Nataraj N., Chen T.-W., Gan Z.-W. et al. · Materials Today Chemistry · 2022 · 100725
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.
ZIF-67-C acts as a nanozyme with intrinsic peroxidase-mimicking activity, promoting H2O2-mediated TMB oxidation and colorimetric ACM detection.
Caveat: Kinetic fit constants in SI Fig. S4 were only readable as visual estimates from inset tables; no tabulated Michaelis-Menten constants were found.
3, 9 · 2.5 Peroxidase mimicking of ZIF-67-C; 3.3.1 · Fig. 8 · Linked to 7 structured results
ZIF-67-C/GCE gives the highest CV anodic response and the best reported electrochemical ACM detection performance among the prepared ZIF-67 variants.
Caveat: Detailed repeatability histograms are SI figure-only visual estimates; real-sample numerical recoveries were extracted from rendered SI Table S1.
5 · 3.2.2 Electrochemical oxidation of ACM · Fig. 3B · Linked to 7 structured results
The paper claims high conductivity/high electron affinity for ZIF-67-C, but the supplied evidence is electrode EIS and sensor response rather than intrinsic electrical-transport measurements such as pressed-pellet conductivity, four-probe film transport, Hall, or thermoelectric data.
Caveat: The supplied SI and rendered SI were checked; no intrinsic conductivity, Hall, thermoelectric, BET surface-area, pore-volume, or pore-size numerical data were found.
1, 4 · Abstract; 3.2.1 Electrochemical resistance analysis · Fig. 3A · Linked to 2 structured results
EDAX confirms the expected C, Co, N, and O elements in ZIF-67-C, consistent with cobalt-imidazolate framework composition.
Caveat: Values are visually read from the SI figure inset and oxygen may include surface/measurement contributions.
3-4 · Fig. S2 · Fig. S2A · Linked to 4 structured results
The room-temperature co-precipitated ZIF-67-C has a better-defined rhombic dodecahedral morphology than aged or hydrothermal variants, providing more active sites for ACM detection.
Caveat: Particle-size statistics and surface-area values are not available in the supplied main text or text-only SI.
3-4 · 3.1 Structural and morphological analysis · Fig. 2 · Linked to 3 structured results
Lower EIS resistance for ZIF-67-C/GCE indicates improved electron transfer/electronic conductivity relative to ZIF-67-A/GCE, ZIF-67-H/GCE, and bare GCE.
Caveat: This is electrochemical impedance of modified electrodes, not a direct four-probe intrinsic solid-state conductivity measurement of the powder.
4 · 3.2.1 Electrochemical resistance analysis · Fig. 3A · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-ZIF-67 zeolitic imidazolate frameworkBrowse family: ZIF-67 / Co(mIm)₂ | Co(2-methylimidazolate)2, commonly ZIF-67Cobalt ions coordinated by imidazolate linkers; described as Co2+ and 2-MeIm nucleation into ZIF-67. · 2-methylimidazole (2-MeIm) | 3D · PristineSodalite crystalline ZIF framework; ZIF-67-C forms rhombic dodecahedral particles, while ageing and hydrothermal variants show more aggregation or irregular morphology. | 2-3 · 2.2 Synthesis procedure; 3.1 Structural and morphological analysis · Fig. 1 |
| Glassy carbon electrode | C | unknown · UnknownCommercial bare GCE used as electrochemical substrate and control. | 3-4 · 2.3 Fabrication of different electrodes · Fig. 3 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Bare GCEresearch_0295__mat__glassy_carbon | Electrode · Pristine Control · Unknown | Washed with distilled water and ethanol, then cleaned with alumina slurry.Glassy carbon electrode | 3 · 2.3 Fabrication of different electrodes · Fig. 3 |
| ZIF-67-A/GCE modified electroderesearch_0295__mat__co_zif67 | Electrode · Pristine Control · Composite | About 6 uL of ZIF-67-A sample solution loaded onto cleaned bare GCE.Glassy carbon electrode | 3 · 2.3 Fabrication of different electrodes · Fig. 3 |
| ZIF-67-A powderresearch_0295__mat__co_zif67 | Powder · Pristine Control · Pristine Framework | Co-precipitation followed by 12 h ageing at room temperature; washed with methanol and dried at 50 C. | 3 · 2.2 Synthesis procedure · Fig. 2D-F |
| ZIF-67-C/GCE modified electroderesearch_0295__mat__co_zif67 | Electrode · Target Sample · Composite | About 6 uL of ZIF-67-C sample solution loaded onto cleaned bare GCE.Glassy carbon electrode | 3 · 2.3 Fabrication of different electrodes · Fig. 3-Fig. 7 |
| ZIF-67-C powderresearch_0295__mat__co_zif67 | Powder · Target Sample · Pristine Framework | Room-temperature simple co-precipitation; washed with methanol and dried at 50 C. | 1-3 · Abstract; 2.2 Synthesis procedure · Fig. 1; Fig. 2 |
| ZIF-67-H/GCE modified electroderesearch_0295__mat__co_zif67 | Electrode · Pristine Control · Composite | About 6 uL of ZIF-67-H sample solution loaded onto cleaned bare GCE.Glassy carbon electrode | 3 · 2.3 Fabrication of different electrodes · Fig. 3 |
| ZIF-67-H powderresearch_0295__mat__co_zif67 | Powder · Pristine Control · Pristine Framework | Co-precipitation mixture transferred to autoclave and heated at 180 C for 12 h; washed with methanol and dried at 50 C. | 3 · 2.2 Synthesis procedure · Fig. 2G-I |