Iqbal R., Ali S., Saleem A. et al. · Chemical Engineering Journal · 2023 · 140799
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.
A Pt3(C12N6O6)2 MOF-based MEA functions as a PEMFC cathode and reaches 248 mW cm^-2 maximum power density.
Caveat: Application MEA is a composite device, not pristine MOF-only performance.
p. 7 · 3.2 · Fig. S16 · Linked to 3 structured results
Pt3(C12N6O6)2 MOF is reported as durable under acidic ORR cycling and 120 h constant-potential testing.
Caveat: Durability is from application electrode conditions, not standalone conductivity after cycling.
p. 6-7 · 3.2 · Fig. 4c; Fig. S5b · Linked to 4 structured results
Pt3(C12N6O6)2 is assigned as a Pt-O4 square-planar, pi-pi stacked 2D nanosheet MOF with Pt2+ centres.
Caveat: EXAFS fit supports Pt-O coordination; no CIF/local crystallographic file was assigned.
p. 5 · 3.1 · Fig. 3; Fig. S4; Table S12 · Linked to 7 structured results
DFT/CHE modelling assigns Pt sites in Pt-X4 units as more favourable ORR active sites than pyridinic N sites for the O-rich and mixed N/O Pt-MOFs.
Caveat: DFT results are model-system calculations; figure/table values include reported limiting potentials and selected SI intermediate-energy summaries.
p. 8 · 3.3.2 · Fig. 7; Tables S10-S11 · Linked to 5 structured results
Pt3(C12N6O6)2 with Pt-O4 active sites gives the best acidic ORR performance among the three Pt-MOFs.
Caveat: Mass-activity values in the text are not consistent with a simple best-performance ranking.
p. 6 · 3.2 · Fig. 4 · Linked to 5 structured results
The good conductivity of the Pt-MOFs is attributed to electron delocalisation among Pt-X4 units, benzene units and conjugated pyrazine.
Caveat: Transport is measured on pressed pellets; mechanistic support is computational/qualitative.
p. 8 · 3.3.1 · Fig. 5; Fig. S17 · Linked to 6 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| 20 wt% Pt/C | Pt/CPt nanoparticles on carbon support | unknown · CompositeCommercial electrocatalyst comparison sample, not a MOF. | p. 3 · 2.6. Electrochemical measurements |
| Pt3(C12N9H3O3)2 MOF | Pt3(C12N9H3O3)2square-planar Pt ions; Pt-N2O2 coordination motif · mixed N/O conjugated ligand formed from dipyrazino quinoxaline hexamine and hexaketocyclohexane | 2D · PristineLayer-stacked 2D MX4-type Pt-MOF with Pt-N2O2 active sites. | p. 1 · Abstract |
| Pt3(C12N12H6)2 MOF | Pt3(C12N12H6)2square-planar Pt ions; Pt-N4 coordination motif · dipyrazino quinoxaline-2,3,6,7,10,11-hexamine-derived conjugated ligand | 2D · PristineLayer-stacked 2D MX4-type Pt-MOF with hexagonal pores and pi-pi stacked nanosheets. | p. 1 · Abstract |
| Pt3(C12N6O6)2 MOF | Pt3(C12N6O6)2square-planar Pt ions; Pt-O4 coordination motif · dipyrazino quinoxaline-2,3,6,7,10,11-hexaol-derived oxygen-coordinating conjugated ligand | 2D · PristineLayer-stacked electrically conductive 2D Pt-MOF; Pt-O4 square planar unit; best ORR performer. | p. 1 · Abstract |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Pt3(C12N9H3O3)2 MOF RRDE electroderesearch_0811__mat__pt_n2o2_mof | Electrode · Composite Sample · Composite | catalyst ink with 70% isopropanol and Nafion drop-cast on RRDEglassy carbon RRDE | p. 3 · 2.6 |
