions effectively |
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