Wang C., He Y., Xie J. et al. · Chemical Engineering Journal · 2025 · 167834
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.
Ni3Co1-DPTTZ-MOF delivers higher capacitance than monometallic controls and enables an ASC device with high energy density and >80% cycling retention.
Caveat: Device comparison tables and higher-loading device data are partly dependent on missing SI.
1 · Abstract · Linked to 5 structured results
During cycling, weaker Ni/Co-O bonds may be partially cleaved by hydroxide ions while Ni/Co-N bonds on the (022) crystal plane remain intact.
Caveat: Most post-cycle structural evidence is in missing SI figures S20-S22.
9 · 3.2 · Fig. 7a; Fig. S22 · Linked to 3 structured results
Bimetallic Ni/Co incorporation, especially Ni3Co1 composition, increases electrical conductivity relative to monometallic Ni-DPTTZ-MOF and Co-DPTTZ-MOF.
Caveat: Electrical measurement geometry and method details are not provided in the main text and likely reside in missing SI.
5 · 3.2 · Fig. 2c · Linked to 3 structured results
The 3D two-fold interpenetrated framework provides interconnected channels and pi-pi stacked DPTTZ motifs that support electrolyte diffusion and electron transfer.
Caveat: Porosity surface-area measurements were not found in the supplied main text; SI may contain additional pore evidence.
4 · 3.1 · Fig. 3 · Linked to 3 structured results
Ni3Co1-DPTTZ-MOF charge storage involves both diffusion-controlled and surface-capacitance-controlled processes.
8 · 3.2 · Fig. 6 · Linked to 4 structured results
DFT indicates that heterobimetallic NiCo-DPTTZ-MOF narrows the band gap through Ni/Co synergistic effects and enhanced metal-to-ligand charge transfer.
Caveat: Computational parameters and full PDOS tables are in missing SI.
6 · 3.2 · Fig. 7c-e; Table S3 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-DPTTZ-MOF | [Co(DPTTZ)]n.DMF; BDC-containing framework described in this workCo2+ binuclear nodes coordinated by BDC oxygen atoms · DPTTZ and terephthalic acid (BDC) | 3D · Pristinetwo-fold interpenetrated pillared-layer MOF; Co structure denoted [Co(DPTTZ)]n.DMF, CCDC 1861686 | 3 · 3.1. Microstructure and surface chemical properties · Fig. 3 |
| 2,5-bis(4-pyridyl)thiazolo[5,4-d]thiazole (DPTTZ) | Not specifiednone · DPTTZ | 0D · Unknownlinear planar rigid pi-conjugated thiazolothiazole ligand | 2 · 2.1. Synthesis of 2,5-bis(4-pyridyl)thiazolo[5,4-d]thiazole (DPTTZ) · Fig. 1a |
| Ni1Co1-DPTTZ-MOF | Not specifiedmixed Ni2+/Co2+ nodes, Ni:Co nominal molar ratio 1:1 · DPTTZ and terephthalic acid (BDC) | 3D · Pristinebimetallic NixCoy-DPTTZ-MOF with XRD pattern consistent with monometallic analogues | 6 · 3.2. Electrochemical characterization · Fig. 7c-e |
| Ni1Co3-DPTTZ-MOF | Not specifiedmixed Ni2+/Co2+ nodes, Ni:Co nominal molar ratio 1:3 · DPTTZ and terephthalic acid (BDC) | 3D · Pristinebimetallic NixCoy-DPTTZ-MOF with XRD pattern consistent with monometallic analogues | 3 · 2.3. Synthesis of bimetallic NixCoy-DPTTZ-MOF · Fig. 2a |
| Ni3Co1-DPTTZ-MOF//AC asymmetric supercapacitor | Not specifiedNi3Co1-DPTTZ-MOF cathode plus activated carbon anode · DPTTZ and BDC in MOF component | unknown · Compositeapplication device using pristine Ni3Co1-DPTTZ-MOF positive electrode and activated carbon negative electrode | 9 · 3.2. Electrochemical characterization · Fig. 8 |
| Ni3Co1-DPTTZ-MOF | Not specifiedmixed Ni2+/Co2+ nodes, Ni:Co nominal molar ratio 3:1 · DPTTZ and terephthalic acid (BDC) | 3D · Pristinebimetallic 3D two-fold interpenetrated pillared-layer MOF with interconnected channels | 1 · Abstract |
| Ni-DPTTZ-MOF | Not specifiedNi2+ nodes · DPTTZ and terephthalic acid (BDC) | 3D · Pristinesimulated structure closely resembles Co-DPTTZ-MOF; 3D two-fold interpenetrated pillared-layer framework | 4 · 3.1. Microstructure and surface chemical properties · Fig. 3 and Fig. S4a |
