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Introduction of an Ionic Liquid into the Micropores of a Metal–Organic Framework and Its Anomalous Phase Behavior
Abstract
Controlling the dynamics of ionic liquids (ILs) is a significant issue for widespread use. Metal–organic frameworks (MOFs) are ideal host materials for ILs because of their small micropores and tunable host–guest interactions. Herein, we demonstrate the first example of an IL incorporated within the micropores of a MOF. The system studied consisted of EMI‐TFSA (1‐ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)amide) and ZIF‐8 (composed of Zn(MeIM)2; H(MeIM)=2‐methylimidazole) as the IL and MOF, respectively. Construction of the EMI‐TFSA in ZIF‐8 was confirmed by X‐ray powder diffraction, nitrogen gas adsorption, and infrared absorption spectroscopy. Differential scanning calorimetry and solid‐state NMR measurements showed that the EMI‐TFSA inside the micropores demonstrated no freezing transition down to 123 K, whereas bulk EMI‐TFSA froze at 231 K. Such anomalous phase behavior originates from the nanosize effect of the MOF on the IL. This result provides a novel strategy for stabilizing the liquid phase of the ILs down to a lower temperature region.
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Cited by
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Li, B., Wen, H., Cui, Y., Zhou, W., Qian, G., & Chen, B. (2016) · Advanced Materials · doi:10.1002/adma.201601133 · Cited by 1,587
Proton Transport in Metal–Organic Frameworks
Lim, D.-W., & Kitagawa, H. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00842 · Cited by 689
Self-citationZhang, S., Zhang, J., Zhang, Y., & Deng, Y. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00509 · Cited by 659
Ban, Y., Li, Z., Li, Y., Peng, Y., Jin, H., Jiao, W., Guo, A., Wang, P., Yang, Q., Zhong, C., et al. (2015) · Angewandte Chemie International Edition · doi:10.1002/anie.201505508 · Cited by 419
Ionogel Electrolytes for High‐Performance Lithium Batteries: A Review
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Metadata
- Authors
- Fujie, K., Yamada, T., Ikeda, R., & Kitagawa, H.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2014-08-28
- Volume
- 53
- Issue
- 42
- Pages
- 11302-11305
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2057766341
- Cited by
- 181
- References
- 0
- FWCI
- 5.28
- Type
- journal article
- Language
- en
- Open access
- closed
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- Fujie, K., Yamada, T., Ikeda, R., & Kitagawa, H. (2014). Introduction of an Ionic Liquid into the Micropores of a Metal–Organic Framework and Its Anomalous Phase Behavior. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201406011
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