Wang J., Zhong Q., Xiong Y. et al. · Applied Surface Science · 2019 · 1158-1165
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.
Co2-Ni-MOF is the best electrode among the studied MOFs, delivering 1300 F/g at 1 A/g, 1021 F/g at 10 A/g, and 71% retention after 3000 cycles.
Caveat: Performance is for composite working electrodes in a three-electrode aqueous KOH configuration.
1 · Abstract · Linked to 3 structured results
The Co2-Ni-MOF//AC hybrid supercapacitor reaches 25.92 Wh/kg at 375 W/kg and retains 78.1% capacitance after 6000 cycles.
Caveat: Device assembly details are incomplete in the text.
7 · 3.3 Electrochemical measurements of Co2-Ni-MOF//AC HSC device · Fig. 6c-d · Linked to 3 structured results
Co was successfully doped into Ni-MOF, with smaller Co2+ partially substituting for Ni2+.
Caveat: Bulk composition is not quantified in the provided text; XPS is surface sensitive.
3 · 3.1 Structure and morphology characterization · Fig. 1, Fig. 3, Fig. S4 · Linked to 4 structured results
Increasing Co to 5% destroys the flower-like hierarchical microspheres and reduces surface area and electrochemical performance.
Caveat: The Co5 capacitance values are visual estimates from Fig. 4e; the morphology evidence comes from SI Fig. S2b, whose image body is not available in the provided SI text.
6 · 3.1 Structure and morphology characterization · Fig. S2b · Linked to 3 structured results
The open 3D flower-like Co2-Ni-MOF morphology gives the highest surface area and pore volume, improving electrolyte access and electrochemical performance.
Caveat: The causal link is argued from correlated morphology/porosity/electrochemical data rather than isolated mechanistic controls.
7 · 3.2 Electrochemical measurements of MOF materials · Fig. 4e · Linked to 4 structured results
Low Co doping reduces charge-transfer resistance and is interpreted as improved electrical conductivity through Ni2+/Co2+ synergy and increased free holes.
Caveat: EIS Rct is an electrode/electrolyte interfacial metric for composite electrodes, not a direct intrinsic electronic conductivity measurement of the MOF powder.
7 · 3.2 Electrochemical measurements of MOF materials · Fig. 4f · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Active carbon | Not specified | unknown · UnknownCommercial/unspecified active carbon negative-electrode material for the HSC device. | 7 · 3.3 Electrochemical measurements of Co2-Ni-MOF//AC HSC device · Fig. S6 |
| Co0.5-Ni-MOF | Cox-Ni-MOF, x = 0.5; Co/Ni = 0.5 mol%Ni and Co · 1,4-benzenedicarboxylic acid / terephthalic acid | unknown · PristineCo-doped Ni-based MOF in the Cox-Ni-MOF series; XRD similar to Ni-MOF with higher-angle shift after Co addition. | 2 · 2.1.2 Synthesis of Co-doped Ni-MOFs |
| Co2-Ni-MOF | Cox-Ni-MOF, x = 2; Co/Ni = 2 mol%Ni and Co · 1,4-benzenedicarboxylic acid / terephthalic acid | unknown · PristineCo-doped Ni-based MOF with 3D flower-like hierarchical microspheres; best-performing sample. | 1 · Abstract |
| Co2-Ni-MOF//AC hybrid supercapacitor | Not specifiedNi and Co in positive electrode · 1,4-benzenedicarboxylic acid / terephthalic acid in positive electrode | unknown · CompositeAsymmetric/hybrid supercapacitor device using Co2-Ni-MOF positive electrode and active carbon negative electrode. | 7 · 3.3 Electrochemical measurements of Co2-Ni-MOF//AC HSC device · Fig. 6 |
