Chen P., Su X., Wang C. et al. · Angewandte Chemie - International Edition · 2023 · e202306224
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.
HIOTP-Ni acts as a selective room-temperature chemiresistive NO2 sensor with 405% response at 10 ppm and 0.21 ppm theoretical LOD.
Caveat: Device-to-device statistics beyond the cycling CV are not reported in the extracted text.
p003-p004 · NO2 sensing · Figure 3 / Table S3 · Linked to 4 structured results
The experimental PXRD patterns of HIOTP-M are assigned to AA-stacked 2D frameworks in P6/MMM.
Caveat: Assignment is based on PXRD simulation/Pawley refinement rather than single-crystal diffraction.
p002 · Crystalline structures · Figure 2c-d / Figure S6 · Linked to 3 structured results
HIOTP-M possess the largest pore apertures among the reported 2D c-MOFs, and HIOTP-Ni has one of the highest BET surface areas.
Caveat: The comparison to prior 2D c-MOFs relies on literature values in Table S1, not independently remeasured controls.
p002 · Porosity · Figure 1 / Table S1 · Linked to 4 structured results
Larger pore aperture and surface area are proposed to improve NO2 mass transport and sensing performance relative to smaller-pore Ni3(HIB)2 and Ni3(HITP)2 controls.
Caveat: Controls were compared experimentally for sensing, but their syntheses and surface areas were not re-reported in detail in this paper.
p004 · Sensing comparison · Figures S32-S34 · Linked to 4 structured results
DFT and XPS support NO2 coordination at the Ni centre, electron donation from HIOTP-Ni to NO2, increased hole concentration, and a conductivity change during sensing.
Caveat: Mechanistic pathway is proposed from adsorption calculations and post-exposure XPS; direct operando charge-transport evidence is not reported.
p004-p005 · NO2 adsorption mechanism · Figure 4 / Tables S5-S6 · Linked to 3 structured results
HIOTP-M show modest pressed-pellet conductivity that increases after iodine doping, and variable-temperature data indicate thermally activated semiconducting transport.
Caveat: Transport values are two-probe pellet conductivities; contact and pellet-density effects are not resolved.
p003 · Electrical conductivity · Figures S22-S29 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| HAOTP.6HCl | C36H30Cl6N6O6Organic linker precursor for HIOTP-M | 0D · UnknownMolecular ligand salt; not a conductive MOF. | S4 · Synthetic Procedures · Scheme S1 |
| HIOTP-Cu | Not specifiedCu coordination sites formed from copper(ii) nitrate hydrate and HAOTP ligand · hexaamino-triphenyleno[2,3-b:6,7-b':10,11-b'']tris[1,4]benzodioxin (HAOTP) | 2D · Pristine2D conjugated MOF; AA-stacking model in P6/MMM with a = b = 38.17 Angstrom, c = 3.34 Angstrom, gamma = 120 deg | p002 · Results and discussion · Figure 2 / Figure S6 |
| HIOTP-Ni | Not specifiedNi coordination sites formed from nickel nitrate hexahydrate and HAOTP ligand · hexaamino-triphenyleno[2,3-b:6,7-b':10,11-b'']tris[1,4]benzodioxin (HAOTP) | 2D · Pristine2D conjugated MOF; AA-stacking model in P6/MMM fits PXRD, a = b = 37.90 Angstrom, c = 3.28 Angstrom, gamma = 120 deg | p002 · Results and discussion · Figure 2 |
| Ni3(HIB)2 | Ni3(HIB)2Ni coordination sites · HIB ligand, as represented in Figure S32 | 2D · PristinePreviously known 2D c-MOF control with smaller pore aperture than HIOTP-Ni; PXRD shown against simulated pattern. | p004 · Sensing comparison · Figure S32 |
