Hang X., Zhao J., Xue Y. et al. · Journal of Colloid and Interface Science · 2022 · 389-396
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 optimised Co/Ni-MOF-2:1 electrode and Co/Ni-MOF-2:1//AC ASC device show improved capacitance, rate capability and cycling stability for supercapacitors.
Caveat: Application results are from composite electrodes with acetylene black/PTFE and nickel foam, not neat MOF pellets.
p006 / article p.394 · 3. Conclusions · Linked to 5 structured results
After cycling, Co/Ni-MOF-2:1 partly retains morphology but coexists with Ni(OH)2 and Co(OH)2, indicating electrode reconstruction during operation.
Caveat: Post-cycling products are identified qualitatively from SI PXRD/XPS descriptions; detailed phase fractions are not reported.
p004-p005 / article pp.392-393 · 2.2 Supercapacitor · Figures S14-S16 · Linked to 2 structured results
Partial Co2+ substitution in Ni-MOF improves intrinsic reactivity and electrical conductivity, contributing to higher supercapacitor performance.
Caveat: No direct electronic conductivity measurement or fitted resistance value is reported in the accessible text; support is indirect from EIS/rate behaviour and author interpretation.
p001-p002 / article pp.389-390 · Abstract and Introduction · Linked to 3 structured results
Co/Ni-MOF-2:1 stores charge through mixed capacitive and diffusion-controlled processes, with capacitive contribution increasing at higher scan rates.
Caveat: Kinetic decomposition is based on standard CV power-law analysis of electrode composites containing conductive carbon and binder. SI Figure S24 capacitive-contribution panels were visually checked but not assigned to sample-specific rows because panel labels are absent and the caption conflicts with the labelled main Fig. 5d target values.
p005-p006 / article pp.393-394 · 2.2 Supercapacitor · Fig. 5 · Linked to 8 structured results
The authors propose that smaller Co2+ partially replacing Ni2+ creates Ni2+ vacancies/free holes, enhancing electrical conductivity.
Caveat: Mechanistic interpretation is cited to prior literature and not directly quantified by carrier-density or conductivity measurements in this paper.
p004 / article p.392 · 2.2 Supercapacitor · Linked to 2 structured results
Changing morphology from Ni-MOF microrods to Co/Ni-MOF-2:1 nanowires is proposed to facilitate electron/electrolyte transport and redox kinetics.
Caveat: Morphology and EIS support the claim qualitatively; no isolated morphology-controlled transport experiment is reported.
p002 / article p.390 · 2.1 Synthesis and structural characterization · Fig. 2 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-MOF | {Co(TDC)(H2O)1.5}nOctahedral Co2+ dimers arranged in layers · TDC/tdc2- = thiophenedicarboxylate | unknown · PristineCo-MOF simulated structure has 1D chains of octahedral Co2+ dimers arranged parallel to (b,c) planes and connected by tdc2- anions. | p002 / article p.390 · 2.1 Synthesis and structural characterization · Figure S2; Figure S3 |
| Co/Ni-MOF-1:1 | CoxNi3-x(OH)2(tdc)2(H2O)4; exact x not reportedMixed Co2+/Ni2+ nodes in Ni-MOF-type framework · tdc2- = 2,5-thiophenedicarboxylate | 3D · PristinePartially Co-substituted Ni-MOF; PXRD and FTIR reported as similar to Ni-MOF series. | p002 / article p.390 · 2.1 Synthesis and structural characterization · Figure S1; Table S1 |
| Co/Ni-MOF-1:2 | CoxNi3-x(OH)2(tdc)2(H2O)4; exact x not reportedMixed Co2+/Ni2+ nodes in Ni-MOF-type framework · tdc2- = 2,5-thiophenedicarboxylate | 3D · PristinePartially Co-substituted Ni-MOF; PXRD and FTIR reported as similar to Ni-MOF series. | p002 / article p.390 · 2.1 Synthesis and structural characterization · Figure S1; Table S1 |
| Co/Ni-MOF-2:1 | CoxNi3-x(OH)2(tdc)2(H2O)4; exact x not reportedMixed Co2+/Ni2+ nodes in Ni-MOF-type framework · tdc2- = 2,5-thiophenedicarboxylate | 3D · PristineOptimised bimetallic Co/Ni-MOF retaining Ni-MOF-type PXRD/FTIR features but with nanowire morphology and weak crystalline/amorphous SAED response. | p001 / article p.389 · Abstract |
| Co/Ni-MOF-2:1//AC asymmetric supercapacitor | Co/Ni-MOF-2:1 positive electrode paired with activated carbon negative electrodeMixed Co2+/Ni2+ nodes in positive MOF electrode · tdc2- = 2,5-thiophenedicarboxylate in positive MOF electrode | unknown · CompositeTwo-electrode asymmetric supercapacitor device, not a single MOF framework. | p006 / article p.394 · 2.2 Supercapacitor · Fig. 6 |
| Co/Ni-MOF-3:1 | CoxNi3-x(OH)2(tdc)2(H2O)4; exact x not reportedMixed Co2+/Ni2+ nodes in Ni-MOF-type framework · tdc2- = 2,5-thiophenedicarboxylate | 3D · PristinePartially Co-substituted Ni-MOF; PXRD and FTIR reported as similar to Ni-MOF series. | p002 / article p.390 · 2.1 Synthesis and structural characterization · Figure S1; Table S1 |
