Liu M., Wei J., Lin S.-J. et al. · ACS Applied Electronic Materials · 2024 · 2375-2382
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 Co-HHTP host-guest strategy broadens conductive MOF use in luminol/dissolved oxygen ECL systems and provides evidence for host-guest interaction design in ECL materials.
Caveat: Application focus is ECL signal generation rather than standalone electrical transport device performance.
7 · 4. Conclusions · Linked to 3 structured results
Negatively charged Co-HHTP pores attract and encapsulate positively charged, size-matched luminol, increasing ECL through enhanced charge transfer and luminol enrichment.
Caveat: SI supports pore/guest-size matching and post-loading characterisation; some SI values are graphical estimates from rendered figures.
5,7 · 3.2 ECL Performance; Conclusions · Figures 3E-H; SI figures cited · Linked to 11 structured results
Co-HHTP was successfully prepared as a crystalline layered/lamellar framework with Co-O bonding and XRD peaks assigned to (200), (210), and (002) facets.
Caveat: SI figures were checked; no CIF was supplied, so crystallographic assignment follows reported XRD/HR-TEM evidence.
4 · 3.1 Physical Characterization · Figure 1 · Linked to 6 structured results
The stronger ECL response of Co-HHTP relative to Ni-HHTP and HHTP is attributed to its superior electrical conductivity and lower impedance, which facilitate charge transfer.
Caveat: No direct conductivity value is reported; evidence is based on EIS and ECL/CV comparisons.
5 · 3.2 ECL Performance · Figure 3A-B · Linked to 5 structured results
Combining cathodic dissolved-oxygen reduction at negative potentials with anodic luminol oxidation at positive potentials produces a robust Co-HHTP-mediated luminol ECL signal.
Caveat: Mechanistic ROS assignments rely partly on quencher interpretation; SI stepped-pulse optimisation supports -0.5 V as the strongest initial-potential condition.
5-6 · 3.2 ECL Performance; 3.3 Possible Enhancement Mechanism · Figures 2 and 4 · Linked to 9 structured results
Dissolved oxygen is essential for amplified ECL because N2-saturated solution gives no discernible signal whereas air-saturated solution gives strong ECL.
Caveat: Air/N2 gas purging conditions are not detailed in the main text.
5 · 3.2 ECL Performance · Figure 2C · Linked to 2 structured results
Both hydroxyl and superoxide radicals are implicated, with superoxide playing a crucial role in Co-HHTP/luminol ECL emission.
Caveat: The text layer wording appears inconsistent with the rendered Figure 4D bar chart for BQ; extracted figure values indicate BQ strongly suppresses ECL.
6 · 3.3 Possible Enhancement Mechanism · Figure 4C-D · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-HHTP conductive metal-organic frameworkBrowse family: Co₃(HHTP)₂ / Co–HHTP | Co-HHTP; HHTP = 2,3,6,7,10,11-hexahydroxytriphenyleneCo nodes coordinated by oxygen donor sites of HHTP; Co-O bond confirmed by FTIR/XPS. · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 2D · PristineLayered/lamellar conductive MOF with hexagonal honeycomb lattice; XRD peaks assigned to (200), (210), and (002) facets. | 1 · Abstract |
| HHTP organic control | 2,3,6,7,10,11-hexahydroxytriphenylenenone · HHTP molecule | 0D · Model SystemNonporous/non-MOF control; main text states HHTP lacks pores for dye adsorption comparison. | 5 · Results and Discussion · Figure S3 cited |
| luminol@Co-HHTPBrowse family: Co₃(HHTP)₂ / Co–HHTP | luminol-loaded Co-HHTP host-guest constructCo nodes in Co-HHTP host framework. · HHTP framework linker plus luminol guest molecules. | 2D · CompositeGuest-loaded Co-HHTP; main text reports retained lamellar structure and preserved diffraction peak positions after encapsulation based on SI figures. | 5 · Results and Discussion · Figure S5-S9 cited |
