Du J., Zhang F., Jiang L. et al. · Inorganic Chemistry Communications · 2023 · 111661
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-MOF-C is the best OER electrocatalyst among the three main Co-MOFs, with the lowest overpotential, smallest Tafel slope, highest Cdl and lowest Rct.
Caveat: Performance is application electrochemistry on MOF/Nafion electrodes rather than intrinsic bulk conductivity.
p004-p005 / journal pages 4-5 · 2. Result and discussion · Fig. 4 · Linked to 4 structured results
Co-MOF-C shows good operational stability in alkaline OER, with 9.35% decay after 10 h and no significant LSV degradation after 1000 CV cycles.
Caveat: Longer-term industrial-current stability was not reported.
p005 / journal page 5 · 2. Result and discussion · Fig. 5a-c · Linked to 3 structured results
ICP-OES confirms similar cobalt contents for Co-MOF-A, Co-MOF-B and Co-MOF-C, consistent with the intended isomorphic Co2(OH)2BDC compositions.
Caveat: ICP verifies cobalt content but does not by itself prove crystallographic topology.
p003 / journal page 3 · 2. Result and discussion · Table S1 · Linked to 4 structured results
The laminar nanostructure of Co-MOF-C is proposed to expose more active sites, improve electron/charge transfer and enhance OER kinetics.
Caveat: Causal assignment is inferred from morphology/porosity/EIS correlations rather than direct conductivity measurement.
p005 / journal page 5 · 2. Result and discussion · Fig. 4 · Linked to 4 structured results
During OER, Co-MOF-C develops surface-oxidised Co3+ and CoOOH-like sites that are likely catalytically active.
Caveat: The paper states CoOOH is likely generated; this is an inferred active species from XPS/PXRD/FTIR rather than isolated phase proof.
p006 / journal page 6 · 2. Result and discussion · Fig. 5d; Fig. S12-S13 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-MOF-A | Co2(OH)2BDCCo2+ cobalt centres · BDC / 1,4-benzenedicarboxylate from H2BDC | unknown · PristineMonoclinic Co2(OH)2BDC framework, space group C2/m; lumpy morphology composed of tightly stacked sheet-like MOF structures. | p003 / journal page 3 · 2. Result and discussion · Fig. 2a; Fig. 3a |
| Co-MOF-B | Co2(OH)2BDCCo2+ cobalt centres · BDC / 1,4-benzenedicarboxylate from H2BDC | unknown · PristineMonoclinic Co2(OH)2BDC framework, space group C2/m; block crystal morphology. | p003-p004 / journal pages 3-4 · 2. Result and discussion · Fig. 3b |
| Co-MOF-C | Co2(OH)2BDCCo2+ cobalt centres · BDC / 1,4-benzenedicarboxylate from H2BDC | unknown · PristineMonoclinic Co2(OH)2BDC framework, space group C2/m; laminar nanostructure with dispersed nanosheets. | p004 / journal page 4 · 2. Result and discussion · Fig. 3c-d |
| Co-MOF-D | Co2(OH)2BDCCo2+ cobalt centres · BDC / 1,4-benzenedicarboxylate from H2BDC | unknown · PristineIsomorphic Co-MOF with laminar nanostructure similar to Co-MOF-C. | p004 / journal page 4 · 2. Result and discussion · Fig. S6 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Co-MOF-A on carbon fibre paperresearch_0666__mat__mat_co_mof_a | Electrode · Pristine Control · Composite | drop-coated catalyst ink; catalyst blended with DMF and Nafion in an 8:1:1 ratiocarbon fibre paper | text-only SI · Fig. S8 caption and text · Fig. S8c-d |
| Co-MOF-A on glassy carbon electroderesearch_0666__mat__mat_co_mof_a | Electrode · Pristine Control · Composite | 3 mg catalyst plus 40 uL 5% Nafion dispersed in 960 uL DMF; 7 uL ink drop-cast; mass loading 0.30 mg cm-23 mm diameter glassy carbon electrode | text-only SI · 1.4. Electrochemical Measurements |
| Co-MOF-A powderresearch_0666__mat__mat_co_mof_a | Powder · Pristine Control · Pristine Framework | as-synthesised ultrasonicated Co-MOF; sheet-like structures tightly stacked into lumpy particles | p004 / journal page 4 · 2. Result and discussion · Fig. 3a |
| Co-MOF-B on carbon fibre paperresearch_0666__mat__mat_co_mof_b | Electrode · Pristine Control · Composite | drop-coated catalyst ink; catalyst blended with DMF and Nafion in an 8:1:1 ratiocarbon fibre paper | text-only SI · Fig. S8 caption and text · Fig. S8c-d |
| Co-MOF-B on glassy carbon electroderesearch_0666__mat__mat_co_mof_b | Electrode · Pristine Control · Composite | 3 mg catalyst plus 40 uL 5% Nafion dispersed in 960 uL DMF; 7 uL ink drop-cast; mass loading 0.30 mg cm-23 mm diameter glassy carbon electrode | text-only SI · 1.4. Electrochemical Measurements |
| Co-MOF-B powderresearch_0666__mat__mat_co_mof_b | Powder · Pristine Control · Pristine Framework | as-synthesised solvothermal Co-MOF with block crystal morphology | p004 / journal page 4 · 2. Result and discussion · Fig. 3b |
| Co-MOF-C on carbon fibre paperresearch_0666__mat__mat_co_mof_c | Electrode · Target Sample · Composite | drop-coated catalyst ink; catalyst blended with DMF and Nafion in an 8:1:1 ratiocarbon fibre paper | text-only SI · Fig. S8 caption and text · Fig. S8c-d |
| Co-MOF-C on glassy carbon electroderesearch_0666__mat__mat_co_mof_c | Electrode · Target Sample · Composite | 3 mg catalyst plus 40 uL 5% Nafion dispersed in 960 uL DMF; 7 uL ink drop-cast; mass loading 0.30 mg cm-23 mm diameter glassy carbon electrode | text-only SI · 1.4. Electrochemical Measurements |
| Co-MOF-C electrode after OER testingresearch_0666__mat__mat_co_mof_c | Electrode · Target Sample · Unknown | post-chronoamperometric/electrolysis/CV-tested Co-MOF-C electrode; surface oxidised with probable CoOOH and partial amorphisationglassy carbon electrode for principal electrochemical tests | p006 / journal page 6 · 2. Result and discussion · Fig. 5d; Fig. S12-S14 |
| Co-MOF-C powderresearch_0666__mat__mat_co_mof_c | Nanosheet · Target Sample · Pristine Framework | as-synthesised PVP-assisted solvothermal Co-MOF with laminar nanostructure and dispersed nanosheets | p004 / journal page 4 · 2. Result and discussion · Fig. 3c-d |
| Co-MOF-D powderresearch_0666__mat__mat_co_mof_d | Nanosheet · Pristine Control · Pristine Framework | as-synthesised PVP-assisted solvothermal Co-MOF with the same ratio as Co-MOF-A; laminar nanostructure similar to Co-MOF-C | p004 / journal page 4 · 2. Result and discussion · Fig. S6 |