Zhang S., Li L., Lu Y. et al. · Applied Materials Today · 2022 · 101391
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.
PEN-supported flexible IC-MOF sensors can detect non-contact hand humidity, nose breathing, atomized water, and retain performance after bending.
Caveat: Flexible-device fabrication details beyond substrate identity are not reported in the available text.
main p.8, article p.8 · Results and discussion · Fig. 6, Figure S19 · Linked to 6 structured results
IC-Mg2(dobdc) maintains humidity-sensing performance under very low humidity, higher humidity, and air storage conditions.
Caveat: Detailed numerical drift values are not available in text; stability traces are mainly in figures/SI.
main p.5, article p.5 · Results and discussion · Fig. 4e, Figures S15-S17 · Linked to 5 structured results
The IC-Mg2(dobdc) sensor has a broad 0-97% RH detection range and fast 2.5 s/1.5 s response/recovery times.
Caveat: The faster time constants are for 12-58% RH transfer to atmosphere; 2-97% RH bottle-to-bottle switching is slower.
main p.5, article p.5 · Results and discussion · Table 1 · Linked to 6 structured results
FT-IR, Raman, and XPS evidence supports formation of Mg2(dobdc)-MOF and metal-oxygen coordination.
Caveat: No PXRD peak positions or CIF were available in the provided text; crystallographic assignment relies on reported spectra and Fig. 1 schematic/model.
main p.2, article p.2 · Results and discussion · Figures S3-S5 · Linked to 3 structured results
Among the screened metal ions and ligands, Mg2(dobdc) gives the best humidity-sensing performance.
Caveat: Comparative values for Mg2PMA and Mg2PTA are graphical/qualitative in the provided text.
main p.3, article p.3 · Results and discussion · Fig. 3a-b · Linked to 2 structured results
Metal ions and organic ligands diffuse and self-coordinate at a two-dimensional phase boundary to form IC-MOF thin films at the liquid interface.
Caveat: Mechanistic description is reported by authors; no kinetic or in situ evidence is provided in the extracted text.
main p.2, article p.2 · Results and discussion · Figure S2
Mg2(dobdc)-MOF shows ionic conduction behaviour, with mobile metal ions acting as charge carriers.
Caveat: No numeric ionic conductivity was reported in the available text; support is qualitative I-t and EIS evidence.
main p.3, article p.3 · Results and discussion · Fig. 2b, Figure S11 · Linked to 2 structured results
Mobile metal ions between IC-MOF layers are critical to humidity sensing because the no-free-ion Mg2(dobdc) control cannot resolve 2% versus 4% RH.
Caveat: The control sample preparation details are blocked by incomplete SI text.
main p.3, article p.3 · Results and discussion · Fig. 2c · Linked to 1 structured result
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co2(dobdc)-MOF | Co2(dobdc)Co2+ centres from cobalt(II) nitrate trihydrate. · H4dobdc | 2D · PristineIC-MOF thin film in the M2(dobdc)-MOF series; XPS shows Co 2p peaks with satellite peaks. | main p.2, article p.2 · Results and discussion · Figures S8a-S8b |
| Cu2(dobdc)-MOF | Cu2(dobdc)Cu2+ centres from copper(II) nitrate trihydrate. · H4dobdc | 2D · PristineIC-MOF thin film in the M2(dobdc)-MOF series; XPS confirms Cu2+. | main p.2, article p.2 · Results and discussion · Figures S6a-S6b |
| Ionically conductive MOF thin-film series | M2(linker)-MOF, M = Mg, Co, Cu, Zn, Ni; linker = dobdc, PMA, or PTADivalent Mg2+, Co2+, Cu2+, Zn2+, or Ni2+ ions; mobile metal ions act as charge carriers between layers. · 1,4-dioxido-2,5-benzenedicarboxylate (H4dobdc), pyromellitic acid (H4PMA), or terephthalic acid (H4PTA). | 2D · PristineLiquid-interface-sprayed multilayer IC-MOF films formed at a two-dimensional phase boundary with mobile metal ions between layers. | main p.2, article p.2 · Results and discussion · Fig. 1a |
