Yan Y., Lin X., Zhang W. et al. · Journal of Electroanalytical Chemistry · 2023 · 117096
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.
Non-conductive Ni-mba-Na and Ni-mba-K can function as lithium-ion battery electrode materials because they contain electrochemically active sulfur-containing hexanuclear Ni(II) cluster subunits.
Caveat: Electrochemical tests were on composite electrodes containing acetylene black and PVDF, not on binder-free pristine MOF electrodes.
3 · 3.1. Structural characterization · Linked to 6 structured results
The authors suggest that designing penetrating channels would improve Li+ and charge transport, reduce discharge time and improve rate performance.
Caveat: This is a design recommendation rather than a directly tested structure variant in the paper.
5 · 4. Conclusions · Linked to 4 structured results
Ni-mba-K has lower Rct and Warburg diffusion resistance than Ni-mba-Na, attributed to a higher proportion of mesoporous/macroporous hierarchical porous structure.
Caveat: Porosity is described qualitatively and the readable text only gives a shared BET upper bound of <10 m2 g-1.
3 · 3.2. Lithium-ion battery performance · Table S2 · Linked to 5 structured results
The two MOFs have very low BET surface areas, yet still deliver high lithium-storage capacities, supporting the authors' emphasis on active Ni/S/O/Cl sites rather than high surface area alone.
Caveat: BET values are read from figure labels; lithium tests use composite electrodes with conductive carbon.
5 · 3.2 Lithium-ion battery performance · Linked to 4 structured results
Ni-mba-Na is reported to have better electrochemical performance than Ni-mba-K because its higher conductivity gives faster charging and reversible discharging.
Caveat: The conductivity value for Ni-mba-Na is internally inconsistent between the abstract and results text by one order of magnitude.
4 · 3.2. Lithium-ion battery performance · Linked to 6 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Ni-mba-K | [Ni8(mba)6(Cl)2K(OH)3]nhexanuclear Ni(II) cluster subunits; K+ pillars between layers · 2-mercaptobenzoic acid-derived mba ligand | 3D · PristinePillar-layered MOF analogous to Ni-mba-Na, supported by K+ ions between layers. | 2 · 1. Introduction |
| Ni-mba-K composite electrode | Ni-mba-K 70 wt%; acetylene black 10 wt%; PVDF 20 wt%Ni-mba-K active material · Ni-mba-K mba framework plus PVDF binder | unknown · CompositeComposite slurry electrode coated on copper for CR2032 lithium-ion battery testing. | 2 · 2.5. Preparation, assembly, and electrochemical measurements of electrode materials for lithium-ion batteries |
| Ni-mba-Na | [Ni8(mba)6(Cl)2Na(OH)3]nhexanuclear triangle-star-like [Ni6Cl2]10+ cluster; two mononuclear [Ni2(OH)3]+ nodes; mononuclear Na+ node · 2-mercaptobenzoic acid-derived mba ligand | 3D · PristinePillar-layered MOF formed by Na+ connecting wavy 2D layers through mba carboxyl oxygen; layers contain hexagonal prism-like graphite-like units. | 1 · Abstract |
| Ni-mba-Na composite electrode | Ni-mba-Na 70 wt%; acetylene black 10 wt%; PVDF 20 wt%Ni-mba-Na active material · Ni-mba-Na mba framework plus PVDF binder | unknown · CompositeComposite slurry electrode coated on copper for CR2032 lithium-ion battery testing. | 2 · 2.5. Preparation, assembly, and electrochemical measurements of electrode materials for lithium-ion batteries |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Ni-mba-K lithium-ion battery working electroderesearch_0865__mat__mat_ni_mba_k_electrode | Electrode · Composite Sample · Composite | slurry-coated, dried 12 h at 90 deg C, cut into 12 mm circular sheet, assembled in CR2032 cell under argoncopper sheet | 2 · 2.5. Preparation, assembly, and electrochemical measurements of electrode materials for lithium-ion batteries |
| Ni-mba-K conductivity pelletresearch_0865__mat__mat_ni_mba_k | Pellet · Target Sample · Pristine Framework | cold isostatic pressing; gold contacts evaporated20-40 um | 2 · 2.4. Conductivity measurements |
| Ni-mba-K productresearch_0865__mat__mat_ni_mba_k | Powder · Target Sample · Pristine Framework | prepared by replacing NaOH with equimolar KOH in the Ni-mba-Na synthesis | 2 · 2.3. Synthesis of Ni MOFs |
| Ni-mba-Na lithium-ion battery working electroderesearch_0865__mat__mat_ni_mba_na_electrode | Electrode · Composite Sample · Composite | slurry-coated, dried 12 h at 90 deg C, cut into 12 mm circular sheet, assembled in CR2032 cell under argoncopper sheet | 2 · 2.5. Preparation, assembly, and electrochemical measurements of electrode materials for lithium-ion batteries |
| Ni-mba-Na conductivity pelletresearch_0865__mat__mat_ni_mba_na | Pellet · Target Sample · Pristine Framework | cold isostatic pressing; gold contacts evaporated20-40 um | 2 · 2.4. Conductivity measurements |
| Ni-mba-Na black fibrous productresearch_0865__mat__mat_ni_mba_na | Powder · Target Sample · Pristine Framework | washed with deionized water, ethanol, and dilute hydrochloric acid; dried at 90 deg C for 12 h | 2 · 2.3. Synthesis of Ni MOFs |
| Ni-mba-Na sodium-storage composite electroderesearch_0865__mat__mat_ni_mba_na_electrode | Electrode · Composite Sample · Composite | sodium-storage test shown in SI Figure S5; full Na-cell assembly details not available in readable SI textnot specified in SI figure; likely electrode current collector | S3 · Supporting Information · Figure S5 |