Li M.-Q., Cao Y., Qin L. et al. · Nano Research · 2024 · 2181-2185
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.
Composite electrodes based on Bi-DSBDC-DMA show reversible lithium storage, reaching about 250 mAh/g after 200 cycles at 200 mA/g.
Caveat: Electrode is a composite containing 30 wt% carbon black and 10 wt% CMC; the headline cycling capacity is an electrode/application result, not a pristine-pellet transport property.
rendered page 1 / article p.2181 · Abstract · Figure 4d · Linked to 4 structured results
Bi-DSBDC-DMA remains crystalline after vacuum drying and even after ball-milling into aqueous slurry plus vacuum drying during electrode preparation.
Caveat: Crystallinity is reduced after 120 C vacuum drying; statement is based on PXRD peak positions, not full retention of crystallite size or order.
rendered page 2 / article p.2182 · Results and discussion · Figure 2 · Linked to 2 structured results
Pristine Bi-DSBDC-DMA behaves as a semiconductor, with optical band gap 2.2 eV and room-temperature pressed-pellet conductivity 2 x 10^-8 S/cm.
Caveat: Conductivity was measured by a two-probe pressed-pellet geometry; contact resistance and pellet density are not reported.
rendered page 5 / article p.2185 · Conclusions · Figure 3c-d · Linked to 3 structured results
The supplied article and SI do not report gas-sorption porosity metrics for Bi-DSBDC-DMA.
Caveat: This is an absence-of-reporting note based on the supplied main text and SI; no external documents were fetched.
rendered page 2 · Methods · Linked to 1 structured result
Bi-DSBDC-DMA is a layered coordination polymer in which two-dimensional covalent Bi-DSBDC networks alternate with dimethylamine/dimethylammonium ion layers.
Caveat: The text alternates between dimethylamine, dimethylammonium, DMA, DMA+ and HDMA+ wording; the extracted structure notes preserve this ambiguity.
rendered page 1 / article p.2181 · Abstract · Figure 1; Table S1 · Linked to 7 structured results
The authors attribute the comparatively high conductivity to continuous one-dimensional Bi-O chains, S-Bi-S bridged aromatic chains and dense two-dimensional anions with strong covalent bonding.
Caveat: This is a mechanistic interpretation; the paper does not provide transport modelling or directional single-crystal conductivity.
rendered page 2 / article p.2182 · Results and discussion · Figure 3a-b · Linked to 4 structured results
Lithium storage is proposed to involve redox of both bismuth and organic ligands, with Bi migrating/redistributing and DSBDC charged states participating in reversible later cycles.
Caveat: The authors state dimethylammonium cations could not be traced with enough evidence; some mechanistic assignments are proposed rather than directly proven.
rendered page 5 / article p.2185 · Results and discussion; Conclusions · Figures 5, S9-S11 · Linked to 5 structured results
The conductivity increases with temperature, consistent with semiconducting behaviour.
Caveat: Only plotted conductivity values are available; no Arrhenius fit or activation energy is reported.
rendered page 2 / article p.2182 · Results and discussion · Figure 3d · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Bi-DSBDC-DMA | [Bi(C8H2O4S2)(C2H8N)]n; SI elemental analysis formula Bi(C8H2O4S2)(C2H8N)(H2O)1.2; crystal empirical formula C40H40Bi4N4O16S8Bi3+ centres coordinated by sulfur and oxygen donors; Bi-O linkages form one-dimensional Bi-O chains that extend into a two-dimensional bismuth-organic network · DSBDC/DMBDC carboxyl-thiol ligand, described as 2,5-disulfur-1,4-dicarboxylate / 2,5-dimercaptoterephthalic acid derived ligand; dimethylamine/dimethylammonium cations from DMF decomposition reside between layers | 2D · PristineSingle-crystal XRD assigns an orthorhombic layered molecular structure, space group Pcca, with two-dimensional Bi-DSBDC polyanion networks alternating with dimethylamine ion layers. | rendered page 1 / article p.2181 · Abstract |
| Bi-DSBDC-DMA/carbon black/CMC composite electrode | 60 wt% Bi-DSBDC-DMA, 30 wt% carbon black, 10 wt% CMCBi-DSBDC-DMA framework component contains Bi3+ centres · DSBDC/DMBDC framework ligand plus CMC binder in electrode composite | unknown · CompositeComposite slurry electrode on Cu foil used for Li-ion half-cell testing; PXRD indicates Bi-DSBDC-DMA retains crystallinity after electrode preparation. | rendered page 2 · Electrode preparations and testing |
| conducting carbon/CMC control electrode | conducting carbon/CMC (3/1 in mass)CMC binder | 0D · CompositeNon-framework conducting carbon/CMC electrode used to estimate the contribution of conducting carbon to Li-ion capacity. | rendered page 5 · Supplementary figures · Figure S5 |
| gas-phase DSBDC charged-state DFT models | DSBDC2-, DSBDC3-, DSBDC4-, DSBDC5- and related charged statesDSBDC organic molecule/anion models | 0D · Model SystemGas-phase DFT models optimized at B3LYP/6-31+G(d,p) to analyse possible redox states of the organic component. | rendered page 2 · Characterization · Figure S10 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| as-made Bi-DSBDC-DMA yellow crystalline solidresearch_0178__mat__mat_bi_dsbdc_dma | Powder · Target Sample · Pristine Framework | Solvothermal product isolated as crystalline yellow solids/yellow powder, filtered, washed with DMF, ethanol and THF, and dried in air. | rendered page 2 · Synthesis of Bi-DSBDC-DMA |
| Bi-DSBDC-DMA composite electroderesearch_0178__mat__mat_bi_dsbdc_dma_electrode | Electrode · Composite Sample · Composite | MOF solid, carbon black and CMC in a 6:3:1 mass ratio mixed with water by ball milling, pasted on Cu foil and dried at 120 C under vacuum overnight.Cu foil; 2032 coin cell with Li metal counter/pseudo-reference electrode | rendered page 2 · Electrode preparations and testing |
| pressed Bi-DSBDC-DMA pellet for conductivityresearch_0178__mat__mat_bi_dsbdc_dma | Pellet · Target Sample · Pristine Framework | Pristine powder pressed into a pellet for two-probe conductivity measurements at different temperatures.between two stainless steel rods in a homemade holder · 0.18 mm | rendered page 2 / article p.2182 · Results and discussion · Figure 3d |
| single crystal of Bi-DSBDC-DMAresearch_0178__mat__mat_bi_dsbdc_dma | Single Crystal · Target Sample · Pristine Framework | Selected crystal mounted for single-crystal X-ray diffraction at 100 K. | rendered page 2 · Characterization · Table S1 |
| Bi-DSBDC-DMA after vacuum drying at 120 Cresearch_0178__mat__mat_bi_dsbdc_dma | Powder · Target Sample · Pristine Framework | Dried under vacuum at 120 C; crystallinity reduced but diffraction peak positions remain essentially unchanged. | rendered page 2 / article p.2182 · Results and discussion · Figure 2c |
| conducting carbon/CMC control electroderesearch_0178__mat__mat_carbon_cmc_control | Electrode · Composite Sample · Composite | Conducting carbon/CMC 3/1 electrode used for supplementary rate-capability comparison.electrode substrate not explicitly stated for the control figure | rendered page 5 · Supplementary figures · Figure S5 |
| DSBDC charged-state gas-phase DFT model setresearch_0178__mat__mat_dsbdc_dft_model | Model · Model System · Model | Gas-phase molecular models optimized with Gaussian at B3LYP/6-31+G(d,p). | rendered page 2 · Characterization · Figure S10 |