| Mg2(dobdc)-MOF | Mg2(dobdc)Mg2+ centres from magnesium(II) nitrate trihydrate; free Mg2+ ions are present between layers in the ionically conductive film. · 1,4-dioxido-2,5-benzenedicarboxylate (H4dobdc) | 2D · PristineStacking model shown for Mg2(dobdc)-MOF; multilayer IC-MOF film with mobile metal ions between layers. | main p.3, article p.3 · Results and discussion · Fig. 1b |
| Mg2PMA-MOF | Mg2(PMA)Mg2+ centres from magnesium(II) nitrate trihydrate. · Pyromellitic acid (H4PMA) | 2D · PristineIC-MOF thin film prepared by the same liquid-interface spraying method; molecular formula illustrated in Fig. 1a. | main p.3, article p.3 · Results and discussion · Fig. 3b |
| Mg2PTA-MOF | Mg2(PTA)Mg2+ centres from magnesium(II) nitrate trihydrate. · Terephthalic acid (H4PTA) | 2D · PristineIC-MOF thin film prepared by the same liquid-interface spraying method; molecular formula illustrated in Fig. 1a. | main p.3, article p.3 · Results and discussion · Fig. 3b |
| Ni2(dobdc)-MOF | Ni2(dobdc)Ni2+ centres from nickel(II) nitrate trihydrate. · H4dobdc | 2D · PristineIC-MOF thin film in the M2(dobdc)-MOF series; XPS confirms Ni2+. | main p.2, article p.2 · Results and discussion · Figures S7a-S7b |
| Zn2(dobdc)-MOF | Zn2(dobdc)Zn2+ centres from zinc(II) nitrate trihydrate. · H4dobdc | 2D · PristineIC-MOF thin film in the M2(dobdc)-MOF series; XPS confirms Zn2+. | main p.3, article p.3 · Results and discussion · Figure S9b |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| IC-Co2(dobdc) humidity sensorresearch_0823__mat__co2_dobdc_mof | Electrode · Pristine Control · Pristine Framework | IC-MOF thin film humidity sensor.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 3a |
| IC-Cu2(dobdc) humidity sensorresearch_0823__mat__cu2_dobdc_mof | Electrode · Pristine Control · Pristine Framework | IC-MOF thin film humidity sensor.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 3a |
| IC-MOF thin-film humidity sensor series on conductive glassresearch_0823__mat__ic_mof_series | Electrode · Paper Level Unspecified · Pristine Framework | Sprayed liquid-interface thin films deposited on conductive glass and used as capacitive humidity sensors.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 1c |
| Flexible IC-MOF humidity sensor on PENresearch_0823__mat__mg2_dobdc_mof | Electrode · Target Sample · Pristine Framework | Flexible Mg2(dobdc)-based sensor using PEN as substrate.Polyethylene naphthalate (PEN) film | main p.7, article p.7 · Results and discussion · Fig. 6a-b |
| Mg2(dobdc)-MOF humidity sensor without free metal ionsresearch_0823__mat__mg2_dobdc_mof | Electrode · Pristine Control · Pristine Framework | Prepared without free metal ions; detailed preparation was referenced to SI but not present in the provided SI text.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 2c |
| IC-Mg2(dobdc) humidity sensorresearch_0823__mat__mg2_dobdc_mof | Electrode · Target Sample · Pristine Framework | Thin film deposited on conductive glass after liquid-interface spraying; operated as capacitive humidity sensor.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 3c |
| IC-Mg2PMA humidity sensorresearch_0823__mat__mg2_pma_mof | Electrode · Pristine Control · Pristine Framework | IC-MOF thin film humidity sensor.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 3b |
| IC-Mg2PTA humidity sensorresearch_0823__mat__mg2_pta_mof | Electrode · Pristine Control · Pristine Framework | IC-MOF thin film humidity sensor.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 3b |
| IC-Ni2(dobdc) humidity sensorresearch_0823__mat__ni2_dobdc_mof | Electrode · Pristine Control · Pristine Framework | IC-MOF thin film humidity sensor.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 3a |
| IC-Zn2(dobdc) humidity sensorresearch_0823__mat__zn2_dobdc_mof | Electrode · Pristine Control · Pristine Framework | IC-MOF thin film humidity sensor.Conductive glass / ITO interdigital electrode | main p.3, article p.3 · Results and discussion · Fig. 3a |