| Pt3(C12N9H3O3)2 MOF monolayer modelresearch_0811__mat__pt_n2o2_mof | Model · Model System · Model | DFT/DFTB monolayer model | p. 7 · 3.3.1 · Fig. 5 |
| Pt3(C12N9H3O3)2 MOF pressed pelletresearch_0811__mat__pt_n2o2_mof | Pellet · Target Sample · Pristine Framework | pressed at 20 MPa for four-probe conductivity~298 micrometers | p. 10 · Conductivity of Pt3(C12N9H3O3)2 MOF · Figure S13 |
| Pt3(C12N9H3O3)2 MOF black powderresearch_0811__mat__pt_n2o2_mof | Powder · Target Sample · Pristine Framework | centrifuged, washed, vacuum dried overnight at 120 C | p. 3 · 2.3 |
| Pt3(C12N12H6)2 MOF RRDE electroderesearch_0811__mat__pt_n4_mof | Electrode · Composite Sample · Composite | catalyst ink with 70% isopropanol and Nafion drop-cast on RRDEglassy carbon RRDE | p. 3 · 2.6 |
| Pt3(C12N12H6)2 MOF monolayer modelresearch_0811__mat__pt_n4_mof | Model · Model System · Model | DFT/DFTB monolayer model | p. 7 · 3.3.1 · Fig. 5 |
| Pt3(C12N12H6)2 MOF pressed pelletresearch_0811__mat__pt_n4_mof | Pellet · Target Sample · Pristine Framework | pressed at 20 MPa for four-probe conductivity~328 micrometers | p. 10 · Conductivity of Pt3(C12N12H6)2 MOF · Figure S14 |
| Pt3(C12N12H6)2 MOF black powderresearch_0811__mat__pt_n4_mof | Powder · Target Sample · Pristine Framework | centrifuged, washed, vacuum dried overnight at 120 C | p. 3 · 2.2 |
| Pt3(C12N6O6)2 MOF after 120 h stability testresearch_0811__mat__pt_o4_mof | Nanosheet · Target Sample · Pristine Framework | after 120 h acidic ORR stability test | p. 6 · Structural and Electrochemical Characterizations · Figure S6 |
| Pt3(C12N6O6)2 MOF RRDE electroderesearch_0811__mat__pt_o4_mof | Electrode · Composite Sample · Composite | catalyst ink with 70% isopropanol and Nafion drop-cast on RRDEglassy carbon RRDE | p. 3 · 2.6 |
| Pt3(C12N6O6)2 MOF-based MEA cathoderesearch_0811__mat__pt_o4_mof | Electrode · Composite Sample · Composite | catalyst-coated membrane/MEA fuel-cell cathodeNafion 211 membrane with GDL | p. 15 · Pt3(C12N6O6)2 MOF-modified MEA in fuel cell · Figure S16 |
| Pt3(C12N6O6)2 MOF monolayer modelresearch_0811__mat__pt_o4_mof | Model · Model System · Model | DFT/DFTB monolayer model | p. 7 · 3.3.1 · Fig. 5 |
| Pt3(C12N6O6)2 MOF pressed pelletresearch_0811__mat__pt_o4_mof | Pellet · Target Sample · Pristine Framework | pressed at 20 MPa for four-probe conductivity~259 micrometers | p. 9 · Conductivity of Pt3(C12N6O6)2 MOF · Figure S12 |
| Pt3(C12N6O6)2 MOF black powderresearch_0811__mat__pt_o4_mof | Powder · Target Sample · Pristine Framework | centrifuged, washed, vacuum dried overnight at 120 C | p. 3 · 2.4 |
| Pt3(C12N6O6)2 MOF thin film on Siresearch_0811__mat__pt_o4_mof | Thin Film · Target Sample · Pristine Framework | thin film used for 2D GIXDSi | p. 5 · 3.1 · Fig. 3a |
| 20 wt% Pt/C RRDE electroderesearch_0811__mat__commercial_ptc | Electrode · Pristine Control · Composite | commercial Pt/C ink prepared with same procedureglassy carbon RRDE | p. 3 · 2.6 |