Godara M., Chowdhury S., Cheng P. et al. · Advanced Energy and Sustainability Research · 2025 · 2300301
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 1:2 Mn:Co MOF likely acts as a precatalyst during OER, reconstructing to active Mn-Co oxy(hydroxide) species on the surface.
Caveat: Postcycling SEM is available in SI Figure S6; XPS evidence is in the main article. The authors infer reconstruction from post-OER surface/morphology changes.
main p.7 · OER mechanism discussion · Figure 6 and Figure S5 · Linked to 3 structured results
The 1:2 Mn:Co MOF has the highest AC conductivity, about 25% higher than the other samples, likely due to an additional conduction mechanism enabled by the optimised Mn:Co ratio.
Caveat: The paper gives the enhancement and range but not exact tabulated sigmaAC values for each sample.
main p.5 · Electrical Properties · Figure 4 · Linked to 1 structured result
Higher AC conductivity correlates with improved OER activity, with 1:2 Mn:Co showing both the highest conductivity and the lowest overpotential/Tafel slope.
Caveat: Correlation is empirical over a small five-sample series.
main p.6 · OER Performance · Figures 4 and 5 · Linked to 4 structured results
Measured Mn/Co ratios deviating from feed ratios suggest possible cation exchange, where Co2+ ions are replaced by Mn2+ ions in bimetallic Mn-Co BTC samples.
Caveat: Presented as a possibility; no direct mechanistic experiment is reported.
main p.3 · MOF Characterization · Linked to 3 structured results
Charge transport in these MOFs primarily occurs via hopping at lower frequencies and transitions to lattice response at higher frequencies.
Caveat: Per-sample exponent values are graphical and not tabulated in the main text; raw fit data are not available in the assigned documents.
main p.7 · Conclusion · Figure 4 · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-BTC MOF | Co3(BTC)2.12H2O assignment from XRD comparisonCo ions, discussed as Co2+/Co3+ redox centres. · BTC = benzene-1,3,5-tricarboxylate. | unknown · PristineCrystalline Co-BTC; main peaks at about 8.7, 17.6, 24.6, and 35.6 degrees match Co3(BTC)2.12H2O literature pattern. | main p.2 · MOF Characterization · Figure 1a |
| Mn-BTC MOF | Mn3(BTC)2.6H2O assignment from XRD comparisonMn ions, reported as Mn2+/Mn3+/Mn4+ redox-capable centres in the broader discussion. · BTC = benzene-1,3,5-tricarboxylate. | unknown · PristineCrystalline Mn-BTC; main XRD peaks at about 10.4, 20.8, 38.1, and 43.1 degrees match Mn3(BTC)2.6H2O literature patterns. | main p.2 · MOF Characterization · Figure 1a |
| 1:1 Mn:Co BTC MOF | Mn-Co BTC, exact formula not reportedMixed Mn and Co ions; measured Mn/Co concentration ratio 1.13. · BTC = benzene-1,3,5-tricarboxylate. | unknown · PristineBimetallic Mn-Co BTC; XRD pattern resembles Co-BTC with varying intensities. | main p.3 · MOF Characterization · Figure 1 and ICP text |
| 1:2 Mn:Co BTC MOF | Mn-Co BTC, exact formula not reportedMixed Mn and Co ions; measured Mn/Co concentration ratio 0.31. · BTC = benzene-1,3,5-tricarboxylate. | unknown · PristineBimetallic Mn-Co BTC; XRD pattern resembles Co-BTC with varying intensities. | main p.3 · MOF Characterization · Figure 1 and ICP text |
| 2:1 Mn:Co BTC MOF | Mn-Co BTC, exact formula not reportedMixed Mn and Co ions; measured Mn/Co concentration ratio 6.38. · BTC = benzene-1,3,5-tricarboxylate. | unknown · PristineBimetallic Mn-Co BTC; XRD peaks are identical to pure Mn-BTC, suggesting isostructural nature with Mn-BTC. | main p.2 · MOF Characterization · Figure 1a |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Co-BTC powder drop-cast on glassy carbon electroderesearch_0437__mat__co_btc | Electrode · Pristine Control · Pristine Framework | 3 mg MOF in ethanol/DI water plus 30 uL Nafion; 2 uL slurry drop-cast and dried for 12 h.5 mm glassy carbon electrode | main p.8 · Electrochemical Measurements for OER |
| Co-BTC cold-pressed pelletresearch_0437__mat__co_btc | Pellet · Pristine Control · Pristine Framework | Powder compacted into 3 mm pellet under about 1 GPa for electrical/dielectric measurements. | main p.7 · Experimental Section |
| Mn-BTC powder drop-cast on glassy carbon electroderesearch_0437__mat__mn_btc | Electrode · Pristine Control · Pristine Framework | 3 mg MOF in ethanol/DI water plus 30 uL Nafion; 2 uL slurry drop-cast and dried for 12 h.5 mm glassy carbon electrode | main p.8 · Electrochemical Measurements for OER |
| Mn-BTC cold-pressed pelletresearch_0437__mat__mn_btc | Pellet · Pristine Control · Pristine Framework | Powder compacted into 3 mm pellet under about 1 GPa for electrical/dielectric measurements. | main p.7 · Experimental Section |
| 1:1 Mn:Co powder drop-cast on glassy carbon electroderesearch_0437__mat__mnco_btc_1_1 | Electrode · Target Sample · Mixed Metal | 3 mg MOF in ethanol/DI water plus 30 uL Nafion; 2 uL slurry drop-cast and dried for 12 h.5 mm glassy carbon electrode | main p.8 · Electrochemical Measurements for OER |
| 1:1 Mn:Co cold-pressed pelletresearch_0437__mat__mnco_btc_1_1 | Pellet · Target Sample · Mixed Metal | Bimetallic powder with feed Mn:Co 1:1 compacted into 3 mm pellet under about 1 GPa. | main p.7 · Experimental Section |
| 1:2 Mn:Co MOF ink on carbon paper for OER stabilityresearch_0437__mat__mnco_btc_1_2 | Electrode · Target Sample · Mixed Metal | 4 mg mL^-1 MOF-containing ink drop-cast until fully covered and dried at ambient temperature.0.5 x 0.5 cm carbon paper | main p.8 · Electrochemical Measurements for OER |
| 1:2 Mn:Co powder drop-cast on glassy carbon electroderesearch_0437__mat__mnco_btc_1_2 | Electrode · Target Sample · Mixed Metal | 3 mg MOF in ethanol/DI water plus 30 uL Nafion; 2 uL slurry drop-cast and dried for 12 h.5 mm glassy carbon electrode | main p.8 · Electrochemical Measurements for OER |
| 1:2 Mn:Co cold-pressed pelletresearch_0437__mat__mnco_btc_1_2 | Pellet · Target Sample · Mixed Metal | Bimetallic powder with feed Mn:Co 1:2 compacted into 3 mm pellet under about 1 GPa. | main p.7 · Experimental Section |
| 2:1 Mn:Co powder drop-cast on glassy carbon electroderesearch_0437__mat__mnco_btc_2_1 | Electrode · Target Sample · Mixed Metal | 3 mg MOF in ethanol/DI water plus 30 uL Nafion; 2 uL slurry drop-cast and dried for 12 h.5 mm glassy carbon electrode | main p.8 · Electrochemical Measurements for OER |
| 2:1 Mn:Co cold-pressed pelletresearch_0437__mat__mnco_btc_2_1 | Pellet · Target Sample · Mixed Metal | Bimetallic powder with feed Mn:Co 2:1 compacted into 3 mm pellet under about 1 GPa. | main p.7 · Experimental Section |