Wang Z., Wang G., Qi H. et al. · Chemical Science · 2020 · 7665-7671
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.
The 1.3-2.6 V one-electron process gives better cycling stability than multi-electron windows because it imposes less structural strain on HHB-Cu.
Caveat: Extended-window capacities are higher initially, but the paper reports rapid decay; exact cycle-by-cycle values were not digitised.
SI p.34 · Table S2 note · Table S2; Fig. S22 · Linked to 4 structured results
HHB-Cu nanosheets are assigned as single-crystalline, highly ordered 2D c-MOF nanosheets with hexagonal packing and AB slipped-parallel stacking.
Caveat: No CIF file was assigned in this extraction package; structural model is based on PXRD/SAED/HRTEM as reported.
main p.3-p.4 · Results and discussion · Fig. 1C-D; Fig. 2C-E · Linked to 4 structured results
The ultrathin HHB-Cu nanosheet morphology improves Li-ion cathode performance relative to bulk HHB-Cu by shortening ion/electron diffusion pathways and exposing more active sites.
Caveat: Electrochemical values are from composite electrodes containing conductive additive and binder, but comparison uses the same conditions for nanosheet and bulk active materials.
main p.6 · Results and discussion · Fig. 4C-D · Linked to 6 structured results
SDS acts as a structure-directing surfactant that anchors to MOF surfaces, weakens interlayer interactions, promotes anisotropic 2D growth and stabilises ultrathin colloidal nanosheets.
Caveat: Mechanistic role is inferred by authors from morphology, surfactant-free controls and prior surfactant literature rather than a direct molecular binding measurement.
main p.3 · Results and discussion · Fig. 1A; Fig. S10-S14 · Linked to 4 structured results
The CuO4 unit is proposed as the dominant electrochemical active site for Li storage in HHB-Cu MOFs.
Caveat: Mechanistic assignment is supported by CV comparison and ex situ FT-IR, but not by direct operando structural quantification.
main p.6 · Results and discussion · Fig. S24-S25 · Linked to 4 structured results
HHB-Cu nanosheets behave as a low-conductivity p-type semiconductor, with thermally increasing conductivity and Hall-derived hole transport.
Caveat: The conductivity is low for a conductive MOF; only the 300 K value is numerically reported in text.
main p.4 · Results and discussion · Fig. S15-S17 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| HHB-Cu two-dimensional conjugated metal-organic frameworkBrowse family: Cu₃(C₆O₆)₂ (Cu–THQ / Cu–HHB) | HHB-Cu; framework based on CuO4 units and hexahydroxybenzene-derived ringsCopper ions in square-planar CuO4 coordination units; Cu species include Cu(II) and Cu(I) by XPS. · HHB, hexahydroxybenzene; synthesised from tetrahydroxy-1,4-quinone (THQ). | 2D · PristineLayer-stacked 2D c-MOF with hexagonal packing in the ab plane and an AB slipped-parallel stacking model. | main p.1 · Abstract |
| HHB-Ni two-dimensional conjugated metal-organic framework nanosheets | HHB-NiNickel ions coordinated to HHB-derived oxygen ligands. · HHB, hexahydroxybenzene; synthesised from tetrahydroxy-1,4-quinone (THQ). | 2D · PristineSingle-crystalline ultrathin 2D c-MOF nanosheets prepared by the same SDS-assisted solution method. | main p.4 · Results and discussion · Fig. S13 |
| HHTP-Cu two-dimensional conjugated metal-organic framework | HHTP-CuCopper ions coordinated to HHTP-derived oxygen ligands. · HHTP, 2,3,6,7,10,11-hexahydroxytriphenylene. | 2D · PristineSingle-crystalline ultrathin 2D c-MOF nanosheets; bulk material formed rod-like morphology without surfactant. | main p.4 · Results and discussion · Fig. S14 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| bulk HHB-Cu powderresearch_0043__mat__hhb_cu | Powder · Pristine Control · Pristine Framework | Control material synthesised without SDS, collected, washed and vacuum dried.Pellet thickness about 0.25 mm for conductivity measurement. | SI p.2 · Synthesis of bulk HHB-Cu |
| bulk HHB-Cu cathode electroderesearch_0043__mat__hhb_cu | Electrode · Pristine Control · Composite | Bulk HHB-Cu particles evaluated as cathode under the same electrochemical conditions as HHB-Cu NSs.Cu thin foil current collector | main p.5 · Results and discussion · Fig. 4 |
| HHB-Cu nanosheetsresearch_0043__mat__hhb_cu | Nanosheet · Target Sample · Pristine Framework | Surfactant-assisted solution-synthesised, repeatedly exfoliated/sonicated nanosheets; upper colloidal suspension dried under vacuum.Si substrate for SEM; copper grids for TEM; 300 nm SiO2/Si for optical microscopy/AFM; quartz substrate for UV/vis where measured. · 4.2 +/- 1.1 nm by AFM/Table S1; described as 4-5 nm, about 8-10 layers. | SI p.33 · Table S1 · Table S1 |
| HHB-Cu NS organic cathode electroderesearch_0043__mat__hhb_cu | Electrode · Composite Sample · Composite | HHB-Cu NSs blended with super P and sodium alginate binder, slurry cast, punched into 1 cm discs and vacuum dried.Cu thin foil current collector | SI p.2 · Preparation of organic cathodes |
| HHB-Ni nanosheetsresearch_0043__mat__hhb_ni | Nanosheet · Target Sample · Pristine Framework | SDS-assisted solution-synthesised nanosheets; upper colloidal suspension collected and vacuum dried.Si substrate for SEM; copper grids for TEM; 300 nm SiO2/Si for AFM. · 4.5 +/- 1.4 nm, about 9 layers. | SI p.33 · Table S1 · Table S1 |
| bulk HHTP-Cu rod-like powderresearch_0043__mat__hhtp_cu | Powder · Pristine Control · Pristine Framework | Bulk powder obtained without surfactant; rod-like morphology. | main p.4 · Results and discussion · Fig. S14 |
| HHTP-Cu nanosheetsresearch_0043__mat__hhtp_cu | Nanosheet · Target Sample · Pristine Framework | SDS-assisted solution-synthesised nanosheets; upper colloidal suspension collected and vacuum dried.Si substrate for SEM; copper grids for TEM; 300 nm SiO2/Si for AFM. · 5.1 +/- 2.6 nm, about 10 layers. | SI p.33 · Table S1 · Table S1 |