Khan J., Iqbal M.Z., Rubab B. et al. · Journal of Energy Storage · 2023 · 108655
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 Cu-MOF//activated carbon asymmetric device delivers high energy density, high power density and stable cycling for hybrid supercapacitor applications.
Caveat: Device metrics are for the reported prototype; full cell assembly details and mass normalisation basis beyond the equations are not exhaustively specified.
6-8 · Two electrode configuration; Conclusion · Fig. 7 · Linked to 5 structured results
The paper discusses electrical conductivity but does not report a direct electrical conductivity or thermoelectric measurement for pristine Cu-MOF.
Caveat: Transport evidence in this extraction is EIS-derived and electrode/device-level, not intrinsic bulk or single-crystal conductivity.
1, 5-6 · Abstract; Three cell configurations · Fig. 5 · Linked to 4 structured results
High surface area, microporosity and flaky nanoflower morphology are proposed to enhance ion diffusion and electrochemical active-site access.
Caveat: The link is mainly correlative; no controlled morphology or porosity series is reported.
4-6 · Structural analysis; Three cell configurations · Figs. 2, 5 · Linked to 5 structured results
Cu-MOF electrode charge storage is dominated by Faradaic/diffusion-controlled redox behaviour rather than pure capacitive storage.
Caveat: The tested electrode contains acetylene carbon and PVDF binder on nickel foam; mechanism is inferred from CV/GCD simulation rather than direct in situ chemical speciation.
4-5 · Three cell configurations · Fig. 3 · Linked to 5 structured results
The assembled device shows hybrid charge storage with diffusion dominance at low scan rate and increasing capacitive contribution at high scan rate.
Caveat: Contribution percentages come from simulated k1/k2 separation of CV curves, not independently measured species transport.
7-8 · Two electrode configuration · Fig. 9 · Linked to 3 structured results
Low Rct and ESR from EIS are used to claim sound conductivity and rapid ion/electron transport in the Cu-MOF composite electrode.
Caveat: No four-probe or direct electronic conductivity value is reported; EIS reflects the composite electrode/electrolyte interface.
5-6 · Three cell configurations · Fig. 5 · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Activated carbon negative electrode | Activated carbon electrode; exact formulation not reported | unknown · UnknownActivated carbon used as negative electrode material in the asymmetric device. | 2 · Fabrication of electrodes and characterizations detail |
| Isonicotinic acid-based copper MOF (Cu-MOF) | Exact empirical formula not reported; copper complex of isonicotinic acid/pyridine-4-carboxylateCu ions / copper centres · Isonicotinic acid (pyridine-4-carboxylic acid) | unknown · PristineCopper ion embedded between two pyridine-4-carboxylic acid ligands with four coordination bonds; XRD assigned to copper MOF JCPDS-No. 11-0927 with cubic crystal system and low-crystallinity broad peaks. | 3-4 · Results and discussion; Structural and surface analysis · Fig. 2 |
| Cu-MOF composite positive electrode | 80 wt% Cu-MOF + 10 wt% acetylene + 10 wt% PVDF on nickel foamCu centres from Cu-MOF · Isonicotinic-acid Cu-MOF framework plus PVDF binder | unknown · CompositeSlurry-cast composite electrode using Cu-MOF active material, conductive acetylene carbon, and PVDF binder on washed nickel foam. | 2-3 · Fabrication of electrodes and characterizations detail |
| Cu-MOF//activated carbon hybrid supercapacitor device | Cu-MOF positive electrode // activated carbon negative electrode in 1 M KOHCu centres in positive electrode · Isonicotinic-acid Cu-MOF in positive electrode | unknown · CompositeAsymmetric two-electrode hybrid supercapacitor using Cu-MOF positive electrode, activated carbon negative electrode, porous separator and KOH electrolyte. | 6 · Two electrode configuration · Fig. 6 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Activated carbon negative electroderesearch_0430__mat__mat_activated_carbon_electrode | Electrode · Composite Component · Unknown | Activated carbon active material with 6.50 mg employed for corresponding electrode; full binder/current-collector recipe not reported separately.Electrode substrate not fully specified; used as negative electrode | 2-3 · Fabrication of electrodes and characterizations detail |
| Sky blue Cu-MOF crystalsresearch_0430__mat__mat_cumof | Powder · Target Sample · Pristine Framework | Hydrothermally synthesised, collected, washed and dried. | 2 · Synthesis of electrode material · Fig. 1 |
| Cu-MOF/Ni foam working electroderesearch_0430__mat__mat_cumof_electrode_composite | Electrode · Composite Sample · Composite | 80:10:10 Cu-MOF:acetylene:PVDF slurry in NMP, stirred 6 h, coated, dried 6 h at 60 C.Washed nickel foam current collector, 1 cm2 coated portion | 2-3 · Fabrication of electrodes and characterizations detail |
| Cu-MOF//activated carbon asymmetric hybrid supercapacitorresearch_0430__mat__mat_hybrid_device | Electrode · Composite Sample · Composite | Cu-MOF positive electrode and activated carbon negative electrode assembled with thin porous membrane and 1 M KOH electrolyte.Two-electrode assembly with porous membrane separator | 6 · Two electrode configuration · Fig. 6 |