Kim J.-O., Koo W.-T., Kim H. et al. · Nature Communications · 2021 · 4294
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 Pt@Cu3(HHTP)2 thin film outperforms pristine Cu3(HHTP)2 powder and thin-film controls for room-temperature NO2 sensing.
Caveat: Application results are chemiresistive sensing results rather than intrinsic transport measurements.
5 · Sensing characteristics · Fig. 4 · Linked to 5 structured results
Cryo-TEM/HRTEM/STEM evidence supports nanoscopic Pt particles embedded inside Cu3(HHTP)2 pores rather than a separate large Pt phase.
Caveat: PXRD does not show a clear Pt diffraction peak, consistent with very small loading and embedded particles.
4 · Characterizations · Fig. 3 · Linked to 4 structured results
MiCS gives smoother and more electrically uniform Pt@Cu3(HHTP)2 films than conventional premixed solution shearing.
Caveat: The exact conventional-shearing formulation is not fully specified.
3 · Results · Fig. 2f; Supplementary Fig. 7 · Linked to 4 structured results
Pt incorporation lowers BET surface area relative to pristine Cu3(HHTP)2, attributed to Pt particles blocking MOF pores.
Caveat: BET required thick-film sample collection rather than direct measurement on a single nanoscale sensor film.
4 · Characterizations · Supplementary Fig. 14 · Linked to 2 structured results
MiCS combines C-MOF synthesis, Pt nanocatalyst incorporation, and thin-film growth in a single continuous solution-shearing process.
Caveat: The conventional comparison route is described qualitatively rather than with a full recipe.
3 · Results · Fig. 1 · Linked to 2 structured results
The authors attribute enhanced NO2 sensing to improved gas accessibility in thin Cu3(HHTP)2 layers and Pt-nanoparticle-catalysed NO2 spillover.
Caveat: Mechanistic attribution is based on fitted sensing kinetics and literature-supported spillover, not direct operando observation of NO2 spillover.
5 · Sensing characteristics · Fig. 4d · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu3(HHTP)2Browse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu3(HHTP)2Cu nodes · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 2D · PristineConductive 2D metal-catecholate framework with rigid pores; PXRD peaks assigned to (100), (200), (210), (220), and (001). | 2 · Results · Fig. 1 |
| MiCS microfluidic-channel model | Not specified | unknown · Model SystemCOMSOL finite-element model of flow and mass transfer in the microfluidic blade. | 6 · Methods · Supplementary Fig. 5 |
| Pt@Cu3(HHTP)2Browse family: Cu₃(HHTP)₂ / Cu–HHTP | Pt@Cu3(HHTP)2Cu nodes plus Pt nanoparticles · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 2D · CompositePt nanocatalyst particles embedded within pores of Cu3(HHTP)2; PXRD pattern remains similar to pristine Cu3(HHTP)2. | 2 · Results · Fig. 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu3(HHTP)2 thin film fabricated by MiCSresearch_0257__mat__mat_cu3_hhtp2 | Thin Film · Pristine Control · Pristine Framework | microfluidic-based solution-sheared thin film, washed with DMSO and ethanoloxygen-plasma-treated glass, silicon wafer, or alumina; sensing devices used Al2O3 · ~100 nm in Supplementary Table 1; thickness depends on shearing speed | 6 · Methods |
| Cu3(HHTP)2 powder drop-coated sensorresearch_0257__mat__mat_cu3_hhtp2 | Powder · Pristine Control · Pristine Framework | Cu3(HHTP)2 powder suspension drop-coated from ethanol onto aluminaAl2O3 sensor substrate with Au electrodes | 7 · Methods |
| Cu3(HHTP)2 thick film collected for BETresearch_0257__mat__mat_cu3_hhtp2 | Thin Film · Pristine Control · Pristine Framework | thick MiCS-derived films evacuated before N2 adsorptionabout 1.35 um thick films; 15-20 films collected for ~20 mg sample | S25 · Supplementary Fig. 14 · Supplementary Fig. 14 |
| MiCS serpentine-channel CFD modelresearch_0257__mat__mat_mics_channel_model | Model · Model System · Model | COMSOL steady-state laminar-flow and mass-transfer model | 6 · Methods · Supplementary Fig. 5 |
| Pt@Cu3(HHTP)2 conventional solution-sheared filmresearch_0257__mat__mat_pt_cu3_hhtp2 | Thin Film · Composite Sample · Guest Loaded | all components premixed as a bulk solution before coatingglass substrate in Fig. 2f; 150 deg C shearing condition in Supplementary Fig. 7 | 3 · Results · Fig. 2f |
| Pt@Cu3(HHTP)2 thin-film Pt-loading seriesresearch_0257__mat__mat_pt_cu3_hhtp2 | Thin Film · Target Sample · Guest Loaded | MiCS Pt precursor solution varied at 50, 100, 150, and 200 uL/minAl2O3 for sensing optimisation; other substrates possible for film coating · not separately specified for each Pt precursor flow | S9 · Supplementary Table 6 · Supplementary Table 6 |
| Pt@Cu3(HHTP)2 thin film, 100 uL/min Pt precursorresearch_0257__mat__mat_pt_cu3_hhtp2 | Thin Film · Target Sample · Guest Loaded | MiCS film grown at 150 deg C, 100 um blade-substrate gap, 30 deg blade angle; washed with DMSO and ethanoloxygen-plasma-treated glass, silicon wafer, or alumina; sensing devices used Al2O3 · tens of nanometres by Fig. 3e; ~100 nm in Supplementary Table 1 | 5 · Sensing characteristics · Supplementary Table 6 |
| Pt@Cu3(HHTP)2 thick film collected for BETresearch_0257__mat__mat_pt_cu3_hhtp2 | Thin Film · Target Sample · Guest Loaded | thick MiCS-derived films evacuated before N2 adsorptionabout 1.35 um thick films; 15-20 films collected for ~20 mg sample | S25 · Supplementary Fig. 14 · Supplementary Fig. 14 |