Zhao Q., Jiang J., Zhao W. et al. · Journal of Physical Chemistry C · 2021 · 12690-12698
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 truxone-Cu MOF-modified GC electrode catalyses ORR in alkaline electrolyte, with 0.79 V vs RHE onset at -50 uA cm-2, about 3.6 electron transfer number, and 80.5% current retention after 10000 s.
Caveat: Application sample is a MOF/Nafion/GC composite electrode; Pt/C comparison is qualitative in the extracted text.
p006-p007 / article pp.12695-12696 · Results and Discussion · Figure 5; Figures S30-S34 · Linked to 5 structured results
Experimental PXRD and simulated patterns support an AA-stacked hexagonal truxone-Cu MOF rather than AB-staggered stacking.
Caveat: No CIF/local crystallographic file was provided in the assignment; assignment relies on paper figures and text.
p004 / article p.12693 · Results and Discussion · Figure 1 · Linked to 5 structured results
Cu complexation of the truxone ligand extends absorption into the NIR, consistent with expanded electron delocalisation.
Caveat: Optical band gap was read from a figure inset; the delocalisation statement is qualitative.
p005 / article p.12694 · Results and Discussion · Figure 2d · Linked to 3 structured results
Charge hopping across grain boundaries is proposed as the limiting step in electrical transport.
Caveat: Mechanistic interpretation inferred from similarity between grain-boundary and total activation energies.
p005 / article p.12694 · Results and Discussion · Figures S25-S26 · Linked to 2 structured results
Truxone-Cu behaves as a semiconductor, with conductivity increasing exponentially with temperature and activation energies of 0.35 eV total, 0.24 eV grain and 0.33 eV grain-boundary.
Caveat: Pressed pellet measurements include contact and grain-boundary effects; the main conductivity benchmark uses EIS-fitted grain conductivity.
p005 / article p.12694 · Results and Discussion · Figures 3, S23-S26 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| bare glassy carbon electrode | C | unknown · UnknownBare GC electrode control. | p006 / article p.12695 · Results and Discussion · Figure 5a,b |
| 5,6-dibutoxy-1-indanone | Not specifiednone · Organic precursor for truxone ligand synthesis. | 0D · UnknownIntermediate 3 in Scheme S1. | p002 / article p.12691 · Experimental Section |
| 5,6-dihydroxy-1-indanone | Not specifiednone · Organic precursor for truxone ligand synthesis. | 0D · UnknownIntermediate 2 in Scheme S1. | p002 / article p.12691 · Experimental Section |
| 2,3,7,8,12,13-hexabutoxyl truxene | Not specifiednone · Protected truxene precursor. | 0D · UnknownOrganic precursor oxidised to hexabutoxyl truxone. | p002 / article p.12691 · Experimental Section |
| 2,3,7,8,12,13-hexabutoxyl truxone | Not specifiednone · Protected truxone precursor. | 0D · UnknownOrganic precursor deprotected to hexahydroxyl truxone. | p002 / article p.12691 · Experimental Section |
| 2,3,7,8,12,13-hexahydroxyl truxone | C27H12O9none · C3v-symmetric truxone catechol ligand precursor. | 0D · UnknownMolecular linker used to construct truxone-Cu MOF. | p003 / article p.12692 · Results and Discussion · Scheme S1; Figures S1-S7 |
| 10% Pt/C | Pt/CPt nanoparticles on carbon. | unknown · CompositeCommercial Pt/C ORR benchmark. | S29 · Electrical ORR performance of the truxone-Cu MOF · Figures S30-S32 |
| truxene-Cu MOF | Not specifiedCopper coordination framework. · 2,3,7,8,12,13-hexahydroxyl truxene-related linker from prior work. | 2D · PristinePreviously reported truxene-based conductive MOF with similar structure. | p006 / article p.12695 · Results and Discussion |
| truxone-Cu MOF | (C27O9)2Cu3 / model monolayer (C27H6O9)2Cu3Copper bis(catecholate) coordination units with mixed Cu(I)/Cu(II) signatures by XPS. · 2,3,7,8,12,13-hexahydroxyl truxone. | 2D · PristinePi-d conjugated conductive MOF with Kagome lattice, hexagonal AA-stacked layered structure; reported unit cell a = b = 26.6 Angstrom and c = 3.3 Angstrom. | p001 / article p.12690 · Abstract |
