Abdelhafiz A., Mohammed M.H., Abed J. et al. · Advanced Energy Materials · 2024 · 2303350
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.
MEA testing differs from 3-electrode testing because electrolyte circulation and Ni foam support mitigate gas-bubble and carbon-corrosion artefacts seen in carbon-fibre-paper 3-electrode setups.
Caveat: Mechanistic explanation is partly interpretive but explicitly argued by authors.
9 · 2.4 Full Cell Membrane Electrode Assembly Testing · Linked to 2 structured results
The main text states twenty-five distinct isostructural MOFs were examined, whereas the supplied SI Table S1 lists sixteen named compositions; the sample-level extraction follows the SI table.
Caveat: Additional unnamed or unlisted compositions may have been considered by the authors but are not recoverable from the provided Table S1/figures.
2 · Table S1 · Table S1 · Linked to 2 structured results
High Co loading greatly raises Cdl/ECSA but does not alone dictate OER activity; Co90Ni5Fe5 has much lower intrinsic activity than Ni5Co47.5Fe47.5 and Fe10Ni45Co45.
Caveat: Intrinsic activity is discussed qualitatively; no numeric ECSA-normalised current density is reported in main text.
5 · 2.2 Electrocatalytic Activity Toward OER · Figure 2f · Linked to 3 structured results
The optimal composition is Fe10Ni45Co45, with Ni and Co rich and Fe lean, giving outstanding OER performance in AEMEC at 1 A cm-2.
Caveat: Detailed full composition table and SI supporting figures were unavailable in this extraction batch.
10 · 3. Conclusion · Linked to 4 structured results
Using FeSO4 as the Fe source stabilises Fe2+ and helps form pristine trimetallic MOF-74 without iron oxide impurities.
Caveat: The detailed recipe and impurity-control evidence are partially in the missing SI.
3 · 2.1 Synthesis and Structure · Linked to 1 structured result
The SI provides a common solvothermal MOF-74 synthesis with sample-specific Ni, Co and Fe precursor masses, plus wash, solvent-exchange and activation details.
Caveat: Absolute solvent volumes, autoclave volume and synthesis atmosphere are not reported.
1-2 · Synthesis and Table S1 · Table S1 · Linked to 1 structured result
OER activation is linked to dynamic structural/chemical transformation of MOF-74 into oxyhydroxide-like moieties, increased metal oxidation state, compressive strain, and oxygen-vacancy-associated conductivity enhancement.
Caveat: Some supporting XPS and reference spectra are in missing SI figures.
8-10 · 2.3 and 3. Conclusion · Figure 4 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Binary Fe-Co MOF-74 | Fe/Co-MOF-74Fe, Ni and Co mixed-metal MOF-74 rod-shaped metal nodes · 2,5-dioxido-1,4-benzenedicarboxylate (DOBDC) | 3D · PristineMOF-74 isostructural analogue; large one-dimensional hexagonal channels; cations described as random solid solution without long-range order | 9 · 2.4 Full Cell Membrane Electrode Assembly Testing · Figure 5a |
| Binary mixed-metal MOF-74 analogues | M/M'-MOF-74 with M/M' = Ni/Co, Ni/Fe, or Co/FeBinary combinations of Ni, Co and Fe in MOF-74 rod-shaped metal nodes · 2,5-dioxido-1,4-benzenedicarboxylate (DOBDC) | 3D · PristineMOF-74 isostructural analogue; PXRD patterns compared with simulated MOF-74 pattern in SI Figure S1 | 2-3 · Table S1 and Figure S1 · Table S1/Figure S1 |
| Co100-2xNixFex MOF-74 series | Co100-2xNixFex-MOF-74Fe, Ni and Co mixed-metal MOF-74 rod-shaped metal nodes · 2,5-dioxido-1,4-benzenedicarboxylate (DOBDC) | 3D · PristineMOF-74 isostructural analogue; large one-dimensional hexagonal channels; cations described as random solid solution without long-range order | 3 · 2.1 Synthesis and Structure · Figure 1 |
| Fe100-2xNixCox MOF-74 series | Fe100-2xNixCox-MOF-74Fe, Ni and Co mixed-metal MOF-74 rod-shaped metal nodes · 2,5-dioxido-1,4-benzenedicarboxylate (DOBDC) | 3D · PristineMOF-74 isostructural analogue; large one-dimensional hexagonal channels; cations described as random solid solution without long-range order | 3 · 2.1 Synthesis and Structure · Figure 1 |