| Ni3(HITP)2Browse family: Ni₃(HITP)₂ / Ni–HITP | Ni3(HITP)2Ni coordination sites · HITP ligand, as represented in Figure S32 | 2D · PristinePreviously known 2D c-MOF control with smaller pore aperture than HIOTP-Ni; PXRD shown against simulated pattern. | p004 · Sensing comparison · Figure S32 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| HAOTP.6HCl light yellow solidresearch_0408__mat__haotp_6hcl | Powder · Unknown · Unknown | Organic linker salt isolated after SnCl2/HCl reduction and acid/methanol washing. | S4 · Synthesis of HAOTP.6HCl · Figures S1-S3 |
| iodine-doped HIOTP-Cu pelletresearch_0408__mat__hiotp_cu | Pellet · Target Sample · Doped | HIOTP-Cu exposed to iodine vapour at 85 deg C for 24 h, then pressed into a pellet. | S3 · Iodine doping of HIOTP-M · Figure S25 |
| HIOTP-Cu DFT modelresearch_0408__mat__hiotp_cu | Model · Model System · Model | VASP/PBE PAW model of NO2 adsorption on the Cu portion of HIOTP-Cu. | S22 · DFT calculations · Table S6 |
| HIOTP-Cu pressed pelletresearch_0408__mat__hiotp_cu | Pellet · Target Sample · Pristine Framework | Pristine powder pressed into a pellet for two-probe electrical conductivity. | p003 · Electrical conductivity · Figure S23 |
| HIOTP-Cu black powderresearch_0408__mat__hiotp_cu | Powder · Target Sample · Pristine Framework | Filtered precipitate washed with DMF, water and acetone, then vacuum dried at 85 deg C for 12 h. | S6 · Synthesis of HIOTP-Cu |
| HIOTP-Cu chemiresistive sensing deviceresearch_0408__mat__hiotp_cu | Electrode · Target Sample · Pristine Framework | Isopropanol dispersion drop-cast on interdigital electrode and vacuum dried at 60 deg C for 1 h.home-made interdigital electrode with 100 um gaps | S3 · Gas sensor characterization · Figures S30-S31 |
| iodine-doped HIOTP-Ni pelletresearch_0408__mat__hiotp_ni | Pellet · Target Sample · Doped | HIOTP-Ni exposed to iodine vapour at 85 deg C for 24 h, then pressed into a pellet. | S3 · Iodine doping of HIOTP-M · Figure S24 |
| HIOTP-Ni DFT modelresearch_0408__mat__hiotp_ni | Model · Model System · Model | VASP/PBE PAW model of gas adsorption on the Ni portion of HIOTP-Ni. | S3 / S22 · DFT calculations · Table S5 |
| HIOTP-Ni pressed pelletresearch_0408__mat__hiotp_ni | Pellet · Target Sample · Pristine Framework | Pristine powder pressed into a pellet for two-probe electrical conductivity. | p003 · Electrical conductivity · Figure S22 |
| HIOTP-Ni black powderresearch_0408__mat__hiotp_ni | Powder · Target Sample · Pristine Framework | Filtered precipitate washed with DMF, water and acetone, then vacuum dried at 120 deg C for 12 h. | S6 · Synthesis of HIOTP-Ni |
| HIOTP-Ni chemiresistive sensing deviceresearch_0408__mat__hiotp_ni | Electrode · Target Sample · Pristine Framework | Isopropanol dispersion drop-cast on interdigital electrode and vacuum dried at 60 deg C for 1 h.home-made interdigital electrode with 100 um gaps | S3 · Gas sensor characterization · Figure 3 |
| Ni3(HIB)2 chemiresistive sensing deviceresearch_0408__mat__ni3_hib2 | Electrode · Pristine Control · Pristine Framework | Synthesised 2D c-MOF control tested toward 100 ppm NO2; detailed recipe and device fabrication parameters not separately specified.interdigital electrode, presumed same gas-sensor fabrication | p004 · Sensing comparison · Figures S33-S34 |
| Ni3(HITP)2 chemiresistive sensing deviceresearch_0408__mat__ni3_hitp2 | Electrode · Pristine Control · Pristine Framework | Synthesised 2D c-MOF control tested toward 100 ppm NO2; detailed recipe and device fabrication parameters not separately specified.interdigital electrode, presumed same gas-sensor fabrication | p004 · Sensing comparison · Figures S33-S34 |