Primary studyPeripheral evidenceEnergy Storage

A tribenzocoronene-based 2D conductive metal-organic framework for efficient energy storage

Zhao J., Zhang T., Ren J. et al. · Chemical Communications · 2023 · 2978-2981

3materials
7samples
5synthesis routes
18measurements
93results
5claims 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 combination of acid stability, moderate conductivity, nanochannels and redox-active sites enables high supercapacitor performance in acidic electrolyte.

Caveat: Application measurements are on composite electrodes containing conductive carbon and Nafion; pristine-framework transport is separately measured on pellets.

p004 · Summary · Linked to 6 structured results

Phase AssignmentSupport assessment: High

Cu-TBC is assigned as a crystalline 2D conductive MOF with AA stacking and P6 symmetry.

Caveat: Structure is based on PXRD/Pawley refinement, simulation and TEM lattice fringes; no CIF/main single-crystal structure provided in the assigned files.

p002 · Structure characterisation · Fig. 1 · Linked to 5 structured results

Transport MechanismSupport assessment: Medium

Cu-TBC behaves as a moderately conductive semiconductor-like framework over 298-360 K.

Caveat: Conductivity was measured by two-probe pellet geometry; contact resistance may contribute. Temperature-dependent values are mostly graphical.

p003 · Electrical properties · Fig. S8 · Linked to 3 structured results

Transport MechanismSupport assessment: Medium

The proposed reversible redox process during charge/discharge is ligand-centred on hydroxyl groups rather than a Cu valence-state change.

Caveat: The paper describes this as inferred from comparison with 6OH-TBC and absence of new Cu-TBC redox peaks; direct operando valence evidence is not reported in the assigned text.

S21 · Section 13 · Scheme S2 · Linked to 2 structured results

Transport MechanismSupport assessment: High

Charge storage in the Cu-TBC electrode combines electric-double-layer and pseudocapacitive contributions, with pseudocapacitance dominant.

Caveat: Contribution analysis depends on Trasatti/Dunn assumptions and CV-derived fitting.

p003 · Charge-storage analysis · Fig. 3 · Linked to 3 structured results

Material identities

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

MaterialCompositionStructure contextSource
6OH-TBC ligandC36H18O6none · hexahydroxyl tribenzocoronene0D · Model SystemOrganic ligand and electrochemical control; not a MOFS7 · Section 2. Synthetic Procedures · Scheme S1
Cu-TBC{C72H24Cu3O12}n; also written as Cu3(6O-TBC)2Cu2+ nodes from bis(1,1,1-trifluoropentane-2,4-dionato-O,O')copper · hexahydroxyl tribenzocoronene (6OH-TBC)2D · Pristine2D conductive MOF, AA-stacking model, P6 space group from Pawley refinement / structural simulationp001 · Abstract/introduction
Cu-TBC//AC asymmetric deviceCu-TBC anode // activated carbon cathode with 0.1 M H2SO4 electrolyteCu in Cu-TBC anode · 6OH-TBC-derived Cu-TBC anode; activated carbon cathodeunknown · CompositeTwo-electrode asymmetric supercapacitor device containing Cu-TBC composite electrodep003 · Electrochemical performance · Fig. 4

Sample register

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

Show 7 sample records
SampleForm and roleProcessing and geometrySource
6OH-TBC ligand control electroderesearch_0840__mat__mat_6oh_tbcElectrode · Pristine Control · Compositeligand investigated electrochemically for comparison with Cu-TBCelectrochemical electrode, details not separately specified for ligand controlS20 · Section 13. Proposed Redox Mechanism · Fig. S14
AA-stacking structural model of Cu-TBCresearch_0840__mat__mat_cutbcModel · Model System · ModelForcite / Material Studio model fitted to PXRDS25 · Section 16. Atomic Coordinates · Table S9
two-electrode asymmetrical Cu-TBC//AC deviceresearch_0840__mat__mat_cutbc_ac_deviceElectrode · Composite Sample · Compositeassembled two-electrode device with 50 uL 0.1 M H2SO4 electrolyteCu-TBC-loaded titanium mesh anode; AC-loaded titanium mesh cathode; NKK-MPF30AC-100 separator · Cu-TBC active mass approx. 0.53 mg cm-2; AC active mass approx. 5.3 mg cm-2S9-S10 · Section 3. Preparation of Two-electrode Asymmetrical MOF//AC device
Cu-TBC modified glassy carbon electroderesearch_0840__mat__mat_cutbcElectrode · Target Sample · CompositeCu-TBC/carbon black/Nafion slurry drop-cast and air dried 1 hglassy carbon electrode, area 0.07 cm2 · MOF loading 1.14 mg cm-2S9 · Section 3. Standard three-electrode system measurements
pressed Cu-TBC pelletresearch_0840__mat__mat_cutbcPellet · Target Sample · Pristine Frameworkpressed pellet for two-probe conductivitygold wires attached with silver colloidp002 · Electrical properties · Fig. S8
as-prepared Cu-TBC black powderresearch_0840__mat__mat_cutbcPowder · Target Sample · Pristine Frameworksolvothermally prepared, filtered, washed with DMAc/MeOH/acetone and vacuum driedS8 · Section 2. Preparation of Cu-TBC
Cu-TBC film electrode on titanium meshresearch_0840__mat__mat_cutbcElectrode · Composite Component · CompositeCu-TBC/carbon black/Nafion slurry spread on Ti mesh and dried at 80 degC under vacuum overnightround titanium mesh electrode, r = 0.6 cm · active mass approximately 0.53 mg cm-2 in deviceS9 · Section 3. Preparation of the MOF and AC film electrode