Gittins J.W., Balhatchet C.J., Chen Y. et al. · Journal of Materials Chemistry A · 2021 · 16006-16015
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.
Cu3(HHTP)2 powder can be synthesised from commercially available starting materials and processed by standard electrode-fabrication methods to give good EDLC capacitive performance.
Caveat: Requires carbon additive for practical electrode resistance; air sensitivity and Cu(I) formation in films are caveats.
p006 · Conclusions · Linked to 3 structured results
Although Cu3(HHTP)2 achieves MOF capacitance comparable to Ni3(HITP)2 and near or above YP50F specific capacitance, it has poorer voltage window, rate capability and cycling stability than commercial activated carbon.
Caveat: Direct application comparisons depend on different voltage windows and current densities.
p006 · Results and discussion · Figs. S24-S25 · Linked to 5 structured results
Cu3(HHTP)2 EDLCs have a limited stable double-layer voltage window and show faradaic/degradation signatures at voltages relevant to operation.
Caveat: Some changes are kinetically dependent and scan-rate dependent; degradation mechanism remains unresolved.
p005 · Results and discussion · Figs. S17-S19 · Linked to 4 structured results
Carbon black/acetylene black contributes little capacitance directly but is necessary to reduce cell resistance and obtain good capacitive performance from Cu3(HHTP)2 electrodes.
Caveat: Conductive-additive loading was not optimised.
p003 · Results and discussion · Figs. S5-S7 · Linked to 3 structured results
PXRD was compatible with both simulated structures, but Cu K-edge XANES better supported a near-eclipsed Cu3(HHTP)2 crystal structure.
Caveat: PXRD data quality was insufficient for Rietveld refinement.
p003 · Results and discussion · Fig. 1 · Linked to 3 structured results
The similar capacitance of Cu3(HHTP)2 and literature Ni3(HITP)2 suggests capacitance is governed more by the 3D electrode/electrolyte structure than by the metal node or linker heteroatom for these nearly isostructural MOFs.
Caveat: Authors state significant additional work across wider MOF/electrolyte sets is needed to confirm the hypothesis.
p004 · Results and discussion · Fig. 3 · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu3(HHTP)2Browse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu3(HHTP)2Cu nodes; Cu(II) dominant in as-synthesised powder · HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene | 2D · PristineLayered pi-d conjugated 2D sheets stacking into a 3D honeycomb pore/channel structure; PXRD compatible with eclipsed and near-eclipsed models, XANES supports near-eclipsed structure. | p001 · Abstract; Introduction · Fig. 1 |
| Cu3(HHTP)2 composite electrode filmBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | 85 wt% Cu3(HHTP)2 / 10 wt% acetylene black / 5 wt% PTFECu nodes from Cu3(HHTP)2 · HHTP from Cu3(HHTP)2 | 2D · CompositeComposite film containing layered Cu3(HHTP)2 powder plus conductive carbon and PTFE binder. | p003 · Results and discussion |
| YP50F activated carbon | activated carbon | unknown · DerivedCommercial microporous activated-carbon EDLC comparator. | p006 · Experimental section - Materials |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| acetylene black/PTFE filmresearch_0040__mat__yp50f_carbon | Electrode · Pristine Control · Derived Carbon | Prepared using same freestanding-film method.freestanding | p007 · Electrode film preparation |
| Cu3(HHTP)2 composite film electroderesearch_0040__mat__cu3_hhtp2_composite_electrode | Electrode · Composite Sample · Composite | Freestanding film rolled from slurry and dried in vacuo at 75 C for at least 48 h.freestanding · ca. 250 um | p003 · Results and discussion |
