...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Immobilization induced molecular compression of ionic liquid in ordered mesoporous matrix
【24h】

Immobilization induced molecular compression of ionic liquid in ordered mesoporous matrix

机译：固定化诱导有序中孔基质中离子液体的分子压缩

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, ionic liquid (IL) 1-ethyl-3-methylimidazolium bis(fluorosulfonyl) imide ([ EMIM] [FSI]) has been immobilized into ordered mesoporous silica MCM-41 by a physical imbibition process. Transmission electron microscopy confirms the filling of mesopores of MCM-41. The effect of IL content in MCM-41 was probed in terms of thermal stability, chemical interactions, and dielectric properties. N-2-sorption results indicate the compression of the IL in the nanopores of MCM-41, which contributes to an increase of the melting point probed by differential scanning calorimetry. The quantum chemical calculations confirmed that the ion-ion interaction in ion-pairs of IL were preferred over the hydrogen bonding interaction in the presence of SiO2 molecules, and these interactions probably compress the molecular size in the nanopores of MCM-41. Strong interactions between IL and porous MCM-41 were suggested as the mechanism of this immobilization, which was characterized by FTIR and dielectric spectroscopy.
机译：在该工作中，离子液体（IL）1-乙基-3-甲基咪唑鎓双（氟磺酰基）酰亚胺（氟磺酰基）酰亚胺（[emim] [FSI]）通过物理吸收过程固定在有序的介孔二氧化硅MCM-41中。透射电子显微镜证实MCM-41的填充物。在热稳定性，化学相互作用和介电性能方面探讨了MCM-41中IL含量的影响。 N-2吸附结果表明IL在MCM-41的纳米孔中的压缩，这有助于通过差示扫描量热法探测的熔点的增加。量子化学计算证实，在SiO 2分子存在下，优选离子对IL的离子离子相互作用，并且这些相互作用可能压缩MCM-41的纳米孔中的分子大小。 IL和多孔MCM-41之间的强相互作用被提出为该固定化的机制，其特征在于FTIR和介电光谱。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号