Li J., Liu P., Mao J. et al. · Journal of Materials Chemistry A · 2021 · 1623-1629
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.
NiPc-Ni is the best OER catalyst among the four MPc-M' conductive MOFs, with the lowest onset overpotential, lowest Tafel slope, smallest Rct and highest TOF.
Caveat: Performance is measured on glassy-carbon composite catalyst inks, not binder-free pristine MOF films.
1626 · OER performance · Fig. 4 · Linked to 4 structured results
NiPc-Ni is described as durable in OER tests based on chronoamperometry and before/after Ni 2p XPS.
Caveat: The main text states durability qualitatively; stability current was only visually estimated from the SI figure and carbon-cloth electrode preparation details were not reported.
1626 · OER performance · Fig. S15 · Linked to 1 structured result
Introducing phthalocyanine with extra metal sites into 2D conductive MOFs modulates electronic structure and improves OER activity.
Caveat: Electrochemical electrodes include acetylene black and Nafion, so application results are catalyst-ink composite measurements rather than neat-film conductivity measurements.
1623 · Abstract · Linked to 4 structured results
DFT band structures predict narrow band gaps for the conductive MOFs, with NiPc-Ni having the narrowest gap and therefore favourable electron transfer for OER.
Caveat: Electrical conductivity was inferred from calculated band gaps; no experimental conductivity value is reported.
1625 · Synthesis and characterization · Fig. S14 · Linked to 4 structured results
Ni-O4 linkages show better OER activity than Ni-N4 moieties, and the interaction between Ni-O4 and Ni-N4 sites in NiPc-Ni enhances intrinsic Ni-site activity.
Caveat: The site-specific conclusion is inferred from analogue comparisons, TOF calculations and PDOS; no direct operando site-specific measurement is reported.
1626-1627 · OER performance; DFT calculation · Fig. 5 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| NiPc-Ni conductive MOF | NiPc-Ni; described as charge-neutral NiPc-Ni2 MOFNi-O4 linkages plus Ni-N4 phthalocyanine sites · phthalocyanine-derived NiPc ligand | 2D · PristineEclipsed AA-stacked P4/mmm tetragonal conductive MOF with dual Ni sites. | 1624 · Results and discussion · Fig. 1; Fig. 2 |
| NiPc-Zn conductive MOF | NiPc-ZnZn-O4 linkages plus Ni-N4 phthalocyanine sites · phthalocyanine-derived NiPc ligand | 2D · PristinePlanar dual-metal conductive MOF with PXRD pattern similar to NiPc-Ni. | 1625 · Results and discussion · Fig. S4-S7 |
| ZnPc-Ni conductive MOF | ZnPc-NiNi-O4 linkages plus Zn-N4 phthalocyanine sites · phthalocyanine-derived ZnPc ligand | 2D · PristinePlanar dual-metal conductive MOF with PXRD pattern similar to NiPc-Ni. | 1625 · Results and discussion · Fig. S4-S7 |
| ZnPc-Zn conductive MOF | ZnPc-ZnZn-O4 linkages plus Zn-N4 phthalocyanine sites · phthalocyanine-derived ZnPc ligand | 2D · PristinePlanar Zn-only analogue with PXRD pattern similar to NiPc-Ni. | 1625 · Results and discussion · Fig. S4-S7 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| NiPc-Ni@carbon cloth stability electroderesearch_0483__mat__mat_nipc_ni | Electrode · Composite Sample · Composite | NiPc-Ni on carbon cloth for chronoamperometry stability test; preparation details not reportedcarbon cloth | 14 · Stability Test · Fig. S15 |
| NiPc-Ni catalyst ink on glassy carbonresearch_0483__mat__mat_nipc_ni | Electrode · Composite Sample · Composite | MOF plus acetylene black ink drop-cast, dried at 298 K, Nafion overlayerglassy carbon electrode, 3 mm diameter | 1628 · Electrochemical measurements |
| DFT model of NiPc-Niresearch_0483__mat__mat_nipc_ni | Model · Model System · Model | periodic AA-stacked model used for DFT band structure, DOS and PDOS | 1628 · Theoretical computations · Fig. S14 |
| NiPc-Ni powder/nanosheetsresearch_0483__mat__mat_nipc_ni | Nanosheet · Target Sample · Pristine Framework | solvothermal precipitate filtered, washed with DMF and acetone, vacuum dried at room temperature | 1624 · Synthesis and characterization · Fig. 3 |
| NiPc-Zn catalyst ink on glassy carbonresearch_0483__mat__mat_nipc_zn | Electrode · Composite Sample · Composite | MOF plus acetylene black ink drop-cast, dried at 298 K, Nafion overlayerglassy carbon electrode, 3 mm diameter | 1628 · Electrochemical measurements |
| DFT model of NiPc-Znresearch_0483__mat__mat_nipc_zn | Model · Model System · Model | periodic model used for DFT band structure, DOS and PDOS | 1628 · Theoretical computations · Fig. S14 |
| NiPc-Zn powderresearch_0483__mat__mat_nipc_zn | Powder · Pristine Control · Mixed Metal | solvothermal precipitate prepared by the NiPc-Ni analogue procedure | 1625 · Synthesis and characterization · Fig. S5 |
| ZnPc-Ni catalyst ink on glassy carbonresearch_0483__mat__mat_znpc_ni | Electrode · Composite Sample · Composite | MOF plus acetylene black ink drop-cast, dried at 298 K, Nafion overlayerglassy carbon electrode, 3 mm diameter | 1628 · Electrochemical measurements |
| DFT model of ZnPc-Niresearch_0483__mat__mat_znpc_ni | Model · Model System · Model | periodic model used for DFT band structure, DOS and PDOS | 1628 · Theoretical computations · Fig. S14 |
| ZnPc-Ni powderresearch_0483__mat__mat_znpc_ni | Powder · Pristine Control · Mixed Metal | solvothermal precipitate prepared by the NiPc-Ni analogue procedure | 1625 · Synthesis and characterization · Fig. S5 |
| ZnPc-Zn catalyst ink on glassy carbonresearch_0483__mat__mat_znpc_zn | Electrode · Composite Sample · Composite | MOF plus acetylene black ink drop-cast, dried at 298 K, Nafion overlayerglassy carbon electrode, 3 mm diameter | 1628 · Electrochemical measurements |
| DFT model of ZnPc-Znresearch_0483__mat__mat_znpc_zn | Model · Model System · Model | periodic model used for DFT band structure, DOS and PDOS | 1628 · Theoretical computations · Fig. S14 |
| ZnPc-Zn powderresearch_0483__mat__mat_znpc_zn | Powder · Pristine Control · Pristine Framework | solvothermal precipitate prepared by the NiPc-Ni analogue procedure | 1625 · Synthesis and characterization · Fig. S5 |