| Cu3(HHTP)2 symmetric EDLC cell 1research_0040__mat__cu3_hhtp2_composite_electrode | Electrode · Composite Sample · Composite | Symmetric EDLC with Cu3(HHTP)2 composite electrodes and 1 M NEt4BF4/acetonitrile.Swagelok PFA-820-6 union tube fitting | p023 · Table S3 · Table S3 |
| Cu3(HHTP)2 symmetric EDLC cell 2research_0040__mat__cu3_hhtp2_composite_electrode | Electrode · Composite Sample · Composite | Symmetric EDLC with Cu3(HHTP)2 composite electrodes and 1 M NEt4BF4/acetonitrile.Swagelok PFA-820-6 union tube fitting | p023 · Table S3 · Table S3 |
| Cu3(HHTP)2 symmetric EDLC cell 3research_0040__mat__cu3_hhtp2_composite_electrode | Electrode · Composite Sample · Composite | Symmetric EDLC with Cu3(HHTP)2 composite electrodes and 1 M NEt4BF4/acetonitrile.Swagelok PFA-820-6 union tube fitting | p023 · Table S3 · Table S3 |
| Cu3(HHTP)2 symmetric EDLC cell 4 from sample Bresearch_0040__mat__cu3_hhtp2_composite_electrode | Electrode · Composite Sample · Composite | Symmetric EDLC from sample B; used for areal capacitance comparison.Swagelok EDLC fitting | p024 · Table S4 · Table S4 |
| Cu3(HHTP)2 symmetric EDLC cell 5 from soaked sample Xresearch_0040__mat__cu3_hhtp2_composite_electrode | Electrode · Composite Sample · Composite | Symmetric EDLC from soaked sample X; stable double-layer window determined as 0.8 V.Swagelok EDLC fitting | p024 · Table S4 · Table S4 |
| simulated eclipsed Cu3(HHTP)2 structureresearch_0040__mat__cu3_hhtp2 | Model · Model System · Model | Hexagonal P622 eclipsed computational structure. | p021 · Table S1 · Table S1 |
| simulated near-eclipsed Cu3(HHTP)2 structureresearch_0040__mat__cu3_hhtp2 | Model · Model System · Model | Monoclinic C2 near-eclipsed computational structure. | p021 · Table S1 · Table S1 |
| Cu3(HHTP)2/PTFE film without conductive additiveresearch_0040__mat__cu3_hhtp2 | Electrode · Pristine Control · Composite | Freestanding film prepared using same film method but excluding carbon black.freestanding | p003 · Results and discussion |
| as-synthesised Cu3(HHTP)2 powderresearch_0040__mat__cu3_hhtp2 | Powder · Target Sample · Pristine Framework | Dark blue powder, vacuum dried at 75 C for 72 h and stored in N2-filled glovebox. | p006 · Synthesis of Cu3(HHTP)2 |
| pressed Cu3(HHTP)2 pelletresearch_0040__mat__cu3_hhtp2 | Pellet · Pristine Control · Pristine Framework | 13 mm pellet die; 3 ton-force cm-2 for 5 min; areal mass loading approximately 50 mg cm-2.approximately 330 um | p007 · Conductivity measurements |
| pristine uncycled Cu3(HHTP)2 film electrode 1aresearch_0040__mat__cu3_hhtp2_composite_electrode | Electrode · Composite Sample · Composite | Pristine film electrode soaked in NEt4BF4/acetonitrile before XANES linear-combination fitting.freestanding | p010 · Figure S9 and Table S2 · Table S2 |
| pristine uncycled Cu3(HHTP)2 film electrode 1bresearch_0040__mat__cu3_hhtp2_composite_electrode | Electrode · Composite Sample · Composite | Pristine film electrode soaked in NEt4BF4/acetonitrile before XANES linear-combination fitting.freestanding | p010 · Figure S9 and Table S2 · Table S2 |
| Cu3(HHTP)2 powder sample Aresearch_0040__mat__cu3_hhtp2 | Powder · Target Sample · Pristine Framework | Washed as described in the main synthesis; not soaked after washing. | p006 · Figure S4 caption · Fig. S4 |
| Cu3(HHTP)2 powder sample Bresearch_0040__mat__cu3_hhtp2 | Powder · Target Sample · Pristine Framework | Washed as described in the main synthesis; not soaked after washing. | p006 · Figure S4 caption · Fig. S4 |
| Cu3(HHTP)2 powder sample Xresearch_0040__mat__cu3_hhtp2 | Powder · Target Sample · Pristine Framework | Soaked after washing in water, ethanol and acetone. | p006 · Figure S4 caption · Fig. S4 |
| YP50F activated-carbon film electroderesearch_0040__mat__yp50f_carbon | Electrode · Pristine Control · Derived Carbon | Freestanding YP50F/PTFE film; electrodes dried in vacuo at 100 C before coin-cell assembly.freestanding | p007 · EDLC assembly |