T P., Narayana M.L., N․K․ M. et al. · Electrochimica Acta · 2025 · 145343
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.
Co-CAT-W outperforms Co-CAT-WO for OER, with lower eta10, lower Tafel slope, higher ECSA, smaller redox peak separation, and smaller electrochemical HOMO-LUMO gap.
Caveat: Before-cycle Co-CAT-W performance is best for eta10, but after-cycle current density decreases relative to before-cycle current at 1.7 V.
11 · 4. Conclusions · Linked to 7 structured results
Both Co-CAT-WO and Co-CAT-W are crystalline 2D layered hexagonal Co-catecholate MOFs with honeycomb pores.
Caveat: No CIF or full refined crystallographic table was provided in the assigned documents.
11 · 4. Conclusions · Linked to 4 structured results
Adding NMP changes Co-CAT morphology and reduces surface area/pore volume, consistent with NMP-associated pore blockage.
Caveat: NMP quantity remaining in the final material was not quantified.
5 · 3.3. N2 sorption measurements · Fig. 5 · Linked to 4 structured results
During OER, Co-CAT-W behaves as a precatalyst that partially transforms into cobalt hydroxide/oxyhydroxide active species.
Caveat: SI figure images/table are missing from the assigned input; the extracted peak values come from main-text discussion of SI figures.
11 · 4. Conclusions · Fig. S2, Fig. S3 · Linked to 5 structured results
The conductive 2D Co-CAT framework and porous structure support charge transport for OER.
Caveat: Conductivity was calculated rather than measured by a dedicated four-probe transport device, and the geometry details are limited.
1 · Abstract · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-catecholate MOF (Co-CAT)Browse family: Co₃(HHTP)₂ / Co–HHTP | Co3(HHTP)2(H2O)6 / Co3(HHTP)1(H2O)12 layered structural motifCo2+ · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) catecholate linker | 2D · PristineCrystalline 2D layered hexagonal Co-catecholate framework with honeycomb pores; trigonal P3c1 reported from prior structural assignment. | 2 · Introduction · Scheme 1 |
| Post-OER Co-CAT-W-derived cobalt hydroxide/oxyhydroxide | Co(OH)2 / Co-OOH species after OERCo2+/Co3+ · partly transformed Co-CAT-W framework residue | unknown · DerivedElectrochemically transformed post-OER material containing metal hydroxide and metal oxyhydroxide. | 11 · 3.6. Post-OER studies · Fig. S2, Fig. S3 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Co-CAT-W catalyst ink on glassy carbon electroderesearch_0196__mat__co_cat_framework | Electrode · Target Sample · Composite | 1.5 mg Co-CAT-W with Nafion in water, sonicated 1 h, 5 uL drop-cast on GCE and vacuum dried 30 min.glassy carbon electrode | 3 · 2.4. Electrocatalytic measurements |
| Co-CAT-W after OER testingresearch_0196__mat__co_cat_w_post_oer_derived | Electrode · Target Sample · Unknown | Post-OER Co-CAT-W electrode after electrochemical OER studies in alkaline electrolyte.glassy carbon electrode | 9 · 3.6. Post-OER studies · Fig. S1-S3 |
| Co-CAT-Wresearch_0196__mat__co_cat_framework | Powder · Target Sample · Guest Loaded | As-synthesised microwave-hydrothermal powder prepared with 2 mL NMP; dried at room temperature and ground. | 3 · 2.2. Synthesis of Co-CAT · Scheme 2b |
| Co-CAT-WO catalyst ink on glassy carbon electroderesearch_0196__mat__co_cat_framework | Electrode · Pristine Control · Composite | 1.5 mg Co-CAT-WO with Nafion in water, sonicated 1 h, 5 uL drop-cast on GCE and vacuum dried 30 min.glassy carbon electrode | 3 · 2.4. Electrocatalytic measurements |
| Co-CAT-WOresearch_0196__mat__co_cat_framework | Powder · Pristine Control · Pristine Framework | As-synthesised microwave-hydrothermal powder prepared without NMP; dried at room temperature and ground. | 3 · 2.2. Synthesis of Co-CAT · Scheme 2a |