Guo K., Zhao L., Yu S. et al. · Inorganic Chemistry · 2018 · 7104-7112
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.
Pressed MOF 1 pellets act as high-humidity NH3 impedimetric sensors, with best reported response 243% to 25 ppm NH3 and 1 ppm detection limit at 30 deg C and 98% RH.
Caveat: Application performance is demonstrated on laboratory pellets; no device-to-device statistics are reported.
p008 · Conclusion · Linked to 4 structured results
The authors state that the sensor research remains at a basic level, despite promising device-fabrication relevance.
Caveat: Author-stated limitation; not a measurement-derived result.
p008 · Conclusion
MOF 1 retains crystallinity and framework structure after boiling/immersion in water and after pH 1-11 aqueous treatments.
Caveat: Based on qualitative PXRD pattern matching rather than raw diffraction refinement after treatment.
p004 · Water and Chemical Stability · Figure 3 · Linked to 3 structured results
Proton conductivity increases with increasing RH and temperature, reaching 1.36 x 10^-3 S cm-1 at 100 deg C and 98% RH.
Caveat: Pellet dimensions used for conductivity are not reported in the article or SI text layer.
p005 · Proton Conduction of MOF 1 · Table 2; Figure 6 · Linked to 4 structured results
H2O and NH3 jointly improve proton transfer by hydrogen-bond networks and NH4+ generation; the mechanism changes from vehicle-like at 75% RH to Grotthuss-like at 98% RH under NH3.
Caveat: Mechanistic assignment is inferred from activation energies, adsorption, PXRD, and dry controls; no direct spectroscopic observation of NH4+ is reported.
p007 · Impedance Ammonia Sensing · Figure 10; Figure S21 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| MOF 1 / [Ba(o-CbPhH2IDC)(H2O)4]n | [Ba(o-CbPhH2IDC)(H2O)4]n; empirical formula C12H14BaN2O10Ba(II) ions; binuclear [Ba2(o-CbPhH2IDC)4(H2O)8] units linked into one-dimensional Ba(II) chains · o-CbPhH2IDC2- from o-CbPhH4IDC = 2-(2-carboxylphenyl)-1H-imidazole-4,5-dicarboxylic acid | 3D · PristineTriclinic P-1 Ba(II)-organic framework; coordination chains are linked by intermolecular hydrogen bonds into a 3D framework with water chains along the b-axis. | p003 · Results and Discussion - Crystal Structure · Figure 2; Table 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Activated crystalline solids of MOF 1research_0849__mat__mof1_ba_cbphhidc | Powder · Target Sample · Pristine Framework | Immersed in alcohol for 8 h to exchange framework water, then dried under vacuum at 65 deg C for 14 h. | p002 · Experimental Section - Stability Experiment and Activation |
| As-synthesised pale yellow rod crystals of MOF 1research_0849__mat__mof1_ba_cbphhidc | Single Crystal · Pristine Control · Pristine Framework | Hydrothermally prepared, washed with distilled water, and dried in air. | p002 · Experimental Section - Preparation |
| MOF 1 pellet during humid NH3 exposureresearch_0849__mat__mof1_ba_cbphhidc | Pellet · Target Sample · Guest Loaded | Pressed pellet exposed in situ to 1-25 ppm NH3 at 30 deg C and controlled 75-98% RH.Pt mesh electrodes in homemade gas-sensing chamber · not reported | p006 · Results - Impedance Ammonia Sensing · Figure 7 |
| Pressed pellet of MOF 1research_0849__mat__mof1_ba_cbphhidc | Pellet · Target Sample · Pristine Framework | Crystalline powders pressed into a pellet; equilibrated for at least 18 h under selected RH before proton-conductivity measurement.Pt mesh electrode pair for sensing; quasi-four-probe fixture for conductivity · not reported | p002 · Introduction; Proton Conduction Measurement |
| Water- and pH-treated MOF 1 solidsresearch_0849__mat__mof1_ba_cbphhidc | Powder · Pristine Control · Pristine Framework | Soaked in water for 7 d, refluxed in water for 24 h, or soaked in pH 1-11 aqueous solutions for 24 h; dried in air for PXRD. | p002 · Experimental Section - Stability Experiment and Activation |