Lu G., Zong B., Tao T. et al. · ACS Sensors · 2024 · 1916-1926
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 PI-supported Ni3(HHTP)2 FET maintains similar NO2 responses under bending and repeated bending, supporting flexible sensor operation.
Caveat: SEM before/after bending is supplied in SI Figure S8; raw cycling data are not tabulated.
p005 · Results and Discussion · Figure 5 · Linked to 4 structured results
The Ni3(HHTP)2 FET sensor detects NO2 at room temperature with high sensitivity, a calculated 56 ppb LOD, and strong selectivity relative to tested inorganic and VOC gases.
Caveat: Several selectivity values were read from figure labels rather than a table.
p004 · Results and Discussion · Figure 3 · Linked to 4 structured results
The SI was checked for synthesis details; it adds characterisation methods, DFT settings, bending-angle calculation and supplemental figures/tables, but does not provide a separate expanded synthesis recipe beyond the main-text in situ growth procedure.
Caveat: Substrate-specific non-PI recipes therefore remain partial because the paper states only that they used a similar procedure.
S2-S11 · Supporting Information
The in situ aqueous route successfully forms Ni3(HHTP)2 with characteristic diffraction peaks, nanorod morphology, Ni/C/O elemental distribution, and XPS evidence for Ni2+ coordinated with HHTP.
Caveat: XPS and N2 isotherm plots are in the SI and were checked; no CIF/refinement is supplied.
p003 · Results and Discussion · Figure 2; Figures S2-S3 · Linked to 4 structured results
Across flexible substrates, smaller Ni3(HHTP)2 nanorods give higher NO2 response, consistent with higher specific surface area and more active adsorption sites.
Caveat: Response values for the substrate series are approximate from figure axes; nanorod size labels are read from Figure 7 histograms.
p008 · Results and Discussion · Figure 6c and Figure 7 · Linked to 7 structured results
DFT indicates Ni-sites are the preferred NO2 adsorption sites on Ni3(HHTP)2 because the Ni-site adsorption energy is more negative than OH- or benzene-site adsorption.
Caveat: DFT settings are available in the SI, but the raw model files/coordinates are not supplied.
p008 · Results and Discussion · Figure 8a,b · Linked to 4 structured results
NO2 acts as an electron acceptor on p-type Ni3(HHTP)2, increasing hole concentration and therefore conductivity/current during sensing.
Caveat: Transport behaviour is demonstrated by FET transfer curves and interpreted with standard NO2 electron-acceptor mechanism plus DFT adsorption energies.
p008 · Results and Discussion · Figure 8c · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Ni3(HHTP)2Browse family: Ni₃(HHTP)₂ / Ni–HHTP | Ni3(HHTP)2Nickel nodes; XPS indicates Ni is present as Ni2+ coordinated with the HHTP ligand. · HHTP, hexahydroxytriphenylene. | 2D · PristineConductive metal-organic framework with characteristic XRD peaks assigned to (100), (200), (210), (220), (221), and (004) planes; hexagonal crystal system inferred from 1.75 nm (100) lattice spacing. | p001 · Abstract |
| Ni3(HHTP)2 DFT modelBrowse family: Ni₃(HHTP)₂ / Ni–HHTP | Ni3(HHTP)2Ni sites in the simulated framework. · HHTP framework model with OH and benzene adsorption sites. | 2D · Model SystemComputational model used to compare NO2 adsorption at Ni-, OH-, and benzene-sites. | p008 · Results and Discussion · Figure 8 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| NO2 on Ni3(HHTP)2 computational adsorption modelresearch_0192__mat__mat_ni_hhtp2_model | Model · Model System · Model | DFT model of NO2 adsorption at Ni-, OH-, and benzene-sites on Ni3(HHTP)2. | p008 · Results and Discussion · Figure 8 |
| Ni3(HHTP)2 film FET sensor on facemaskresearch_0192__mat__mat_ni_hhtp2 | Thin Film · Target Sample · Pristine Framework | Ni3(HHTP)2 film sensor fabricated by a procedure similar to the PI device.Facemask | p006 · Results and Discussion · Figure 6 |
| Prepared Ni3(HHTP)2 materialresearch_0192__mat__mat_ni_hhtp2 | Powder · Target Sample · Pristine Framework | Prepared Ni3(HHTP)2 nanorod material used for TEM/HRTEM, EDS, XRD, N2 adsorption and XPS discussion; exact isolation state is not specified in the main text. | p002 · Figure caption · Figure 2 |
| Ni3(HHTP)2 film FET sensor on paper cupresearch_0192__mat__mat_ni_hhtp2 | Thin Film · Target Sample · Pristine Framework | Ni3(HHTP)2 film sensor fabricated by a procedure similar to the PI device.Paper cup | p006 · Results and Discussion · Figure 6 |
| Ni3(HHTP)2 film FET sensor on PIresearch_0192__mat__mat_ni_hhtp2 | Thin Film · Target Sample · Pristine Framework | In situ grown Ni3(HHTP)2 film on oxygen-plasma-treated PI/Au FET substrate; used as primary gas-sensor sample.Polyimide (PI) substrate with thermally evaporated Au electrodes · ca. 788.2 nm Ni3(HHTP)2 film; PI substrate cut to 10 x 5 mm2; Au electrode finger gap 100 um, channel length 6 mm, Au thickness 100 nm | p003 · Experimental Section |
| Ni3(HHTP)2 FET sensor on Si/SiO2 back-gate substrateresearch_0192__mat__mat_ni_hhtp2 | Thin Film · Target Sample · Pristine Framework | Back-gate FET configuration used for electrical output and transfer characteristics; substrate/device photograph shown in SI Figure S1.Si/SiO2 substrate with gold electrodes and back-gate structure · Gold electrodes shown on Si/SiO2 in Figure S1; Ni3(HHTP)2 film/device used for output and transfer characteristics. | p003 · Experimental Section · Figure S1 cited |
| Ni3(HHTP)2 film FET sensor on tableclothresearch_0192__mat__mat_ni_hhtp2 | Thin Film · Target Sample · Pristine Framework | Ni3(HHTP)2 film sensor fabricated by a procedure similar to the PI device.Tablecloth | p006 · Results and Discussion · Figure 6 |
| Ni3(HHTP)2 film FET sensor on take-out bag (textile)research_0192__mat__mat_ni_hhtp2 | Thin Film · Target Sample · Pristine Framework | Ni3(HHTP)2 film sensor fabricated by a procedure similar to the PI device.Take-out bag (textile) | p006 · Results and Discussion · Figure 6 |
| Ni3(HHTP)2 film FET sensor on tape (PET)research_0192__mat__mat_ni_hhtp2 | Thin Film · Target Sample · Pristine Framework | Ni3(HHTP)2 film sensor fabricated by a procedure similar to the PI device.Tape (PET) | p003 · Experimental Section |