| Co/Ni-MOF-5:1 | Co/Ni thiophenedicarboxylate material; exact formula not reportedCo-rich Co/Ni nodes; Co-MOF-type structure observed when CoCl2.6H2O:NiCl2.6H2O >= 5:1 · tdc2- = 2,5-thiophenedicarboxylate | unknown · PristineCo-rich synthesis forms another structure resembling simulated Co-MOF, rather than Ni-MOF-type framework. | p002 / article p.390 · 2.1 Synthesis and structural characterization · Figure S2 |
| Ni-MOF | {Ni3(OH)2(tdc)2(H2O)4}nNi2+ hydroxythiophenedicarboxylate chains; nickel octahedral [Ni1O6]2[Ni2O6] chains · tdc2- = 2,5-thiophenedicarboxylate | 3D · PristinePXRD matched simulated {Ni3(OH)2(tdc)2(H2O)4}n; chains parallel to a axis pillared by bis(bidentate) tdc2- ligands to form a 3D framework. | p002 / article p.390 · 2.1 Synthesis and structural characterization · Fig. 1a,b |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Co-MOF powderresearch_0364__mat__co_mof | Powder · Pristine Control · Pristine Framework | Solvothermal product prepared under Ni-MOF conditions with only CoCl2.6H2O as metal source. | SI text p001 · Experimental Section - Synthesis of Co-MOF |
| Co/Ni-MOF-1:1 powderresearch_0364__mat__coni_mof_1_1 | Powder · Pristine Control · Mixed Metal | Solvothermal product prepared using CoCl2.6H2O and NiCl2.6H2O at nominal Co:Ni = 1:1. | SI text p001 · Experimental Section - Syntheses of Co/Ni-MOF-x:y |
| Co/Ni-MOF-1:1 three-electrode working electroderesearch_0364__mat__coni_mof_1_1 | Electrode · Pristine Control · Composite | Active MOF, acetylene black and PTFE mixed 80:15:5, coated on nickel foam and pressed at 10 MPa.nickel foam, approximately 1 cm2 · pressed thin foil; thickness not reported | SI text p001 · Experimental Section - Electrochemical measurements |
| Co/Ni-MOF-1:2 powderresearch_0364__mat__coni_mof_1_2 | Powder · Pristine Control · Mixed Metal | Solvothermal product prepared using CoCl2.6H2O and NiCl2.6H2O at nominal Co:Ni = 1:2. | SI text p001 · Experimental Section - Syntheses of Co/Ni-MOF-x:y |
| Co/Ni-MOF-1:2 three-electrode working electroderesearch_0364__mat__coni_mof_1_2 | Electrode · Pristine Control · Composite | Active MOF, acetylene black and PTFE mixed 80:15:5, coated on nickel foam and pressed at 10 MPa.nickel foam, approximately 1 cm2 · pressed thin foil; thickness not reported | SI text p001 · Experimental Section - Electrochemical measurements |
| Co/Ni-MOF-2:1//AC ASC deviceresearch_0364__mat__coni_mof_2_1_ac_device | Electrode · Composite Sample · Composite | Two-electrode device using Co/Ni-MOF-2:1 positive electrode and activated carbon negative electrode in 3.0 M KOH; positive:negative active mass ratio 1:2.8.nickel foam current collectors · pressed thin foil electrodes; thickness not reported | SI text p003 · Figure S25 / ASC device details · Figure S25 |
| Co/Ni-MOF-2:1 powderresearch_0364__mat__coni_mof_2_1 | Powder · Target Sample · Mixed Metal | Solvothermal product prepared using CoCl2.6H2O and NiCl2.6H2O at nominal Co:Ni = 2:1. | p001 / article p.389 · Abstract |
| Co/Ni-MOF-2:1 three-electrode working electroderesearch_0364__mat__coni_mof_2_1 | Electrode · Target Sample · Composite | Active MOF, acetylene black and PTFE mixed 80:15:5, coated on nickel foam and pressed at 10 MPa.nickel foam, approximately 1 cm2 · pressed thin foil; thickness not reported | SI text p001 · Experimental Section - Electrochemical measurements |
| Co/Ni-MOF-3:1 powderresearch_0364__mat__coni_mof_3_1 | Powder · Pristine Control · Mixed Metal | Solvothermal product prepared using CoCl2.6H2O and NiCl2.6H2O at nominal Co:Ni = 3:1. | SI text p001 · Experimental Section - Syntheses of Co/Ni-MOF-x:y |
| Co/Ni-MOF-3:1 three-electrode working electroderesearch_0364__mat__coni_mof_3_1 | Electrode · Pristine Control · Composite | Active MOF, acetylene black and PTFE mixed 80:15:5, coated on nickel foam and pressed at 10 MPa.nickel foam, approximately 1 cm2 · pressed thin foil; thickness not reported | SI text p001 · Experimental Section - Electrochemical measurements |
| Co/Ni-MOF-5:1 powderresearch_0364__mat__coni_mof_5_1 | Powder · Pristine Control · Mixed Metal | Co-rich solvothermal product prepared at nominal Co:Ni = 5:1. | SI text p001 · Experimental Section - Syntheses of Co/Ni-MOF-x:y · Figure S2 |
| Ni-MOF light-green powderresearch_0364__mat__ni_mof | Powder · Pristine Control · Pristine Framework | Filtered, washed with water and ethanol, dried at 50 C for 12 h. | SI text p001 · Experimental Section - Synthesis of Ni-MOF |
| Ni-MOF three-electrode working electroderesearch_0364__mat__ni_mof | Electrode · Pristine Control · Composite | Active MOF, acetylene black and PTFE mixed 80:15:5, coated on nickel foam and pressed at 10 MPa.nickel foam, approximately 1 cm2 · pressed thin foil; thickness not reported | SI text p001 · Experimental Section - Electrochemical measurements |