Primary studyCore evidenceTransport Physics

Morphology Control of Mixed Metallic Organic Framework for High-Performance Hybrid Supercapacitors

Mohanty A., Kang K.-N., Saravanakumar B. et al. · Small · 2024 · 2308771

6materials
13samples
12synthesis routes
22measurements
64results
5claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

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 H2BDC-80 positive electrode paired with 3D NCF/Cu gives a high-performance asymmetric hybrid supercapacitor.

Caveat: Full-cell cycling retention is lower than three-electrode retention and drops sharply in the first 100 cycles.

main p.8 · Results and Discussion · Figure 4 · Linked to 4 structured results

Phase AssignmentSupport assessment: Medium

XRD peak sets for each linker family are assigned to NiCo-MOF formation on NiCoO2@Ni.

Caveat: The paper states the thorough chemical reaction and precise MOF structure are not fully clear; assignments rely on comparison with previous literature.

main p.4 · Results and Discussion · Figure 2b · Linked to 4 structured results

Structure Property LinkSupport assessment: High

H2BDC-80 is the best-performing electrode among all nine samples because its 2D nanosheet morphology offers high surface area, ion access and electron/mass transfer pathways.

Caveat: H2BDC-80 has lower cycling retention than Benzoic Acid-80 and H3BTC-100 in three-electrode cycling.

main p.7 · Results and Discussion · Figure 3 · Linked to 4 structured results

Transport MechanismSupport assessment: High

Direct binder-free growth of H2BDC-80 on the conductive current collector improves electron transport relative to a slurry-based electrode.

Caveat: Slurry composition and fabrication details are not provided in the supplied text.

main p.5 · Results and Discussion · Figure S22; Table S1 · Linked to 2 structured results

Transport MechanismSupport assessment: High

The main charge-storage process in H2BDC-80 is diffusion-controlled, with b values near 0.5 and 82% diffusion contribution at 5 mV s-1.

Caveat: The kinetic model is electrochemical, not a direct electronic conductivity measurement.

SI p.22 · Charge storage contribution · Figures S23-S24 · Linked to 3 structured results

Material identities

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

MaterialCompositionStructure contextSource
NiCo-MOF@NiCoO2@Ni (H2BDC-80)//3D NiCu-C@Fe4N/Cu hybrid supercapacitorNiCo-MOF@NiCoO2@Ni//3D NiCu-C@Fe4N/CuPositive electrode Ni/Co MOF plus NiCoO2; negative electrode NiCu-C@Fe4N. · H2BDC in the positive electrode.unknown · CompositeAsymmetric HSC/supercapattery assembled from binder-free positive and negative electrodes.main p.9 · Experimental Section
3D NiCu-C@Fe4N/Cu negative electrode3D NiCu-C@Fe4N/CuNiCu alloy/foam with carbon-doped Fe4N derived coating on Cu foil. · none3D · DerivedHierarchical microporous negative electrode for asymmetric HSC device.main p.7 · Results and Discussion · Figure 4
Benzoic-acid-linked NiCo-MOF@NiCoO2@NiNiCo-MOF@NiCoO2@Ni; linker benzoic acid (C7H6O2)Mixed Ni2+/Co2+ nodes coordinated to carboxylate linkers; NiCoO2 core on Ni foil. · Benzoic acid, one carboxyl group on benzene ring.1D · CompositeCore-shell NiCo-MOF/NiCoO2 electrode; benzoic acid directs nanoneedle/nanorod morphology and reported 1D MOF character.main p.2 · Results and Discussion · Figure 1
Terephthalic-acid-linked NiCo-MOF@NiCoO2@NiNiCo-MOF@NiCoO2@Ni; linker terephthalic acid / H2BDC (C8H6O4)Mixed Ni2+/Co2+ nodes coordinated to terephthalate linkers; NiCoO2 core on Ni foil. · Terephthalic acid / H2BDC, two carboxyl groups on benzene.2D · CompositeCore-shell NiCo-MOF/NiCoO2 electrode; H2BDC directs nanosheet morphology and reported 2D MOF structure.main p.2 · Results and Discussion · Figure 1
Trimesic-acid-linked NiCo-MOF@NiCoO2@NiNiCo-MOF@NiCoO2@Ni; linker trimesic acid / H3BTC (C9H6O6)Mixed Ni2+/Co2+ nodes coordinated to trimesate linkers; NiCoO2 core on Ni foil. · Trimesic acid / H3BTC, three carboxyl groups on benzene.3D · CompositeCore-shell NiCo-MOF/NiCoO2 electrode; H3BTC directs nanomesh morphology and reported 3D MOF character.main p.2 · Results and Discussion · Figure 1
NiCoO2@Ni precursor electrodeNiCoO2@NiMixed nickel cobalt oxide on nickel foil. · noneunknown · DerivedHexagonal micropetal-based rose-like NiCoO2 core formed from cross-linked nanoneedle arrays.main p.2 · Results and Discussion · Figure S5

