Lin X., Lai S., Fang G. et al. · Inorganic Chemistry · 2022 · 17278-17288
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.
Penetrating channels with many sulfur/oxygen lone-pair sites and coordination hydroxyl redox sites are proposed as a design strategy for higher power and capacitance in MOF electrodes.
Caveat: This is a design recommendation extrapolated from two materials.
main p.9 (journal p.17286) · 4. Conclusions · Linked to 4 structured results
Even though Ni-mba-Na and Ni-mba-K are nonconductive/insulating MOFs, they can function as supercapacitor electrode materials when they contain electrochemically active subunits.
Caveat: The materials are explicitly not conductive MOFs; application relevance is peripheral to the conductive-MOF database.
main p.8 (journal p.17285) · 4. Conclusions · Linked to 6 structured results
The MOFs are not generally stable in all alkaline environments: saturated ammonia decomposes them to H2mba and Ni(OH)2, even though electrochemical cycling in 6 M KOH is stable under electric field.
Caveat: The paper proposes reversible electrochemical reactions prevent alkaline hydrolysis under electric fields.
main p.4 (journal p.17281) · 3.1. Structural Characterization · Figures S4-S5 · Linked to 3 structured results
Hexanuclear Ni(II) cluster subunits containing sulfhydryl groups and [Ni2(OH)3]+ sites are proposed to trigger redox activity and pseudocapacitance under electric fields.
Caveat: Mechanism is proposed from structure/performance correlations and schematic redox equations, not directly time-resolved spectroscopy.
main p.6 and p.8 (journal p.17283, 17285) · 3.2; 4. Conclusions · Figure 5 · Linked to 5 structured results
The larger K+ support pillar is argued to enlarge interlayer space, reduce ion migration resistance, and give Ni-mba-K//NDC lower Rs/Rct and higher specific energy than Ni-mba-Na//NDC.
Caveat: Causal assignment is inferred from K+ radius and device electrochemistry; no direct in situ transport map is provided.
main p.8 (journal p.17285) · 3.2. Supercapacitor Performance · Figures 6-7 · Linked to 6 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| nitrogen-doped porous carbon (NDC) | carbonaceous material; no framework formula reportednot applicable · derived from bptp precursor; no MOF framework retained | unknown · DerivedNitrogen-doped porous carbon used as negative electrode material in asymmetric supercapacitors. | main p.2 (journal p.17279) · 2.4. Synthesis of Nitrogen-Doped Porous Carbon (NDC) |
| Ni-mba-K | [Ni8(mba)6(Cl)2K(OH-)3]nHexanuclear triangle-star-like [Ni6Cl2]10+ clusters, [Ni2(OH)3]+ nodes, and K+ pillar/support nodes · 2-mercaptobenzoate (mba) from 2-mercaptobenzoic acid (H2mba) | 3D · PristinePillar-layered 3D framework analogous to Ni-mba-Na but supported by K+ between layers. | main p.1 (journal p.17278) · Abstract |
| Ni-mba-Na | [Ni8(mba)6(Cl)2Na(OH-)3]nHexanuclear triangle-star-like [Ni6Cl2]10+ clusters, [Ni2(OH)3]+ nodes, and Na+ pillar/support nodes · 2-mercaptobenzoate (mba) from 2-mercaptobenzoic acid (H2mba) | 3D · PristinePillar-layered covalent 3D network with hexagonal prism-like layered motifs and cross-shielded interlayer channels. | main p.1 (journal p.17278) · Abstract |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Ni-mba-K//NDC asymmetric supercapacitorresearch_0825__mat__ni_mba_k | Electrode · Composite Sample · Composite | CR2035 ASC assembled with Ni-mba-K positive electrode, NDC negative electrode, cellulose cloth diaphragm and 6 M KOH electrolyte.CR2035 button battery | main p.2 (journal p.17279) · 2.7. Electrochemical Measurements |
