Li W., Lv S., Wang Y. et al. · Sensors and Actuators, B: Chemical · 2019 · 652-658
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 NiCo-MOFNs/NPG electrode is a high-performance non-enzymatic glucose sensor with broad 0.001-8 mM linear range, 0.6844 mA mM^-1 cm^-2 sensitivity, less than 1 s response and 0.29 uM LOD.
Caveat: Detection is performed under alkaline conditions; authors state alkaline condition is indispensable.
657 · 4. Conclusions · Linked to 7 structured results
The sensing performance requires alkaline detection conditions.
Caveat: Measurements used 0.1 M NaOH; physiological direct-use conditions are not demonstrated.
657 · 4. Conclusions · Linked to 3 structured results
The 4 h NiCo-MOFNs expose the most active sites because they combine higher loading than 2 h samples with thinner morphology than 6 h samples.
Caveat: ECSA proxy is based on double-layer capacitance, not an independently measured absolute surface area.
654 · 3.1 Preparation · Fig. 2a · Linked to 5 structured results
Nanoporous gold directs vertical NiCo-MOF nanosheet growth and prevents restacking; other substrates produce stacked/lying-down nanosheets.
Caveat: Full NPG preparation route is not reproduced in this paper.
653 · 3.1 Preparation · Fig. 1, Fig. S3 · Linked to 2 structured results
Strong interaction among N, Co and Ni enhances electrocatalytic glucose oxidation, inferred from XPS shifts and nitride-like N species.
Caveat: The electron-transfer mechanism is inferred from XPS binding-energy shifts and electrochemical performance; no direct conductivity measurement is reported.
655 · 3.3 Characterization · Fig. 4 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-MOFNs | not reported; Co 2-aminoterephthalate MOF nanosheetsCo · 2-aminoterephthalic acid / 2-aminoterephthalate | 2D · PristineCo-containing MOFN control in ratio optimisation and XPS. | 655-656 · 3.2-3.3 · Fig. 3a, Fig. 4c |
| Ni-MOFNs | not reported; Ni 2-aminoterephthalate MOF nanosheetsNi · 2-aminoterephthalic acid / 2-aminoterephthalate | 2D · PristineSimilar diffraction peaks to Zn-based MOF CCDC HUCGAO. | 655 · 3.3 Characterization of the 2D NiCo-MOFNs · Fig. 3a, Fig. 4a/e |
| 2D NiCo bimetal-organic framework nanosheets (NiCo-MOFNs) | not reported; Ni/Co 2-aminoterephthalate MOF with approximately 1:1 Ni:Co in best sampleNi and Co · 2-aminoterephthalic acid / 2-aminoterephthalate | 2D · PristineAnalogous structure to Zn-based MOF CCDC HUCGAO; XRD peaks downshift after Co introduction. | 655 · 3.3 Characterization of the 2D NiCo-MOFNs · Fig. 3a |
| nanoporous gold substrate | AuAu (substrate, not MOF node) · none | 3D · Derived3D continuous nanoporous gold with approximately 125 nm ligament width. | 653 · 3.1 Preparation of vertically standing 2D NiCo-MOFNs on NPG · Fig. S5a |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| bulk NiCo-MOFNs precipitates from precursor solutionresearch_0371__mat__m_nico_mofns | Powder · Pristine Control · Mixed Metal | precipitated in hydrothermal precursor solutionnone · not reported | 653 · 2.2 Fabrication · Fig. 1b, Fig. S2 |
| Co-MOFNs controlresearch_0371__mat__m_co_mofns | Unknown · Pristine Control · Pristine Framework | monometal control prepared for XRD/XPS and electrochemical comparison; detailed recipe not separately reportednot specified for all measurements · not reported | 655-656 · 3.2-3.3 · Fig. 2d, Fig. 3a, Fig. 4c |
| Ni-MOFNs controlresearch_0371__mat__m_ni_mofns | Unknown · Pristine Control · Pristine Framework | monometal control prepared for XRD/XPS and electrochemical comparison; detailed recipe not separately reportednot specified for all measurements · not reported | 655-656 · 3.2-3.3 · Fig. 2d, Fig. 3a, Fig. 4a/e |
| NiCo(1:3)-MOFNs ratio controlresearch_0371__mat__m_nico_mofns | Unknown · Pristine Control · Mixed Metal | Ni:Co 1:3 ratio control; detailed precursor concentrations not separately reportednot specified for all measurements · not reported | SI p. 5 · Supplementary captions · Fig. S7 |
| NiCo(3:1)-MOFNs ratio controlresearch_0371__mat__m_nico_mofns | Unknown · Pristine Control · Mixed Metal | Ni:Co 3:1 ratio control; detailed precursor concentrations not separately reportednot specified for all measurements · not reported | SI p. 5 · Supplementary captions · Fig. S7 |
| NiCo-MOFNs on carbon foamresearch_0371__mat__m_nico_mofns | Electrode · Pristine Control · Mixed Metal | control substrate growthcarbon foam · not reported | SI p. 3 · Supplementary captions · Fig. S3 |
| NiCo-MOFNs on carbon paperresearch_0371__mat__m_nico_mofns | Electrode · Pristine Control · Mixed Metal | control substrate growthcarbon paper · not reported | 654 · Fig. 1 caption; 3.1 Preparation · Fig. 1d |
| NiCo-MOFNs on gold plateresearch_0371__mat__m_nico_mofns | Electrode · Pristine Control · Mixed Metal | control substrate growthgold plate · not reported | 654 · Fig. 1 caption; 3.1 Preparation · Fig. 1c |
| NiCo-MOFNs on Ni foamresearch_0371__mat__m_nico_mofns | Electrode · Pristine Control · Mixed Metal | control substrate growthNi foam · not reported | SI p. 3 · Supplementary captions · Fig. S3 |
| NiCo-MOFNs on nanoporous gold, 2 h growthresearch_0371__mat__m_nico_mofns | Electrode · Pristine Control · Mixed Metal | 2 h hydrothermal growth variantnanoporous gold coated stainless microneedle · not reported | 653 · 3.1 Preparation · Fig. S5b |
| vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growthresearch_0371__mat__m_nico_mofns | Electrode · Target Sample · Mixed Metal | hydrothermal growth at 120 degC for 4 h; washed with water; directly used as working electrodenanoporous gold coated stainless microneedle · average nanosheet thickness 65 nm | 653 · 2.2 Fabrication; 3.1 Preparation · Fig. 1a |
| NiCo-MOFNs on nanoporous gold, 6 h growthresearch_0371__mat__m_nico_mofns | Electrode · Pristine Control · Mixed Metal | 6 h hydrothermal growth variantnanoporous gold coated stainless microneedle · thicker bulk NiCo-MOFNs; numeric thickness not reported | 653 · 3.1 Preparation · Fig. S5d |
| nanoporous gold coated stainless microneedle substrateresearch_0371__mat__m_npg_substrate | Electrode · Composite Component · Composite | solid gold coated microneedle converted to nanoporous gold by CV alloying/dealloying; 40 cycles reported, full prior-work details not reproducedstainless microneedle · ligament width approximately 125 nm | 653 · 3.1 Preparation of vertically standing 2D NiCo-MOFNs on NPG · Scheme 1, Fig. S5a |
| paper-level NiCo-MOFNs sample unspecifiedresearch_0371__mat__m_nico_mofns | Unknown · Paper Level Unspecified · Unknown | used only where a reported result does not specify the exact physical specimen | 652-658 · whole article |