Primary studyPeripheral evidenceEnergy Storage

Electrochemical investigation of copper 1D conductive polymer for hybrid supercapacitor applications

Shah J.H., Sharif S., Shahbaz M. et al. · Journal of Energy Storage · 2024 · 114058

3materials
5samples
4synthesis routes
15measurements
65results
6claims and caveats

Evidence map

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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 Cu-PDA-MOF//AC hybrid device is claimed as a promising energy-storage material because it combines high specific capacity, energy density, power density and cycling stability.

Caveat: Performance is device-level and depends on the AC counter-electrode and electrode additives.

p007 · 5. Conclusions · Linked to 4 structured results

CaveatSupport assessment: High

Although the abstract mentions surface area and porosity, no numerical BET surface area, pore volume, pore size or gas-sorption isotherm was found in the supplied text files or rendered pages.

Caveat: Could still be present in an unrendered image embedded in the office SI, but the supplied SI3 text only lists FTIR, TGA and simulated XRD figures.

p001 · Abstract

Composite RoleSupport assessment: High

Cu-PDA-MOF acts as the battery-grade positive electrode and activated carbon as the capacitive-grade negative electrode in the hybrid device.

Caveat: Device assembly details such as separator and electrolyte are not fully specified in the extracted text.

p001 · Abstract · Linked to 3 structured results

Phase AssignmentSupport assessment: High

FTIR shifts of carboxylate stretches relative to free PDA are interpreted as evidence that PDA binds copper through carboxylate oxygen atoms.

office text · FTIR & Thermal Analysis · Figs. S1-S2 · Linked to 5 structured results

Structure Property LinkSupport assessment: Medium

The authors claim that the 1D Cu-PDA-MOF framework and pi-d conjugated pathways improve conductive behaviour and electrochemical performance.

Caveat: Conductivity is inferred from EIS and electrochemical behaviour; no direct electronic conductivity value in S/cm is reported.

p006 · 4.3 Discussion · Linked to 4 structured results

Transport MechanismSupport assessment: Medium

Charge storage is attributed to Cu+/Cu2+ redox involving OH- interaction with the Cu-PDA-MOF electrode.

Caveat: Mechanism is proposed from CV/GCD behaviour rather than operando oxidation-state measurement.

p004 · 4.1.1 Cyclic voltammetry · Eqs. 2-3 · Linked to 2 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
Cu-PDA-MOFC7 H7 Cu N O6Cu(II) centres coordinated by pyridine N, carboxylate O and aqua ligands · 2,6-pyridinedicarboxylic acid / pyridine-2,6-dicarboxylate (PDA/PDCA)1D · PristineMonoclinic P 21/c 1D coordination polymer; infinite 1D MOF growing along the 001 direction; described as having pi-d conjugated layers.p002-p003 · Introduction; 3.2 Single-crystal structure of Cu-PDA-MOF · Figures 2 and 3
Cu-PDA-MOF//AC hybrid supercapacitor deviceCu-PDA-MOF positive electrode paired with activated carbon negative electrodeCu centres in the Cu-PDA-MOF positive electrode · 2,6-pyridinedicarboxylate linker in Cu-PDA-MOF; activated carbon and PVDF are device componentsunknown · CompositeAsymmetric hybrid supercapacitor / supercapattery assembled from battery-grade Cu-PDA-MOF and capacitive-grade activated carbon.p005 · 4.2 Hybrid supercapacitor device performance · Figure 6
2,6-pyridinedicarboxylic acid controlnot extractednone · 2,6-pyridinedicarboxylic acid0D · Model SystemFree ligand FTIR control.office text · FTIR & Thermal Analysis · Fig. S2

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 5 sample records
SampleForm and roleProcessing and geometrySource
Activated-carbon negative electroderesearch_0844__mat__cu_pda_mof_ac_deviceElectrode · Composite Component · CompositeActivated-carbon electrode prepared using the same proportions and mass balancing equation.nickel foamp002-p003 · 2.3 Fabrication of electrodes · Eq. 1
Cu-PDA-MOF//AC hybrid deviceresearch_0844__mat__cu_pda_mof_ac_deviceElectrode · Composite Sample · CompositeTwo-electrode supercapattery using Cu-PDA-MOF positive electrode and activated carbon negative electrode.two-electrode asymmetric device; nickel-foam-supported electrodesp005 · 4.2 Hybrid supercapacitor device performance · Figure 6
Cu-PDA-MOF blue crystalsresearch_0844__mat__cu_pda_mofSingle Crystal · Target Sample · Pristine FrameworkAs-synthesised blue crystals obtained from aqueous CuCl2.2H2O/PDA/NaOH solution after sonication and 10 days crystallisation.p002 · 2.2 Synthesis of 1D Cu-PDA-MOF · Figure 1
Cu-PDA-MOF working electrode on nickel foamresearch_0844__mat__cu_pda_mofElectrode · Pristine Control · CompositeDrop-cast slurry of Cu-PDA-MOF, activated carbon and PVDF in NMP on conditioned nickel foam; dried at 70 deg C for 5 h.nickel foam, 1 cm2 x 1.5 cm2p002 · 2.3 Fabrication of electrodes
Free 2,6-PDA ligandresearch_0844__mat__pda_ligand_controlPowder · Model System · ModelFree ligand measured as FTIR comparison.office text · FTIR & Thermal Analysis · Fig. S2