Application RelevanceSupport assessment: High
Cu3(HHTP)2 modification lowers the AA oxidation potential and increases oxidation current relative to bare SPE.
4 · 2. Results and Discussion · Figure 3a · Linked to 4 structured results
Primary studyPeripheral evidenceSensor
Detection of Ascorbic Acid by Two-Dimensional Conductive Metal-Organic Framework-Based Electrochemical Sensors
Wang S., Li P., Wang J. et al. · Molecules · 2024 · 2413
3materials
3samples
3synthesis routes
17measurements
82results
7claims and caveats
Evidence map
Open a family to keep every result attached to its sample, method and conditions.
Sensing Application5 measurements36 results →Electrochemistry Application6 measurements24 results →Spectroscopy2 measurements12 results →Diffraction Structure1 measurement4 results →Porosity1 measurement3 results →Electrical Transport1 measurement2 results →Microscopy Morphology1 measurement1 result →
Author interpretations and caveats
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
Application RelevanceSupport assessment: High
The authors selected 4 mg/mL Cu3(HHTP)2 loading and pH 6 for follow-up electrochemical AA tests based on optimisation experiments.
Caveat: Optimisation bar/point currents are visual estimates from SI Figures S3 and S4, while the selected conditions are explicitly stated in the main text.
3 · 2. Results and Discussion · Figures S3-S4 · Linked to 4 structured results
Application RelevanceSupport assessment: High
Parallel Cu3(HHTP)2/SPE sensors gave oxidation peak currents centred at 10.725 uA with reported electrode uncertainty of 0.171.
Caveat: The uncertainty is reported without an explicit unit; individual currents are exact SI Table S1 entries.
1 · Supplementary Materials · Table S1 · Linked to 4 structured results
Application RelevanceSupport assessment: High
The Cu3(HHTP)2/SPE sensor provides AA detection over 25-1645 umol/L with a 2.44 umol/L detection limit and good serum recoveries.
Caveat: Serum data are from Table 1; stability day labels are inconsistent between main text and supplied SI Figure S5.
8 · 4. Conclusions · Figure 4; Table 1 · Linked to 6 structured results
Phase AssignmentSupport assessment: High
XRD, FT-IR, and SEM characterisation support successful formation of Cu3(HHTP)2 with particle-shaped morphology.
2 · 2. Results and Discussion · Figure 1 · Linked to 5 structured results
Structure Property LinkSupport assessment: Medium
Coexisting Cu+ and Cu2+ centres are proposed to facilitate electron delocalisation and contribute to the measured conductivity of Cu3(HHTP)2.
Caveat: Mechanistic attribution is interpretive; conductivity value is first-hand and SI Figure S2 supplies the supporting I-V curves.
3 · 2. Results and Discussion · Figure 2; Figure S2 · Linked to 3 structured results
Transport MechanismSupport assessment: Medium
The AA oxidation rate on the Cu3(HHTP)2/SPE electrode is described as diffusion-controlled from the linear relation between peak current and v^1/2.
Caveat: Based on reported linear fit and author interpretation; raw scan-rate data are only shown graphically.
5 · 2. Results and Discussion · Figure 3d · Linked to 2 structured results
Material identities
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 · HHTP | 2D · PristineTwo-dimensional conductive MOF; XRD peaks assigned to (100), (200), (210), and (004) planes. | 2 · Introduction |
| Cu3(HHTP)2/SPE electrochemical sensorBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu3(HHTP)2/SPECu · HHTP | 2D · CompositeCu3(HHTP)2 deposited on a screen-printed electrode working surface. | 1 · Abstract |
| screen-printed electrode | Not specified | unknown · UnknownCommercial TE100-SG type screen printing electrode used as substrate and bare control. | 7 · 3.1. Instruments and Reagents |
Sample register
Sample form, processing state and composition status define the context for measurements.
Show 3 sample records
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| bare SPEresearch_0838__mat__mat_spe | Electrode · Pristine Control · Unknown | Electrochemically pretreated in 0.5 mol/L H2SO4 by CV from -1.0 to 1.0 V at 100 mV/s until baseline stabilised.screen-printed electrode | 7 · 3.2.1. Electrode Pretreatment |
| as-synthesised Cu3(HHTP)2 powderresearch_0838__mat__mat_cu_hhtp2 | Powder · Composite Component · Pristine Framework | Blue-black solid washed with methanol and acetone and vacuum dried at 80 C for 12 h. | 8 · 3.2.2. The Synthesis of Cu3(HHTP)2 |
| Cu3(HHTP)2/SPEresearch_0838__mat__mat_cu_hhtp2_spe | Electrode · Target Sample · Composite | 2 uL of 4 mg/mL Cu3(HHTP)2 methanol dispersion drop-cast on the SPE working electrode and dried at room temperature.screen-printed electrode (SPE) | 8 · 3.2.3. The Preparation of Cu3(HHTP)2/SPE |