Fujie K., Ikeda R., Otsubo K. et al. · Chemistry of Materials · 2015 · 7355-7361
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
The study presents the first lithium ion-doped ionic liquid incorporated into a MOF and investigates phase behaviour, ionic conductivity, and lithium self-diffusion.
Caveat: First-study claim is author-stated and not independently literature-verified in this extraction.
5 · Conclusion · Linked to 2 structured results
The authors suggest that MOFs with open metal sites could enhance lithium diffusion by pinning counteranions and improving Li+ dissociation.
Caveat: Forward-looking design suggestion, not experimentally tested in this paper.
5 · Results and Discussion · Linked to 1 structured result
TFSA anion motion in the ZIF-8 micropores is gradually suppressed on cooling, indicating absence of an apparent freezing transition for the confined lithium-doped ionic liquid.
Caveat: Supported by main-text NMR/DSC plus SI ELT@Z75 spectra; static NMR gives motional evidence rather than direct phase imaging.
5 · Conclusion · Linked to 2 structured results
Higher guest-ion occupancy produces much higher ionic conductivity, consistent with conductive paths becoming better connected as guest concentration increases.
Caveat: Absolute conductivities are mainly plot-read in the main article; SI Nyquist plots provide supporting impedance arcs but not tabulated fit parameters.
5 · Results and Discussion · Figure 8 · Linked to 1 structured result
XRPD changes and retained ZIF-8-like patterns support incorporation of (EMI0.8Li0.2)TFSA into ZIF-8 micropores without destroying the host crystal structure.
Caveat: Detailed Le Bail fits are provided in SI Figures S1-S3; incorporation assignment still depends on intensity-change interpretation rather than a direct composition map.
3 · Results and Discussion · Figure 3 · Linked to 2 structured results
Li+ cations in ELT@Z100 diffuse through ZIF-8 micropores by exchange of solvating TFSA anions, analogous to a Grotthuss-like mechanism.
Caveat: Mechanism is inferred from comparable activation energies and pore-size/solvation arguments; the measured DLi in the MOF remains two orders lower than bulk.
5 · Results and Discussion · Figure 10 · Linked to 3 structured results
Li+ cation mobility in ELT@ZIF-8 decreases more steeply below about 193 K than TFSA anion mobility, attributed to stronger interaction of Li+ with TFSA anions or the ZIF-8 inner surface.
Caveat: Mechanistic assignment is inferred from static NMR/DSC trends rather than direct site-specific measurement.
4 · Results and Discussion · Figure 7 · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Bulk EMI-TFSA and bulk (EMI0.8Li0.2)TFSA controls | EMI-TFSA; (EMI0.8Li0.2)TFSA | 0D · Model SystemBulk ionic liquids used as non-MOF transport and phase-behaviour controls. | 2 · Experimental Section |
| (EMI0.8Li0.2)TFSA@ZIF-8Browse family: ZIF-8 / Zn(mIm)₂ | (EMI0.8Li0.2)TFSA@Zn(MeIM)2Zn · 2-methylimidazolate | 3D · CompositeLithium ion-doped EMI-TFSA ionic liquid incorporated into ZIF-8 micropores. | 2 · Introduction |
| EMI-TFSA@ZIF-8Browse family: ZIF-8 / Zn(mIm)₂ | EMI-TFSA@Zn(MeIM)2Zn · 2-methylimidazolate | 3D · CompositeEMI-TFSA ionic liquid incorporated into ZIF-8 micropores at controlled volumetric occupancy. | 2 · Experimental Section |
| ZIF-8Browse family: ZIF-8 / Zn(mIm)₂ | Zn(MeIM)2; H(MeIM) = 2-methylimidazoleZn · 2-methylimidazolate | 3D · PristineZeolitic imidazolate framework with ZnN4 tetrahedra, micropores, and ZIF-8 diffraction pattern. | 1 · Abstract |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| ELT-bulkresearch_0315__mat__mat_bulk_il_controls | Unknown · Model System · Model | Bulk (EMI0.8Li0.2)TFSA liquid sample hermetically sealed or sandwiched between electrodes depending on measurement.Kapton washer approximately 0.1 mm thick x 3.1 mm inner diameter for conductivity | 2 · Experimental Section |
| ELT@Z100research_0315__mat__mat_elt_zif8 | Pellet · Target Sample · Guest Loaded | (EMI0.8Li0.2)TFSA mixed with activated ZIF-8 at 0.57:1 molar ratio, heated and stored overnight, then pressed into pellets for impedance.approximately 0.5 mm thick x 3.0 mm in diameter for conductivity pellets | 2 · Experimental Section |
| ELT@Z75research_0315__mat__mat_elt_zif8 | Pellet · Target Sample · Guest Loaded | (EMI0.8Li0.2)TFSA mixed with activated ZIF-8 at 0.42:1 molar ratio, heated and stored overnight, then pressed into pellets for impedance.approximately 0.5 mm thick x 3.0 mm in diameter for conductivity pellets | 2 · Experimental Section |
| ET-bulkresearch_0315__mat__mat_bulk_il_controls | Unknown · Model System · Model | Bulk EMI-TFSA liquid sample sandwiched between stainless steel electrodes for impedance.Kapton washer approximately 0.1 mm thick x 3.1 mm inner diameter for conductivity | 2 · Experimental Section |
| ET@Z100research_0315__mat__mat_et_zif8 | Pellet · Target Sample · Guest Loaded | EMI-TFSA mixed with activated ZIF-8 at 0.57:1 molar ratio, heated and stored overnight, then pressed into pellets for impedance.approximately 0.5 mm thick x 3.0 mm in diameter for conductivity pellets | 2 · Experimental Section |
| ET@Z75research_0315__mat__mat_et_zif8 | Pellet · Target Sample · Guest Loaded | EMI-TFSA mixed with activated ZIF-8 at 0.42:1 molar ratio, heated and stored overnight, then pressed into pellets for impedance.approximately 0.5 mm thick x 3.0 mm in diameter for conductivity pellets | 2 · Experimental Section |
| ZIF-8 nanoparticlesresearch_0315__mat__mat_zif8 | Powder · Pristine Control · Pristine Framework | White precipitate washed five times with methanol and activated at 423 K overnight under vacuum. | 2 · Experimental Section |