| Ni-mba-Na//NDC asymmetric supercapacitorresearch_0825__mat__ni_mba_na | Electrode · Composite Sample · Composite | CR2035 ASC assembled with Ni-mba-Na positive electrode, NDC negative electrode, cellulose cloth diaphragm and 6 M KOH electrolyte.CR2035 button battery | main p.2 (journal p.17279) · 2.7. Electrochemical Measurements |
| NDC negative electroderesearch_0825__mat__ndc | Electrode · Composite Component · Composite | 70 wt% NDC, 20 wt% acetylene black and 10 wt% PTFE mixed in ethanol; slurry coated on nickel foam and dried for 12 h at 60 deg C.nickel foam/current collector not further specified | main p.3 (journal p.17280) · 2.7. Electrochemical Measurements |
| NDC powderresearch_0825__mat__ndc | Powder · Composite Component · Derived Carbon | Carbonised at 700 deg C for 2 h under N2; acid/water/ethanol washed and dried at 80 deg C. | main p.2 (journal p.17279) · 2.4. Synthesis of Nitrogen-Doped Porous Carbon (NDC) |
| as-synthesised Ni-mba-K productresearch_0825__mat__ni_mba_k | Powder · Target Sample · Pristine Framework | Prepared by replacing NaOH with equimolar KOH in the Ni-mba-Na synthesis; washed and dried analogously. | main p.2 (journal p.17279) · 2.3. Synthesis of Ni MOFs |
| Ni-mba-K conductivity pelletresearch_0825__mat__ni_mba_k | Pellet · Target Sample · Pristine Framework | Pellet made by cold isostatic pressing; gold contacts evaporated for four-contact in-plane conductivity measurements under vacuum.gold contacts · 20-40 um | main p.2 (journal p.17279) · 2.6. Conductivity Measurements |
| Ni-mba-K nickel-foam working electroderesearch_0825__mat__ni_mba_k | Electrode · Target Sample · Composite | 80 wt% active Ni MOF, 10 wt% acetylene black and 10 wt% PTFE mixed in ethanol, coated on nickel foam, dried 12 h at 60 deg C.1 x 1 cm2 nickel foam · active material loading approximately 2.5 mg cm-2 | main p.2 (journal p.17279) · 2.7. Electrochemical Measurements |
| as-synthesised Ni-mba-Na black fibrous productresearch_0825__mat__ni_mba_na | Powder · Target Sample · Pristine Framework | Solvothermal/autoclave product washed with deionised water, anhydrous ethanol and dilute HCl, then dried at 90 deg C for 12 h. | main p.2 (journal p.17279) · 2.3. Synthesis of Ni MOFs |
| Ni-mba-Na conductivity pelletresearch_0825__mat__ni_mba_na | Pellet · Target Sample · Pristine Framework | Pellet made by cold isostatic pressing; gold contacts evaporated for four-contact in-plane conductivity measurements under vacuum.gold contacts · 20-40 um | main p.2 (journal p.17279) · 2.6. Conductivity Measurements |
| Ni-mba-Na nickel-foam working electroderesearch_0825__mat__ni_mba_na | Electrode · Target Sample · Composite | 80 wt% active Ni MOF, 10 wt% acetylene black and 10 wt% PTFE mixed in ethanol, coated on nickel foam, dried 12 h at 60 deg C.1 x 1 cm2 nickel foam · active material loading approximately 2.5 mg cm-2 | main p.2 (journal p.17279) · 2.7. Electrochemical Measurements |
| acid/base-treated Ni-mba-Na and Ni-mba-K powdersresearch_0825__mat__ni_mba_na | Powder · Paper Level Unspecified · Pristine Framework | As-synthesised samples suspended in saturated NH4OH, saturated KOH or 1 M HCl for 24 h, washed with water and ethanol, then dried at 60 deg C for 24 h. | main p.2 (journal p.17279) · 2.5. Chemical Stability Test |