| truxone-Cu monolayer model | (C27H6O9)2Cu3Cu sites in minimum periodic truxone-Cu unit. · Truxone catecholate ligand in monolayer model. | 2D · Model SystemDFT minimum periodic unit for electronic band structure, DOS, charge density and Bader analysis. | p003 / article p.12692 · Methods |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| bare GC electroderesearch_0209__mat__mat_bare_gc | Electrode · Pristine Control · Unknown | Bare GC electrode tested in O2 as ORR control.glassy carbon electrode | p006 / article p.12695 · Results and Discussion · Figure 5 |
| 5,6-dibutoxy-1-indanone productresearch_0209__mat__mat_dibutoxy_indanone | Powder · Paper Level Unspecified · Unknown | Product after butylation and column chromatography. | p002 / article p.12691 · Experimental Section · Figure S2 |
| 5,6-dihydroxy-1-indanone productresearch_0209__mat__mat_dihydroxy_indanone | Powder · Paper Level Unspecified · Unknown | Salmon pink powder obtained after BBr3 demethylation, filtration, washing and drying under reduced pressure. | p002 / article p.12691 · Experimental Section · Figure S1 |
| 2,3,7,8,12,13-hexabutoxyl truxene productresearch_0209__mat__mat_hexabutoxy_truxene | Powder · Paper Level Unspecified · Unknown | Faint yellow solid obtained after reflux condensation and column chromatography. | p002 / article p.12691 · Experimental Section · Figure S3 |
| 2,3,7,8,12,13-hexabutoxyl truxone productresearch_0209__mat__mat_hexabutoxy_truxone | Powder · Paper Level Unspecified · Unknown | Oxidised protected truxone product after NaHCO3 quench, extraction and chromatography. | p002 / article p.12691 · Experimental Section · Figure S4 |
| 2,3,7,8,12,13-hexahydroxyl truxone linkerresearch_0209__mat__mat_hexahydroxy_truxone | Powder · Paper Level Unspecified · Unknown | Dark red solid obtained by BBr3 deprotection and filtration. | p002 / article p.12691 · Experimental Section · Figures S5-S7 |
| 10% Pt/C modified RDEresearch_0209__mat__mat_ptc | Electrode · Pristine Control · Composite | 10% Pt/C modified RDE tested at rotating speeds from 500 to 2500 rpm in 0.1 M KOH.rotating disk electrode | S29 · Electrical ORR performance · Figure S30 |
| truxene-Cu MOF modified electrode controlresearch_0209__mat__mat_truxene_cu_control | Electrode · Pristine Control · Composite | Prepared for same ORR conditions as truxone-Cu MOF; exact preparation refers to prior ref 34.glassy carbon electrode | p006 / article p.12695 · Results and Discussion |
| truxone-Cu MOF-modified GC electroderesearch_0209__mat__mat_truxone_cu | Electrode · Target Sample · Composite | 1.0 mg MOF plus 5 uL of 5% Nafion dispersed in water:isopropanol 1:1; 10 uL suspension dropped on RDE and dried at room temperature.glassy carbon RDE, 5 mm diameter | S28 · Electrical ORR performance of the truxone-Cu MOF |
| monolayer (C27H6O9)2Cu3 DFT modelresearch_0209__mat__mat_truxone_cu_model | Model · Model System · Model | Periodic monolayer model optimised in VASP using PBE GGA, plane-wave cutoff 800 eV, 4 x 4 x 1 k-point grid, and DFT+U tests. | p003 / article p.12692 · Methods |
| pressed truxone-Cu MOF pelletresearch_0209__mat__mat_truxone_cu | Pellet · Target Sample · Pristine Framework | Bulk powder compressed with two stainless steel rods; sample pretreated at 150 deg C to remove water before conductivity testing.L = 1.89 x 10-3 m; diameter = 5.08 x 10-3 m; area = 2.03 x 10-5 m2 | p005 / article p.12694 · Results and Discussion · Figures S20-S22 |
| truxone-Cu MOF powder/nanosheetsresearch_0209__mat__mat_truxone_cu | Powder · Target Sample · Pristine Framework | Liquid-liquid interfacial polymerisation product, washed with water, ethyl acetate and acetone, then vacuum dried at 85 deg C for 24 h. | S10 · Synthesis of the truxone-Cu based MOF · Scheme S2; Figure S8 |