Xia H., Zhang J., Yang Z. et al. · Nano-Micro Letters · 2017 · 43
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.
Ni/Co-MOF nanoflakes show better alkaline ORR activity and durability than Ni-MOF nanoflakes and ZIF-67.
Caveat: ORR electrodes include carbon black and Nafion, so results represent catalyst-electrode performance.
8 · Results and Discussion · Fig. 4 · Linked to 5 structured results
Ni/Co-MOF nanoflakes outperform Ni-MOF nanoflakes and ZIF-67 as supercapacitor electrodes in 1 M LiOH.
Caveat: Application results are for drop-cast glassy-carbon electrodes with Nafion binder, not stand-alone bulk MOF conductivity.
7 · Results and Discussion · Fig. 3 · Linked to 4 structured results
The hollow, interconnected 2D/3D Ni/Co-MOF nanoflake microstructure provides mass-transport pathways and ion-buffering reservoirs, improving supercapacitor and ORR performance relative to microporous ZIF-67.
Caveat: Mechanistic link is inferred by authors from morphology and electrochemical comparisons; no direct ion-transport coefficient is reported.
9 · Results and Discussion · Linked to 4 structured results
ZIF-67 rhombododecahedra transform into hollow Ni/Co-MOF nanoflake spheres as Ni2+ partly substitutes Co2+ and the parent polyhedron is etched during solvothermal treatment.
Caveat: Substitution/etching mechanism is proposed from morphology and XRD evolution, not from time-resolved composition data.
4 · Results and Discussion · Scheme 1; Fig. 1 · Linked to 4 structured results
Mixed Ni/Co valence states improve electronic conductivity through electron hopping between cations with different valences, as supported by lower EIS resistance for Ni/Co-MOF.
Caveat: Conductivity is not measured directly; the evidence is an electrochemical impedance resistance comparison in electrode configuration.
9 · Results and Discussion · Fig. S5 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Ni-MOF nanoflakes | Not specifiedNi2+/Ni3+ imidazolate framework centres · 2-methylimidazolate | 2D · Pristine2D ultrathin Ni-imidazolate nanoflakes assembled into hollow spherical microstructures. | 2 · Introduction |
| Ni/Co-MOF nanoflakes | Not specifiedmixed Ni and Co imidazolate framework centres; Ni3+/Ni2+ and Co3+/Co2+ redox couples · 2-methylimidazolate | 2D · Pristine2D mixed-metal MOF nanoflakes assembled into hollow spherical microstructures/nanocages. | 2 · Introduction |
| ZIF-67 nanocrystalsBrowse family: ZIF-67 / Co(mIm)₂ | [Co(MeIm)2]nCo2+ imidazolate framework · 2-methylimidazolate (MeIm) | 3D · PristineZIF-67 rhombododecahedron nanoseeds; XRD matches simulated ZIF-67. | 4 · Results and Discussion · Scheme 1; Fig. S1a |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Ni-MOF nanoflakesresearch_0240__mat__ni_mof_nanoflakes | Nanosheet · Pristine Control · Pristine Framework | Solvothermally transformed hollow nanoflake-assembled spherical microstructures; dried at 60 C for 12 h. | 3 · 2.3 Synthesis of Ni-MOF Nanoflakes |
| Ni/Co-MOF nanoflakesresearch_0240__mat__nico_mof_nanoflakes | Nanosheet · Target Sample · Mixed Metal | Mixed Ni/Co hollow nanoflake-assembled spherical microstructures; dried at 60 C for 12 h. | 3 · 2.4 Synthesis of Ni/Co-MOF Nanoflakes |
| Ni/Co-MOF nanoflake RDE catalyst electroderesearch_0240__mat__nico_mof_nanoflakes | Electrode · Target Sample · Composite | Catalyst ink with 5 mg Ni/Co-MOF catalyst, 5 mg carbon black, ethanol and Nafion loaded on RDE; catalyst loading 0.2 mg cm-2.5 mm glassy carbon rotating disk electrode | 3 · 2.6.2 Oxygen Reduction Reaction |
| Ni/Co-MOF nanoflake glassy-carbon supercapacitor electroderesearch_0240__mat__nico_mof_nanoflakes | Electrode · Target Sample · Mixed Metal | 20 uL of Ni/Co-MOF/Nafion/ethanol ink drop-cast and dried in air; active-material loading 0.1 mg cm-2.5 mm glassy carbon disk | 3 · 2.6.1 Supercapacitor Measurements |
| as-prepared ZIF-67 nanocrystalsresearch_0240__mat__zif67 | Powder · Pristine Control · Pristine Framework | Centrifuged nanocrystals after room-temperature methanolic synthesis. | 3 · 2.2 Synthesis of ZIF-67 |