| luminol@Ni-HHTPBrowse family: Ni₃(HHTP)₂ / Ni–HHTP | luminol-loaded Ni-HHTP host-guest constructNi nodes in Ni-HHTP host framework. · HHTP framework linker plus luminol guest molecules. | 2D · CompositeGuest-loaded Ni-HHTP comparator, synthesised by the same luminol@M-HHTP route and used in ECL/EIS comparison. | 4 · Figure caption · Figure 3H-I |
| Ni-HHTP conductive metal-organic frameworkBrowse family: Ni₃(HHTP)₂ / Ni–HHTP | Ni-HHTP; HHTP = 2,3,6,7,10,11-hexahydroxytriphenyleneNi nodes from Ni(OAc)2 precursor coordinated to HHTP. · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 2D · PristinePrepared by the same M-HHTP hydrothermal route; used as structurally similar comparator to Co-HHTP. | 3 · Materials and Methods |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Co-HHTP-modified glassy carbon electroderesearch_0123__mat__mat_co_hhtp | Electrode · Target Sample · Composite | 1 mg catalyst dispersed in water/ethanol/Nafion, sonicated 40 min, 5 uL drop-cast on glassy carbon electrode.glassy carbon electrode, diameter 5 mm; Nafion-containing catalyst film · 5 uL of catalyst suspension drop-cast; thickness not reported | 3 · 2.4. Electrochemical and ECL Measurements |
| Co-HHTP powderresearch_0123__mat__mat_co_hhtp | Powder · Target Sample · Pristine Framework | Hydrothermal synthesis, centrifuged, washed with water/acetone, dried at room temperature.none | 3 · 2.1. Synthesis of M-HHTP |
| HHTP-modified glassy carbon electrode controlresearch_0123__mat__mat_hhtp_control | Electrode · Model System · Composite | Prepared analogously for HHTP comparison measurements.glassy carbon electrode with Nafion-containing film · not reported | 4 · Figure caption · Figure 3A-C |
| luminol@Co-HHTP-modified glassy carbon electroderesearch_0123__mat__mat_luminol_co_hhtp | Electrode · Composite Sample · Composite | Guest-loaded powder applied to glassy carbon electrode by the catalyst suspension/drop-casting method.glassy carbon electrode with Nafion-containing guest-loaded catalyst film · not reported | 4 · Figure caption · Figure 3H-I |
| luminol@Co-HHTP powderresearch_0123__mat__mat_luminol_co_hhtp | Powder · Composite Sample · Guest Loaded | Co-HHTP stirred with luminol solution for 12 h at room temperature, centrifuged, washed with methanol, dried.none | 3 · 2.2. Synthesis of Luminol@M-HHTP |
| luminol@Ni-HHTP-modified glassy carbon electroderesearch_0123__mat__mat_luminol_ni_hhtp | Electrode · Composite Sample · Composite | Guest-loaded powder applied to glassy carbon electrode by the catalyst suspension/drop-casting method.glassy carbon electrode with Nafion-containing guest-loaded catalyst film · not reported | 4 · Figure caption · Figure 3H-I |
| luminol@Ni-HHTP powderresearch_0123__mat__mat_luminol_ni_hhtp | Powder · Composite Sample · Guest Loaded | Ni-HHTP stirred with luminol solution under the same luminol@M-HHTP protocol.none | 3 · 2.2. Synthesis of Luminol@M-HHTP |
| Ni-HHTP-modified glassy carbon electroderesearch_0123__mat__mat_ni_hhtp | Electrode · Pristine Control · Composite | Prepared using the same catalyst-modified GCE protocol for M-HHTP comparison.glassy carbon electrode with Nafion-containing catalyst film · 5 uL catalyst suspension drop-cast; thickness not reported | 3 · 2.4. Electrochemical and ECL Measurements |
| Ni-HHTP powderresearch_0123__mat__mat_ni_hhtp | Powder · Pristine Control · Pristine Framework | Same hydrothermal M-HHTP route as Co-HHTP with M = Ni.none | 3 · 2.1. Synthesis of M-HHTP |