Zhang F., Jiao C., Shang Y. et al. · ACS Sensors · 2024 · 1310-1320
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 integrated Cu2O@CuHHTP alarm system can monitor pork and egg freshness by tracking H2S release around a 200 ppb spoilage threshold.
Caveat: Demonstration uses about 50 g pork and egg samples under reported room-temperature conditions.
p007 / 1316 · Application to Real Samples · Figure 6 · Linked to 4 structured results
CuHHTP is advantageous over Cu3(BTC)2 as a coating because the Cu2O@Cu3(BTC)2 comparator requires high-temperature operation, attributed to low Cu3(BTC)2 conductivity.
Caveat: Conductivity of Cu3(BTC)2 is discussed qualitatively; no direct conductivity value was found in the paper/SI text.
p007 / 1316 · Results and Discussion · Figure S11 · Linked to 1 structured result
The conductive CuHHTP coating improves humidity-independent H2S sensing by hindering water adsorption while preserving room-temperature operation.
Caveat: Water-contact-angle and DFT evidence address H2O adsorption; complete moisture behaviour also depends on composite morphology.
p008 / 1317 · Conclusions · Linked to 4 structured results
Cu2O@CuHHTP-3 gives the best overall sensing balance among the coating-thickness series according to the H factor.
Caveat: H-factor components include selectivity, sensitivity and humidity response; some selectivity values are graphical.
p006 / 1316 · Results and Discussion · Figure 4d · Linked to 3 structured results
A p-p heterojunction forms between p-type Cu2O and p-type CuHHTP, facilitating accumulation of electrons and activated oxygen species at the interface.
Caveat: Band-alignment argument is mechanistic and not accompanied by direct transport/conductivity measurement in the extracted text.
p008 / 1317 · Mechanism · Figure 7 · Linked to 2 structured results
The H2S chemiresistive response is attributed to reaction with activated oxygen species on Cu2O rather than formation of detectable copper sulfides.
Caveat: Absence of detected sulfides does not exclude trace amounts below detection limit.
p007 / 1316 · Mechanism · Figures S16-S20 · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu2O cubes | Cu2OCu+ oxide lattice · none | 3D · PristineCu2O cubic phase; XRD peaks match JCPDS 05-0667. | p004 / 1313 · Results and Discussion · Figure 3d |
| Cu2O@Cu3(BTC)2Browse family: HKUST-1 / Cu₃(BTC)₂ | Cu2O@Cu3(BTC)2Cu2O core plus Cu nodes in Cu3(BTC)2 · 1,3,5-benzenetricarboxylate (BTC) | 3D · CompositeMOF-coated Cu2O comparison material; XRD pattern shown in SI Figure S11. | p007 / 1316 · Results and Discussion · Figure S11 |
| Cu2O@CuHHTP-nBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu2O@CuHHTP-nCu2O core plus Cu ions in CuHHTP shell · HHTP in CuHHTP shell | 2D · CompositeComposite core-shell material; CuHHTP shell on Cu2O with 12-42 nm thickness depending on cycle number. | p002 / 1311 · Introduction · Figure 1 |
| CuHHTPBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | CuHHTP; HHTP = 2,3,6,7,10,11-hexahydroxytriphenyleneCu ions · HHTP | 2D · PristineConductive MOF; XRD peaks assigned to CuHHTP (100) and (200) planes. | p002 / 1311 · Introduction |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu2O@Cu3(BTC)2 powderresearch_0317__mat__mat_cu2o_cu_btc | Powder · Composite Sample · Composite | Prepared by in situ etching Cu2O with H3BTC in benzyl alcohol/ethanol at 80 C.44 nm by TEM image label | p015 / S-14 · Supporting Information · Figure S11 |
| Cu2O plus Cu(Ac)2/HHTP uncontrolled-reaction sampleresearch_0317__mat__mat_cu2o_cuhhtp | Powder · Unknown · Composite | Prepared in SI to demonstrate preferential CuHHTP nanoparticle formation when Cu2+ and HHTP coexist with Cu2O.not specified | p006 / S-5 · Supporting Information · Figure S3 |
| Cu2O cubes powderresearch_0317__mat__mat_cu2o | Powder · Pristine Control · Unknown | Vacuum dried at 80 C for 12 h after washing. | p003 / 1312 · Experimental Section |
| Cu2O@CuHHTP-1 powderresearch_0317__mat__mat_cu2o_cuhhtp | Powder · Composite Sample · Composite | One layer-by-layer growth cycle on Cu2O cubes, with Cu2+ end encapsulation.about 12 nm CuHHTP layer | p003 / 1312 · Results and Discussion · Figure 2 |
| Cu2O@CuHHTP-3 interdigital electrode sensorresearch_0317__mat__mat_cu2o_cuhhtp | Electrode · Target Sample · Composite | Powder/ethanol suspension drop-cast and dried at 80 C for 8 h in vacuum.interdigital electrode (1 cm x 1.2 cm) · film from 5 mg powder in 50 uL ethanol; not otherwise specified | p003 / 1312 · Sensor Fabrication and Measurement |
| Cu2O@CuHHTP-3 powderresearch_0317__mat__mat_cu2o_cuhhtp | Powder · Target Sample · Composite | Three layer-by-layer growth cycles on Cu2O cubes, with Cu2+ end encapsulation.about 23 nm CuHHTP layer | p006 / 1316 · Results and Discussion · Figure 4d |
| Cu2O@CuHHTP-5 powderresearch_0317__mat__mat_cu2o_cuhhtp | Powder · Composite Sample · Composite | Five layer-by-layer growth cycles on Cu2O cubes, with Cu2+ end encapsulation.about 42 nm CuHHTP layer | p003 / 1312 · Results and Discussion · Figure 2 |
| Cu2O interdigital electrode sensorresearch_0317__mat__mat_cu2o | Electrode · Pristine Control · Unknown | Prepared analogously for gas-sensing comparison.interdigital electrode · not specified | p002 / 1311 · Introduction |
| CuHHTP powderresearch_0317__mat__mat_cuhhtp | Powder · Pristine Control · Pristine Framework | Dried at 80 C for 12 h in vacuum after Cu(Ac)2 treatment and washing. | p003 / 1312 · Experimental Section |
| CuHHTP interdigital electrode sensorresearch_0317__mat__mat_cuhhtp | Electrode · Pristine Control · Pristine Framework | Standalone CuHHTP sensor tested for humidity response and H2S response.interdigital electrode · not specified | p005 / 1314 · Results and Discussion · Figure S6 |
| Integrated Cu2O@CuHHTP H2S alarm systemresearch_0317__mat__mat_cu2o_cuhhtp | Electrode · Target Sample · Composite | Cu2O@CuHHTP sensor integrated into portable alarm circuit for pork/egg spoilage monitoring.5 cm x 5 cm integrated electronics with sensor port, LCD, indicator light, Bluetooth-capable CPU · not specified | p007 / 1316 · Application to Real Samples · Figure S12 |