Zhu W., Zhang C., Li Q. et al. · Applied Catalysis B: Environmental · 2018 · 339-345
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.
Control and isotope experiments support CO2 as the source of produced CO rather than TEOA or other organic reagents.
main p.6, article p.344 · Results and discussion · Figure S13 · Linked to 2 structured results
The Ni3(HITP)2 nanosheet hybrid photocatalytic system selectively reduces CO2 to CO under visible light, producing 207 umol CO, 7.49 umol H2, a 3.45 x 10^4 umol g-1 h-1 CO rate and 97% selectivity over 3 h.
Caveat: Application result depends on a composite photocatalytic mixture rather than a standalone electronic device.
main p.4, article p.342 · Results and discussion · Fig. 3a · Linked to 8 structured results
Ni3(HITP)2 shows photocatalytic cycling stability over six cycles and maintains structural integrity by PXRD and XPS before and after photocatalysis.
Caveat: SI figures S8 and S9 are caption-only in the provided SI text, so spectra/pattern overlays cannot be independently read.
main p.4, article p.342 · Results and discussion · Fig. 3b, Figures S8-S9 · Linked to 1 structured result
PXRD, XPS, Raman and FTIR validate the structure and purity of the obtained Ni3(HITP)2 black powder, with no evident NiO, Ni(OH)2 or metallic Ni impurities.
Caveat: Core peak positions are reported in text or SI rendered figures; structural assignment remains authors' phase assignment, not independently refitted here.
main p.3, article p.341 · Results and discussion · Fig. 1 and Figures S1-S2 · Linked to 8 structured results
Exfoliated few-layer Ni3(HITP)2 nanosheets provide more accessible sites and outperform unexfoliated bulk Ni3(HITP)2 for photocatalytic CO generation.
Caveat: Bulk-control amount produced is calculated from the reported mass-normalised rate; the figure trend supports the comparison.
main p.6, article p.344 · Results and discussion · Figure S15 · Linked to 4 structured results
Ni3(HITP)2 acts as an electron reservoir: photogenerated electrons from [Ru(bpy)3]2+ transfer into and disperse through the conductive/metallic MOF, promoting CO2 reduction at Ni-N4 sites.
Caveat: Transport conductivity values are literature-cited rather than first-hand in this paper; mechanistic assignment is inferred from PL quenching, UPS and application controls.
main p.6, article p.344 · Results and discussion · Scheme 1 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Ni3(HITP)2 conductive two-dimensional metal-organic frameworkBrowse family: Ni₃(HITP)₂ / Ni–HITP | Ni3(HITP)2Ni2+ centres in square-planar Ni-N4 coordination units. · HITP, 2,3,6,7,10,11-hexaaminotriphenylene. | 2D · PristineStacked honeycomb 2D conductive MOF; PXRD matches eclipsed or slipped-parallel stacked 2D sheets and XPS supports a single Ni-N4 four-coordinate structure. | main p.2, article p.340 · Introduction · Fig. 1a |
| Ni3(HITP)2/[Ru(bpy)3]2+ hybrid photocatalytic CO2-reduction systemBrowse family: Ni₃(HITP)₂ / Ni–HITP | Not specifiedNi-N4 sites in Ni3(HITP)2 plus Ru polypyridyl photosensitiser. · HITP in Ni3(HITP)2; bpy ligands in [Ru(bpy)3]2+. | unknown · CompositeApplication mixture, not a new crystalline MOF phase: Ni3(HITP)2 nanosheet co-catalyst, [Ru(bpy)3]Cl2.6H2O photosensitiser and TEOA electron donor in MeCN/H2O. | main p.1, article p.339 · Abstract |
| Non-MOF photocatalytic control systems | Not specifiedNone or non-framework Ni2+ control species, depending on control. · HATP/HITP-related ligand control where tested. | unknown · Model SystemControl mixtures lacking the complete Ni3(HITP)2 conductive MOF framework. | main p.5, article p.343 · Results and discussion · Figures S10 and S11 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Bulk Ni3(HITP)2 black powderresearch_0042__mat__ni3_hitp2 | Powder · Pristine Control · Pristine Framework | Aqueous synthesis followed by water reflux, acetone reflux and vacuum drying at 150 C for 12 h. | main p.3, article p.341 · 2.2.2. Synthesis of Ni3(HITP)2 nanosheets |
| Literature Ni3(HITP)2 FET deviceresearch_0042__mat__ni3_hitp2 | Thin Film · Paper Level Unspecified · Pristine Framework | Not prepared in this paper; cited background FET sample. | main p.2, article p.340 · Introduction |
| Literature Ni3(HITP)2 polycrystalline filmresearch_0042__mat__ni3_hitp2 | Thin Film · Paper Level Unspecified · Pristine Framework | Not prepared in this paper; cited background conductivity sample. | main p.2, article p.340 · Introduction |
| Literature Ni3(HITP)2 pressed pelletresearch_0042__mat__ni3_hitp2 | Pellet · Paper Level Unspecified · Pristine Framework | Not prepared in this paper; cited background conductivity sample. | main p.2, article p.340 · Introduction |
| Ni3(HITP)2/carbon black/Nafion carbon-paper electroderesearch_0042__mat__ni3_hitp2 | Electrode · Composite Sample · Composite | Ink from 1 mg Ni3(HITP)2, 0.25 mL ethanol, 50 uL Nafion solution and 0.5 mg Ketjen black sonicated 60 min, painted on carbon paper and oven dried.Carbon paper, 1 cm2. | main p.3, article p.341 · 2.5. Electrochemical measurements · Figure S12 |
| Exfoliated Ni3(HITP)2 nanosheetsresearch_0042__mat__ni3_hitp2 | Nanosheet · Target Sample · Pristine Framework | 30 mg bulk Ni3(HITP)2 dispersed in 15 mL acetonitrile and sonicated for 24 h.Deposited on silicon wafer/substrate for SEM and AFM characterisation. · 4.2 +/- 0.3 nm from AFM height profile. | main p.3, article p.341 · 2.2.2. Synthesis of Ni3(HITP)2 nanosheets · Fig. 2c |
| Bulk Ni3(HITP)2/[Ru(bpy)3]2+ photocatalytic control mixtureresearch_0042__mat__ni3_hitp2_ru_photocatalytic_system | Powder · Pristine Control · Composite | Unexfoliated bulk Ni3(HITP)2 powder used instead of nanosheets under otherwise similar photocatalytic conditions.Petri dish photoreactor. | main p.6, article p.344 · Results and discussion · Figure S15 |
| Photocatalytic control mixtures lacking one active componentresearch_0042__mat__photocatalytic_control_systems | Unknown · Model System · Model | Controls include no Ni3(HITP)2, no photosensitiser, no irradiation, no CO2, Ni2+ ions and HATP/HITP-related ligand controls under comparable MeCN/H2O/TEOA conditions.Petri dish photoreactor. | main p.5, article p.343 · Results and discussion · Figures S10 and S11 |
| Ni3(HITP)2 nanosheet/[Ru(bpy)3]Cl2.6H2O photocatalytic mixtureresearch_0042__mat__ni3_hitp2_ru_photocatalytic_system | Unknown · Composite Sample · Composite | 2 mg Ni3(HITP)2 and 80 mg [Ru(bpy)3]Cl2.6H2O dispersed by ultrasound in 16 mL TEOA/H2O/MeCN (4/2/10 mL), under 80 kPa CO2 at 4 C, irradiated by 100 W 420 nm LED.Petri dish in Pyrex photoreactor. | main p.3, article p.341 · 2.4. Photocatalytic activity evaluation · Fig. 3 |