Yang C., Feng K., Chen J. et al. · Chemical Engineering Journal · 2025 · 165857
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.
DDA-Cu is presented as a bifunctional EC-MOF usable as a cathode material and as an anode-protective film in aqueous zinc-ion batteries.
Caveat: Demonstrated in laboratory coin cells; long-term practical scale-up and raw data files are not available in this extraction.
13-14 · Conclusions · Fig. 10f · Linked to 3 structured results
New XRD peaks after cycling may arise from partial EC-MOF dissolution and formation of interfacial compounds; authors suggest these compounds may be beneficial.
Caveat: This is an inferred explanation in the paper; rendered SI Fig. S12 confirms the referenced XRD context but not raw diffractogram data.
11 · Results and discussion · Fig. S12 · Linked to 1 structured result
The authors caution that too-thick EC-MOF films increase resistance, whereas too-thin films can have uneven coverage, defects and detachment; the three-day film outperformed thinner one- and two-day variants.
Caveat: Thickness optimisation is shown for only a small set of growth times.
11 · Results and discussion · Fig. 9 · Linked to 5 structured results
DDA-Cu film on Zn acts as a hydrophilic, conductive protective layer that reduces charge-transfer resistance, corrosion current and dendritic deposition while extending symmetric-cell lifetime.
Caveat: Some support comes from SI morphology/contact-angle/conductivity figures; key numerical values are reported in the main text and SI captions/pages were verified locally.
7-10 · Results and discussion · Fig. 6-8 · Linked to 4 structured results
DDA-Cu was successfully synthesized as a Cu-coordinated conductive MOF with indexed XRD peaks, Cu-N coordination, Cu2+ XPS features, and homogeneous C/N/O/Cu distribution.
Caveat: No CIF or SI structural file was provided; dimensionality/topology beyond reported planes is not independently verified here.
3-4 · Results and discussion · Fig. 1; Fig. 2 · Linked to 3 structured results
The open DDA-Cu framework, pore size, and low calculated Zn migration barrier are claimed to promote Zn2+ transport and charge-transfer kinetics.
Caveat: BET/pore values are reported in main text and tied to SI Fig. S1; some NEB values are figure-read.
4-8 · Results and discussion · Fig. 4a; Fig. 5; Fig. S1 · Linked to 4 structured results
C=O/C-O and C=N/C-N groups plus Cu2+/Cu+ redox activity are proposed as reversible Zn2+ storage sites in DDA-Cu.
Caveat: Mechanistic assignment relies on ex-situ XPS peak changes and DFT support, not direct operando structural proof.
6 · Results and discussion · Fig. 4c-e · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Bare zinc foil | ZnZn metal | unknown · UnknownBare Zn control anode. | 3 · 2.4 |
| DDA-Cu | Not specifiedCu2+ ions / Cu coordination sites · 1,5-diamino-4,8-dihydroxy-9,10-anthracene dione (DDA) | unknown · PristineElectronically conductive pi-d conjugated metal-organic framework; powder XRD peaks indexed to (100), (010), (210), (020), and (001) planes. | 2-3 · Introduction; Results and discussion · Fig. 1 |
| DDA ligand | Not specified1,5-diamino-4,8-dihydroxy-9,10-anthracene dione | 0D · UnknownPristine organic linker control. | 2 · 2.1 · Fig. 1c,i |
| NaV3O8 (NVO) | NaV3O8V oxide framework | unknown · UnknownNon-MOF cathode control for full cells. | 3 · 2.2.3 |
| Zn@DDA-Cu | Not specifiedDDA-Cu Cu sites on zinc foil substrate · DDA-Cu film | unknown · CompositeComposite zinc anode with DDA-Cu MOF film protective layer. | 3,7 · 2.2.2; Results and discussion · Fig. 6 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Bare Zn anoderesearch_0839__mat__bare_zn_control | Electrode · Pristine Control · Unknown | Commercial/bare zinc foil anode control.zinc foil | 3 · 2.4 · Figs. 6-10 |
| DDA-Cu cathode electroderesearch_0839__mat__dda_cu | Electrode · Composite Sample · Composite | DDA-Cu, conductive additive and PVDF in 6:3:1 mass ratio with NMP, coated on stainless-steel mesh and dried.stainless-steel mesh | 2 · 2.2.1 · Fig. 3 |
| DDA-Cu MOF filmresearch_0839__mat__dda_cu | Thin Film · Target Sample · Pristine Framework | Interfacial film formed from DDA in dichloromethane and copper acetate in water.liquid-liquid interface before transfer | 2-3 · 2.2.2 · Fig. 1a |
| DDA-Cu powderresearch_0839__mat__dda_cu | Powder · Target Sample · Pristine Framework | Solvothermal/oil-bath powder; washed, vacuum dried, ground. | 2 · 2.2.1 · Fig. 1 |
| DDA ligandresearch_0839__mat__dda_ligand | Powder · Pristine Control · Unknown | Commercial/pristine ligand used for comparison. | 2-3 · 2.1; Results and discussion · Fig. 1c,i |
| NVO cathode electroderesearch_0839__mat__nvo_control | Electrode · Pristine Control · Composite | NVO powder, acetylene black and PVDF in 70:20:10 ratio with NMP, dried at 70 C.current collector | 3 · 2.2.3 · Fig. 10 |
| Zn@DDA-Cu-1research_0839__mat__zn_dda_cu | Electrode · Composite Sample · Composite | DDA-Cu film grown for one day then used for composite anode.zinc foil · 89.32 nm | 11 · Results and discussion · Fig. 9a,c,e |
| Zn@DDA-Cu-2research_0839__mat__zn_dda_cu | Electrode · Composite Sample · Composite | DDA-Cu film grown for two days then used for composite anode.zinc foil · 105 nm | 11 · Results and discussion · Fig. 9b,d,f |
| Zn@DDA-Cu composite anoderesearch_0839__mat__zn_dda_cu | Electrode · Composite Sample · Composite | Three-day DDA-Cu interfacial film transferred to cleaned zinc foil and dried at 40 C.zinc foil disk · ~132 nm / 131.85 nm DDA-Cu film | 3,7,11 · 2.2.2; Results and discussion · Fig. 6c; Fig. 9 |