| NiCo-DPTTZ-MOF | Not specifiedmixed Ni/Co nodes, ratio not defined · DPTTZ and terephthalic acid (BDC) | 3D · Pristinebimetallic MOF without defined ratio; detailed refinement on bimetallic NiCo-DPTTZ-MOF | 3 · 2.3. Synthesis of bimetallic NixCoy-DPTTZ-MOF |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Co-DPTTZ-MOF DFT modelresearch_0393__mat__mat_co_dpttz_mof | Model · Model System · Model | DFT geometry optimisation and static electronic-structure model | 6 · 3.2. Electrochemical characterization · Fig. 7e and Fig. S14 |
| Co-DPTTZ-MOF nickel-foam working electroderesearch_0393__mat__mat_co_dpttz_mof | Electrode · Pristine Control · Composite | active MOF/PVDF/Ketjen Black slurry cast on nickel foam, dried and pressed1 cm x 2 cm nickel foam | 3 · 2.4 |
| Co-DPTTZ-MOF powder/crystalsresearch_0393__mat__mat_co_dpttz_mof | Powder · Pristine Control · Pristine Framework | reddish-brown crystals, centrifuged, washed with water and DMF, vacuum dried at 80 C for 12 h | 2 · 2.2 |
| DPTTZ bright yellow solidresearch_0393__mat__mat_dpttz_ligand | Powder · Unknown · Unknown | isolated by filtration, washed with deionised water, dried under reduced pressure | 2 · 2.1 |
| Ni1Co1-DPTTZ-MOF nickel-foam working electroderesearch_0393__mat__mat_ni1co1_dpttz_mof | Electrode · Target Sample · Composite | active MOF/PVDF/Ketjen Black slurry cast on nickel foam, dried and pressed1 cm x 2 cm nickel foam | 3 · 2.4 |
| Ni1Co1-DPTTZ-MOF powderresearch_0393__mat__mat_ni1co1_dpttz_mof | Powder · Target Sample · Mixed Metal | hydrothermal product from Ni/Co nitrate, BDC and DPTTZ | 3 · 2.3 |
| Ni1Co3-DPTTZ-MOF nickel-foam working electroderesearch_0393__mat__mat_ni1co3_dpttz_mof | Electrode · Target Sample · Composite | active MOF/PVDF/Ketjen Black slurry cast on nickel foam, dried and pressed1 cm x 2 cm nickel foam | 3 · 2.4 |
| Ni1Co3-DPTTZ-MOF powderresearch_0393__mat__mat_ni1co3_dpttz_mof | Powder · Target Sample · Mixed Metal | hydrothermal product from Ni/Co nitrate, BDC and DPTTZ | 3 · 2.3 |
| Ni3Co1-DPTTZ-MOF//AC ASC deviceresearch_0393__mat__mat_ni3co1_ac_asc_device | Electrode · Composite Sample · Composite | Ni3Co1-DPTTZ-MOF positive electrode and activated carbon negative electrode in 3.0 M KOHtwo-electrode device with glass microfiber separator | 3 · 2.5 · Fig. 8 |
| Ni3Co1-DPTTZ-MOF nickel-foam working electroderesearch_0393__mat__mat_ni3co1_dpttz_mof | Electrode · Target Sample · Composite | active MOF/PVDF/Ketjen Black slurry cast on nickel foam, vacuum dried at 60 C overnight and pressed at 10 MPa for 5 s1 cm x 2 cm nickel foam | 3 · 2.4 |
| Ni3Co1-DPTTZ-MOF powderresearch_0393__mat__mat_ni3co1_dpttz_mof | Powder · Target Sample · Mixed Metal | hydrothermal product from Ni/Co nitrate, BDC and DPTTZ | 3 · 2.3 |
| Ni-DPTTZ-MOF DFT modelresearch_0393__mat__mat_ni_dpttz_mof | Model · Model System · Model | DFT geometry optimisation and static electronic-structure model | 6 · 3.2. Electrochemical characterization · Fig. 7d and Fig. S14 |
| Ni-DPTTZ-MOF nickel-foam working electroderesearch_0393__mat__mat_ni_dpttz_mof | Electrode · Pristine Control · Composite | active MOF/PVDF/Ketjen Black slurry cast on nickel foam, dried and pressed1 cm x 2 cm nickel foam | 3 · 2.4 |
| Ni-DPTTZ-MOF powder/crystalsresearch_0393__mat__mat_ni_dpttz_mof | Powder · Pristine Control · Pristine Framework | prepared by same procedure as Co-DPTTZ-MOF using Ni(NO3)2.6H2O | 2 · 2.2 |
| NiCo-DPTTZ-MOF DFT model (Ni:Co = 1:1)research_0393__mat__mat_nico_dpttz_mof_unspecified | Model · Model System · Model | DFT geometry optimisation and static electronic-structure model | 6 · 3.2. Electrochemical characterization · Fig. 7c and Fig. S14 |
| NiCo-DPTTZ-MOF powder, ratio not definedresearch_0393__mat__mat_nico_dpttz_mof_unspecified | Powder · Paper Level Unspecified · Mixed Metal | bimetallic MOF without defined ratio | 3 · 2.3 |