| Co5-Ni-MOF | Cox-Ni-MOF, x = 5; Co/Ni = 5 mol%Ni and Co · 1,4-benzenedicarboxylic acid / terephthalic acid | unknown · PristineCo-doped Ni-based MOF in the Cox-Ni-MOF series; excess Co partly destroys the flower-like hierarchy. | 5 · 3.1 Structure and morphology characterization · Fig. S2b |
| Ni-MOF | Ni2(OH)2(C8H4O4)Ni · 1,4-benzenedicarboxylic acid / terephthalic acid | unknown · PristineNi-based MOF assigned to Ni2(OH)2(C8H4O4), CCDC no. 985792, with characteristic XRD peaks near 2theta = 8.3 and 17 degrees. | 2 · 3.1 Structure and morphology characterization · Fig. 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Active carbon electroderesearch_0262__mat__mat_ac | Electrode · Composite Component · Composite | Active carbon negative electrode used for HSC charge balance; fabrication details not otherwise specified. | 7 · 3.3 Electrochemical measurements of Co2-Ni-MOF//AC HSC device |
| Co0.5-Ni-MOF working electroderesearch_0262__mat__mat_co0_5_ni_mof | Electrode · Target Sample · Composite | 80 wt% active material, 10 wt% acetylene black, 10 wt% PTFE coated on nickel foam and vacuum dried at 80 deg C.nickel foam, 2.0 cm x 1.0 cm | 2 · 2.3.1 Electrochemical measurements in a three-electrode configuration |
| Co0.5-Ni-MOF powderresearch_0262__mat__mat_co0_5_ni_mof | Powder · Target Sample · Doped | Hydrothermally prepared Co-doped Ni-MOF powder, workup as for Ni-MOF. | 2 · 2.1.2 Synthesis of Co-doped Ni-MOFs |
| Co2-Ni-MOF//AC HSC deviceresearch_0262__mat__mat_co2_ni_mof_ac_hsc | Electrode · Composite Sample · Composite | Hybrid supercapacitor assembled from Co2-Ni-MOF positive electrode and active carbon negative electrode. | 7 · 3.3 Electrochemical measurements of Co2-Ni-MOF//AC HSC device · Fig. 6 |
| Co2-Ni-MOF working electroderesearch_0262__mat__mat_co2_ni_mof | Electrode · Target Sample · Composite | 80 wt% active material, 10 wt% acetylene black, 10 wt% PTFE coated on nickel foam and vacuum dried at 80 deg C.nickel foam, 2.0 cm x 1.0 cm | 2 · 2.3.1 Electrochemical measurements in a three-electrode configuration |
| Co2-Ni-MOF powderresearch_0262__mat__mat_co2_ni_mof | Powder · Target Sample · Doped | Hydrothermally prepared Co-doped Ni-MOF powder, workup as for Ni-MOF. | 3 · 3.1 Structure and morphology characterization · Fig. 2e-h |
| Co5-Ni-MOF working electroderesearch_0262__mat__mat_co5_ni_mof | Electrode · Target Sample · Composite | 80 wt% active material, 10 wt% acetylene black, 10 wt% PTFE coated on nickel foam and vacuum dried at 80 deg C.nickel foam, 2.0 cm x 1.0 cm | 2 · 2.3.1 Electrochemical measurements in a three-electrode configuration |
| Co5-Ni-MOF powderresearch_0262__mat__mat_co5_ni_mof | Powder · Target Sample · Doped | Hydrothermally prepared Co-doped Ni-MOF powder, workup as for Ni-MOF. | 5 · 3.1 Structure and morphology characterization · Fig. S2b |
| Ni-MOF working electroderesearch_0262__mat__mat_ni_mof | Electrode · Pristine Control · Composite | 80 wt% active material, 10 wt% acetylene black, 10 wt% PTFE coated on nickel foam and vacuum dried at 80 deg C.nickel foam, 2.0 cm x 1.0 cm | 2 · 2.3.1 Electrochemical measurements in a three-electrode configuration |
| Ni-MOF powderresearch_0262__mat__mat_ni_mof | Powder · Pristine Control · Pristine Framework | Recovered by centrifugation, rinsed with DMF and ethanol, then vacuum dried at 60 deg C for 12 h. | 2 · 2.1.1 Synthesis of Ni-MOFs |