| Fe/Ni/Co mixed-metal MOF-74 analogues | M2(DOBDC) with M = Fe/Ni/Co in variable ratiosFe, Ni and Co mixed-metal MOF-74 rod-shaped metal nodes · 2,5-dioxido-1,4-benzenedicarboxylate (DOBDC) | 3D · PristineMOF-74 isostructural analogue; large one-dimensional hexagonal channels; cations described as random solid solution without long-range order | 2 · 2.1 Synthesis and Structure · Figure 1 |
| Ni100-2xCoxFex MOF-74 series | Ni100-2xCoxFex-MOF-74Fe, Ni and Co mixed-metal MOF-74 rod-shaped metal nodes · 2,5-dioxido-1,4-benzenedicarboxylate (DOBDC) | 3D · PristineMOF-74 isostructural analogue; large one-dimensional hexagonal channels; cations described as random solid solution without long-range order | 3 · 2.1 Synthesis and Structure · Figure 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| All synthesised MOF-74 analoguesresearch_0486__mat__mof74_feni_co | Powder · Paper Level Unspecified · Pristine Framework | as-synthesised MOF-74 powder | 2-3 · 2.1 Synthesis and Structure · Figure 1 |
| Binary Fe-Co MOF-74 MEA anode catalystresearch_0486__mat__mof74_binary_fe_co | Electrode · Pristine Control · Composite | MOF catalyst sprayed on porous transport layer for AEMEC full-cell testingNi foam anode support in MEA | 9 · 2.4 Full Cell Membrane Electrode Assembly Testing · Figure 5a |
| Co10Ni45Fe45 MOF-74research_0486__mat__mof74_co_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Co50Fe50 MOF-74research_0486__mat__mof74_binary_fe_co | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Co50Ni25Fe25 MOF-74research_0486__mat__mof74_co_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Co80Fe20 MOF-74research_0486__mat__mof74_binary_fe_co | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Co90Ni5Fe5 MOF-74research_0486__mat__mof74_co_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Co100-2xNixFex MOF-74 composition seriesresearch_0486__mat__mof74_co_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2-3 · 2.1 Synthesis and Structure · Figure 1 |
| Fe10Ni45Co45 MOF-74research_0486__mat__mof74_fe_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Fe10Ni45Co45 MOF-74 MEA anode catalystresearch_0486__mat__mof74_fe_series | Electrode · Target Sample · Composite | Fe10Ni45Co45 MOF catalyst incorporated in membrane electrode assembly; commercial Pt/carbon cathode catalystNi foam anode support in MEA | 9 · 2.4 Full Cell Membrane Electrode Assembly Testing · Figure 5b-c |
| Fe20Ni40Co40 MOF-74research_0486__mat__mof74_fe_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Fe50Ni25Co25 MOF-74research_0486__mat__mof74_fe_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Fe80Ni10Co10 MOF-74research_0486__mat__mof74_fe_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Fe100-2xNixCox MOF-74 composition seriesresearch_0486__mat__mof74_fe_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2-3 · 2.1 Synthesis and Structure · Figure 1 |
| Ni10Co45Fe45 MOF-74research_0486__mat__mof74_ni_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Ni33Co33Fe33 MOF-74research_0486__mat__mof74_ni_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Ni50Co25Fe25 MOF-74research_0486__mat__mof74_ni_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Ni50Co50 MOF-74research_0486__mat__mof74_binary_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Ni50Fe50 MOF-74research_0486__mat__mof74_binary_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Ni5Co47.5Fe47.5 MOF-74research_0486__mat__mof74_ni_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Ni80Co10Fe10 MOF-74research_0486__mat__mof74_ni_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2 · Table S1 · Table S1 |
| Ni100-2xCoxFex MOF-74 composition seriesresearch_0486__mat__mof74_ni_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2-3 · 2.1 Synthesis and Structure · Figure 1 |
| Ni10Co45Fe45 MOF-74 used for in situ XAS/XPSresearch_0486__mat__mof74_ni_series | Powder · Target Sample · Pristine Framework | as-synthesised MOF-74 powder | 2-3 · 2.1 Synthesis and Structure · Figure 1 |