Zheng F., Xiang D., Li P. et al. · ACS Sustainable Chemistry and Engineering · 2019 · 9743-9749
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 as-prepared FeNi-DOBDC MOFs are directly applied as OER electrocatalysts with no post-annealing treatment, unlike many MOF-derived catalysts that require high-temperature carbonisation.
Caveat: Catalyst electrodes include carbon black and Nafion in the ink, so electrochemical performance is not a purely binder-free MOF measurement.
p001 / article p.9743 · Abstract · Linked to 3 structured results
The detailed crystal structure of the FeNi-MOF was not solved in this paper.
p004 / article p.9746 · Results and Discussion · Linked to 1 structured result
Regular nanosheet morphology in FeNi-DOBDC-2 and FeNi-DOBDC-3 is linked to enhanced OER activity because it makes more metal centres available to reactants.
Caveat: The morphology-activity relationship is inferred from sample comparisons and not isolated from Fe/Ni composition, porosity and precursor effects.
p005 / article p.9747 · Results and Discussion · Figures 4 and S5 · Linked to 4 structured results
Using FeSO4.7H2O as the Fe precursor is beneficial for forming the high-activity FeNi-MOF; FeCl2 and FeCl3 variants form mixtures and show lower OER performance.
Caveat: Alternative-precursor OER curves in Figure S4b are graphical; exact overpotentials for MOF(FeCl2) and MOF(FeCl3) are not tabulated.
p005 / article p.9747 · Results and Discussion · Figure S4 · Linked to 2 structured results
Fe incorporation in Ni-MOF lowers EIS charge-transfer resistance and is argued to provide faster catalytic kinetics and intrinsically high electrical conductivities for the bimetallic FeNi-MOF nanosheets.
Caveat: The paper reports EIS-derived charge-transfer resistance rather than a direct four-probe or pressed-pellet electrical conductivity value for FeNi-DOBDC-3.
p005 / article p.9747 · Results and Discussion · Figure 4d,e · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Fe-complex | FeSO4(H2O)-H4DOBDC complexFe centres · H4DOBDC / DOBDC-containing species | unknown · UnknownFe-only product assigned as an FeSO4(H2O) and H4DOBDC complex rather than Fe-MOF-74. | p003 / article p.9745 · Results and Discussion · Figure 1a |
| Bimetallic FeNi-DOBDC / FeNi-MOF | Fe/Ni-DOBDCMixed Fe and Ni centres · DOBDC from H4DOBDC | unknown · PristineBimetallic FeNi-MOF; XRD differs from Ni-MOF and the authors infer a new MOF structure may form when Fe is incorporated. | p003 / article p.9745 · Results and Discussion · Figure 1a |
| FeNi-DOBDC products from FeCl2 or FeCl3 precursors | Fe/Ni-DOBDC productsMixed Fe and Ni centres · DOBDC from H4DOBDC | unknown · PristineProducts from FeCl2 or FeCl3 are described as mixtures of MOF-74 and the new structured MOF. | p004-p005 / article pp.9746-9747 · Results and Discussion · Figure S4a |
| Ni-MOF / Ni-MOF-74Browse family: Ni₂(DOBDC) / Ni–MOF-74 / CPO-27-Ni | Ni-DOBDC / Ni-MOF-74Ni centres · DOBDC from 2,5-dihydroxyterephthalic acid (H4DOBDC) | 3D · PristineMOF-74-type crystalline framework; XRD agrees with simulated MOF-74. | p003 / article p.9745 · Results and Discussion · Figure 1a |
| Commercial RuO2 | RuO2Ru oxide | 0D · UnknownCommercial precious-metal oxide OER benchmark. | p005 / article p.9747 · Results and Discussion · Figure 4 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Fe-complexresearch_0149__mat__mat_fe_complex | Powder · Pristine Control · Unknown | As-prepared Fe-only control from FeSO4.7H2O and H4DOBDC under the same solvothermal method. | p003 / article p.9745 · Results and Discussion · Figure 1a |
| FeNi-DOBDC-1research_0149__mat__mat_feni_dobdc | Nanosheet · Target Sample · Mixed Metal | As-prepared bimetallic FeNi-MOF; Table S1 nominal Fe:Ni = 1:9, product Fe:Ni = 1:2.345.mean nanosheet thickness 18.3 nm | p010 / S10 · Figure S5 caption · Figure S5 |
| FeNi-DOBDC-2research_0149__mat__mat_feni_dobdc | Nanosheet · Target Sample · Mixed Metal | As-prepared bimetallic FeNi-MOF; Table S1 nominal Fe:Ni = 1:5, product Fe:Ni = 1:1.255.mean nanosheet thickness 18.5 nm | p010 / S10 · Figure S5 caption and histogram · Figure S5 |
| FeNi-DOBDC-3research_0149__mat__mat_feni_dobdc | Nanosheet · Target Sample · Mixed Metal | Optimised as-prepared bimetallic FeNi-MOF; Table S1 nominal Fe:Ni = 1:3, product Fe:Ni = 1:1.171.mean nanosheet thickness 19.0 nm | p005-p006 / article pp.9747-9748 · Results and Discussion; Conclusions · Figures 2, 4, 5 |
| FeNi-DOBDC-4research_0149__mat__mat_feni_dobdc | Nanosheet · Target Sample · Mixed Metal | As-prepared bimetallic FeNi-MOF; Table S1 nominal Fe:Ni = 1:1, product Fe:Ni = 1:0.503.mean nanosheet thickness 33.4 nm | p005 / article p.9747 · Results and Discussion · Figure S5d |
| MOF(FeCl2)research_0149__mat__mat_feni_fecl_products | Powder · Pristine Control · Mixed Metal | Alternative FeNi-MOF sample prepared with FeCl2 as Fe precursor at Fe:Ni = 1:3. | p009 / S9 · Figure S4 caption · Figure S4 |
| MOF(FeCl3)research_0149__mat__mat_feni_fecl_products | Powder · Pristine Control · Mixed Metal | Alternative FeNi-MOF sample prepared with FeCl3 as Fe precursor at Fe:Ni = 1:3. | p009 / S9 · Figure S4 caption · Figure S4 |
| Ni-MOFresearch_0149__mat__mat_ni_mof_74 | Powder · Pristine Control · Pristine Framework | As-prepared solvothermal Ni-MOF; used directly after methanol washing/soaking and vacuum drying, without post-calcination. | p003-p005 / article pp.9745-9747 · Results and Discussion · Figures 1-4 |
| commercial RuO2research_0149__mat__mat_ruo2 | Powder · Pristine Control · Unknown | Commercial benchmark catalyst tested under the same OER ink/electrode protocol. | p005 / article p.9747 · Results and Discussion · Figure 4 |