Sample register

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

Show 13 sample records
SampleForm and roleProcessing and geometrySource
Benzoic Acid-100research_0708__mat__nico_mof_benzoic_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 100 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Nanoneedle/nanorod average thickness 100 nm.main p.4 · Results and Discussion · Figure S4
Benzoic Acid-60research_0708__mat__nico_mof_benzoic_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 60 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Nanoneedle/nanorod average thickness 68 nm.main p.2 · Results and Discussion · Figure S4
Benzoic Acid-80research_0708__mat__nico_mof_benzoic_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 80 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Nanoneedle/nanorod average thickness 92 nm; electrode thickness around 27.5 um.SI p.4 · Figure S6 discussion · Figure S6
H2BDC-100research_0708__mat__nico_mof_h2bdc_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 100 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Not reported.main p.4 · Results and Discussion · Figure S7
H2BDC-60research_0708__mat__nico_mof_h2bdc_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 60 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Not reported.main p.2 · Results and Discussion · Figure S7
H2BDC-80research_0708__mat__nico_mof_h2bdc_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 80 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Electrode thickness approximately 95 um.SI p.4 · Figure S6 discussion · Figure S6
H3BTC-100research_0708__mat__nico_mof_h3btc_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 100 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Electrode thickness 35.4 um.SI p.4 · Figure S6 discussion · Figure S6
H3BTC-60research_0708__mat__nico_mof_h3btc_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 60 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Not reported.main p.4 · Results and Discussion · Figure S8
H3BTC-80research_0708__mat__nico_mof_h3btc_nicoo2_niElectrode · Target Sample · CompositeSolvothermal MOF growth at 110 C for 80 min; ethanol wash; dried at 85 C for 12 h.NiCoO2@Ni / nickel foil current collector · Not reported.main p.4 · Results and Discussion · Figure S8
H2BDC-80//3D NCF/Cu hybrid supercapacitorresearch_0708__mat__hsc_h2bdc80_ncf_deviceUnknown · Composite Sample · CompositePositive and negative binder-free electrodes sandwiched in 2 M KOH electrolyte; total active area 2 cm2.Split test cell with cellulose separator · Not reported.main p.9 · Experimental Section
3D NiCu-C@Fe4N/Cu negative electroderesearch_0708__mat__ncf_cu_negativeElectrode · Composite Component · Derived CarbonChronopotentiometric NiCu deposition followed by TEG/NaOH treatment and FeCl3/melamine anneal.Copper foil current collector · Not reported.main p.9 · Experimental Section
NiCoO2@Ni precursor electroderesearch_0708__mat__nicoo2_ni_coreElectrode · Pristine Control · Mixed MetalHydrothermal product annealed at 350 C under Ar for 1 h.Nickel foil · Not reported for oxide precursor.main p.9 · Experimental Section
Slurry-based H2BDC-80 electroderesearch_0708__mat__nico_mof_h2bdc_nicoo2_niElectrode · Pristine Control · CompositeSlurry-coated comparison electrode; binder formulation not specified in supplied text.Current collector not fully specified in extracted text. · Not reported.main p.5 · Results and Discussion · Figure S22 and Table S1