Su X., Cheng L., Yan X. et al. · Journal of the American Chemical Society · 2025 · 18338-18348
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.
Amide-functionalised Cu-HBB-MOF outperforms imine Cu-Salphen-MOF in potassium-ion battery capacity, cycling stability and rate capability.
Caveat: Battery measurements use composite electrodes containing Super P and PVDF; blank control is qualitative/minimal-impact rather than fully quantified in text.
p005 / 18342 · Electrochemical Characterization · Figure 3 · Linked to 6 structured results
The 6OH-HBB ligand coordinates Cu2+ through both the N2O2 pocket and peripheral hydroxyl groups, forming a layered 2D Cu-HBB-MOF with multiple active sites.
Caveat: Structure is assigned by PXRD/Rietveld and HRTEM, not single-crystal MOF data.
p002 / 18339 · Results and Discussion · Scheme 1; Figure 1 · Linked to 4 structured results
Cu-HBB-MOF maintains its framework and Cu coordination environment during K+ insertion/extraction and long-term cycling.
Caveat: Cycled-state measurements are on composite electrodes; SI notes particles in some microscopy images include Super P + PVDF.
p008 / 18345 · K+ storage mechanism · Figures S38-S42; Tables S10-S16 · Linked to 4 structured results
DFT/MESP calculations indicate metallic electronic character and three classes of K+ binding sites, supporting a 12 K+ per repeating-unit storage mechanism.
Caveat: Electronic transport is inferred from computed DOS; no experimental conductivity or mobility measurement is provided in this paper.
p008 / 18345 · DFT calculations · Figure 5 · Linked to 6 structured results
Cu-HBB-MOF has lower charge-transfer resistance, higher capacitive contribution and higher K+ diffusion coefficients than Cu-Salphen-MOF, indicating faster electrochemical kinetics.
Caveat: No direct four-probe electrical conductivity value is reported for the MOF powders or films.
p006 / 18343 · Electrochemical Characterization · Figures 3f-h; S30-S32 · Linked to 6 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| 6OH-HBB ligand | C20H16N2O10 inferred from [M-H]+ 443.0805; source reports C20H15N2O10 [M-H]+none · N,N'-(4,5-dihydroxy-1,2-phenylene)bis(2,4,5-trihydroxybenzamide) | 0D · UnknownMolecular linker precursor for Cu-HBB-MOF | S8-S9 · Section 2.1 Synthesis of Ligands · Scheme S1 |
| 6OH-Salphen ligand | not fully specified in this papernone · 5,5'-((1E,1'E)-((4,5-dihydroxy-1,2-phenylene)bis(azaneylylidene))bis(methaneylylidene))bis(benzene-1,2,4-triol) | 0D · UnknownMolecular linker precursor for Cu-Salphen-MOF | S9 · Section 2.1 Synthesis of Ligands · Scheme S1 |
| Cu-HBB-MOF | C20H6Cu2.5N2O10.H2O (EA/ICP empirical formula); Rietveld moiety C40H12Cu5N4O20Cu2+ centres forming [CuO4] square-planar units and Cu in N2O2 pockets · hexahydroxy salicylamide ligand 6OH-HBB | 2D · PristineLayered 2D c-MOF, AA stacking, P6/mmm from synchrotron PXRD/Rietveld refinement | p002 / 18339 · Results and Discussion · Scheme 1; Figure 1 |
| Cu-Salphen-MOF | C20H8Cu2.5N2O8.3H2O (EA/ICP empirical formula); Rietveld moiety C40H16Cu5N4O16Cu2+ centres forming [CuO4] square-planar units and Cu in N2O2 pockets · 6OH-Salphen ligand | 2D · PristineLayered 2D c-MOF analogue, AA stacking, P6/mmm from synchrotron PXRD/Rietveld refinement | p002 / 18339 · Results and Discussion · Figure 1; Scheme S3 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| 6OH-HBB ligand white solidresearch_0646__mat__mat_6oh_hbb_ligand | Powder · Unknown · Unknown | filtered and washed with water after BBr3 demethylation | S9 · Section 2.1 |
| 6OH-Salphen ligandresearch_0646__mat__mat_6oh_salphen_ligand | Powder · Unknown · Unknown | prepared according to prior reported procedures; this paper does not provide full route | S9 · Section 2.1 Synthesis of Ligands · Scheme S1 |
| Cu-HBB-MOF-12K DFT modelresearch_0646__mat__mat_cu_hbb_mof | Model · Model System · Model | fully K-inserted model configuration | S31-S32 · Theoretical Specific Capacity Calculation · Figure S27 |
| Cu-HBB-MOF-6K DFT modelresearch_0646__mat__mat_cu_hbb_mof | Model · Model System · Model | K-inserted model configuration | p008 / 18345 · Results and Discussion · Figure 5e-f |
| Cu-HBB-MOF-8K DFT modelresearch_0646__mat__mat_cu_hbb_mof | Model · Model System · Model | K-inserted model configuration | p008 / 18345 · Results and Discussion · Figure 5e-f |
| Cu-HBB-MOF-9K DFT modelresearch_0646__mat__mat_cu_hbb_mof | Model · Model System · Model | K-inserted model configuration used to compare binding geometry | S46 · Section 12 · Figure S43 |
| Cu-HBB-MOF cathode electrode in CR2025 potassium half-cellresearch_0646__mat__mat_cu_hbb_mof | Electrode · Composite Sample · Composite | 2D c-MOF/Super P/PVDF 60:30:10 wt% cast from anhydrous NMP; dried at 80 C in vacuum for 12 hcarbon coated aluminium foil · active-material loading 0.8-1.0 mg cm-2 | S5 · Electrochemical measurements |
| DFT model of pristine Cu-HBB-MOFresearch_0646__mat__mat_cu_hbb_mof | Model · Model System · Model | geometry optimised DFT model | S6 · Calculation Methods |
| as-synthesised Cu-HBB-MOF black powderresearch_0646__mat__mat_cu_hbb_mof | Powder · Target Sample · Pristine Framework | filtered, washed with DMF/EtOH/DCM, dried under vacuum | S9-S10 · Section 2.2 Synthesis of 2D c-MOFs · Scheme S2 |
| Cu-Salphen-MOF cathode electrode in CR2025 potassium half-cellresearch_0646__mat__mat_cu_salphen_mof | Electrode · Composite Sample · Composite | 2D c-MOF/Super P/PVDF 60:30:10 wt% cast from anhydrous NMP; dried at 80 C in vacuum for 12 hcarbon coated aluminium foil · active-material loading 0.8-1.0 mg cm-2 | S5 · Electrochemical measurements |
| as-synthesised Cu-Salphen-MOF black powderresearch_0646__mat__mat_cu_salphen_mof | Powder · Pristine Control · Pristine Framework | filtered, washed with DMF/EtOH/DCM, dried under vacuum | S10 · Section 2.2 Synthesis of 2D c-MOFs · Scheme S3 |
| Super P + PVDF blank electroderesearch_0646__mat__mat_cu_hbb_mof | Electrode · Pristine Control · Composite | blank current-collector/additive/binder controlcarbon coated aluminium foil | S29 · Section 12 · Figure S23 |