Primary studyCore evidenceTransport Physics

Supramolecular Host-Guest Assembly Based on Phosphotungstate Nanostructures for Pseudocapacitive and Electrochemical Sensing Applications

Yang A.-S., Cui L.-P., Yu K. et al. · ACS Applied Nano Materials · 2022 · 10452-10461

3materials
9samples
9synthesis routes
26measurements
123results
5claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: High

2-GCE acts as a bifunctional sensor for H2O2 reduction and AA oxidation in PBS, with low detection limits and broad linear ranges.

Caveat: Sensor is electrode-level 2-GCE in PBS; electrode contains activated carbon/Nafion.

10457-10458 (PDF pp.6-7) · Bifunctional Electrocatalytic Properties · Figure 7; Figure S21 · Linked to 4 structured results

CaveatSupport assessment: High

The paper reports electrochemical/EIS evidence for improved ion/electron transport but does not report intrinsic bulk conductivity, thermoelectric data, or porosity/gas-sorption metrics.

Caveat: The assignment category is core_transport_physics, but transport data are application-electrode proxies.

10455-10458 (PDF pp.4-7) · Capacitive Properties; Conclusion · Figures 4f, 5h · Linked to 2 structured results

Phase AssignmentSupport assessment: High

Compound 2 is a 3D supramolecular host-guest hybrid in which Na-linked {P2W18O62} dipolymers are embedded in an Ag-bipy metal-organic mesh with irregular cavities.

Caveat: Compound 2 is described as a supramolecular host-guest hybrid/metal-organic framework; no porosity/gas sorption measurement is reported.

10454 (PDF p.3) · Structural Description · Figure 2f · Linked to 5 structured results

Structure Property LinkSupport assessment: High

Compound 2 electrodes show the highest specific capacitance and cycling retention among the precursor, compound 1 and compound 2, attributed to multinuclear Ag complexes, host-guest structure and pi-pi interactions.

Caveat: Performance is electrode-level; active material is mixed with activated carbon/Nafion for GCE and CPE measurements.

10455-10457 (PDF pp.4-6) · Capacitive Properties · Figures 4 and 5 · Linked to 4 structured results

Transport MechanismSupport assessment: Medium

Lower EIS resistance for 2-GCE/CPE is interpreted as improved ion/electron transport efficiency and better electrical conductivity relative to compound 1 and the POM precursor.

Caveat: EIS is an electrode-level proxy; no intrinsic bulk electronic conductivity or thermoelectric measurement is reported.

10455 and 10457 (PDF pp.4,6) · Capacitive Properties · Figures 4f and 5h · Linked to 3 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
Compound 1 bip-modified Dawson phosphotungstate supramolecular hybrid(H2bip)2{H2P2W18O62}.2H2O; CIF formula C22H36N8O64P2W18Dawson {P2W18O62} polyoxometalate cluster; no Ag in final formula · bip = 1,5-bis(imidazole-1-yl)pentane, protonated3D · Pristinebip ligand modified 4,8-connected supramolecular net with {4^15;6^12;8}{4^5;6}2 topology assembled by weak interactions.10452-10454 (PDF pp.1-3) · Abstract; Structural Description · Figure 1
Compound 2 Ag-bipy Dawson phosphotungstate host-guest supramolecular hybrid(bipy)0.5{Ag(bipy)2}{Ag4(bipy)7}{NaP2W18O62}.H2O; CIF formula C96H78Ag5N19NaO63P2W18Ag mononuclear {Ag(bipy)2} and tetranuclear {Ag4(bipy)7} complexes; Na-linked Dawson {P2W18O62} dimer guest · bipy = 2,2'-bipyridine3D · Composite3D metal-organic host mesh built from alternating Ag-bipy chains A and B with irregular cavities; Na-linked Dawson dipolymers are embedded as guest units.10452-10454 (PDF pp.1-3) · Abstract; Structural Description · Figure 2
Dawson-type phosphotungstate precursoralpha-K6[P2W18O62].14H2O; electrode control denoted {P2W18O62}W centres in Dawson-type phosphotungstate cluster0D · PristineNanoscale Dawson-type POM precursor/control used to prepare and benchmark the supramolecular hybrids.S2 · Experimental Section; General Methods and Materials

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 9 sample records
SampleForm and roleProcessing and geometrySource
1-CPEresearch_0558__mat__mat_compound1Electrode · Pristine Control · CompositeCompound and activated carbon ground at 1:3 for about 30 min; 8 mg dispersed in 200 uL ethyl alcohol/DI water (3:1) plus 10 uL Nafion; 100 uL slurry drop-cast onto 1 x 1 cm2 carbon paper and dried under vacuum at 60 C for 2 h.carbon paper electrode · active material loading about 1 mg on 1 x 1 cm2 carbon paperS5 · Preparation of the Electrodes
1-GCEresearch_0558__mat__mat_compound1Electrode · Pristine Control · CompositeGCE polished, rinsed, drop-cast with 5 uL slurry of active material plus activated carbon in ethyl alcohol/DI water, dried 2 h at room temperature, then overcoated with 5 uL Nafion and dried.glassy carbon electrodeS4-S5 · Preparation of the Electrodes
2-CPEresearch_0558__mat__mat_compound2Electrode · Target Sample · CompositeCompound and activated carbon ground at 1:3 for about 30 min; 8 mg dispersed in 200 uL ethyl alcohol/DI water (3:1) plus 10 uL Nafion; 100 uL slurry drop-cast onto 1 x 1 cm2 carbon paper and dried under vacuum at 60 C for 2 h.carbon paper electrode · active material loading about 1 mg on 1 x 1 cm2 carbon paperS5 · Preparation of the Electrodes
2-GCEresearch_0558__mat__mat_compound2Electrode · Target Sample · CompositeGCE polished, rinsed, drop-cast with 5 uL slurry of active material plus activated carbon in ethyl alcohol/DI water, dried 2 h at room temperature, then overcoated with 5 uL Nafion and dried.glassy carbon electrodeS4-S5 · Preparation of the Electrodes
Compound 1research_0558__mat__mat_compound1Single Crystal · Pristine Control · Pristine FrameworkBlue crystals isolated by filtration after hydrothermal synthesis, washed with distilled water, and dried at room temperature.S3-S4 · Experimental Section; Synthesis of compounds 1-2
Compound 2research_0558__mat__mat_compound2Single Crystal · Target Sample · Guest LoadedYellow crystals isolated by filtration after hydrothermal synthesis, washed with distilled water, and dried at room temperature.S4 · Experimental Section; Synthesis of compounds 1-2
{P2W18O62} precursor/controlresearch_0558__mat__mat_p2w18_precursorPowder · Pristine Control · Pristine FrameworkDawson phosphotungstate precursor/control prepared according to a literature method and verified by IR.S2 · Experimental Section; General Methods and Materials
{P2W18O62}-CPEresearch_0558__mat__mat_p2w18_precursorElectrode · Pristine Control · CompositeCompound and activated carbon ground at 1:3 for about 30 min; 8 mg dispersed in 200 uL ethyl alcohol/DI water (3:1) plus 10 uL Nafion; 100 uL slurry drop-cast onto 1 x 1 cm2 carbon paper and dried under vacuum at 60 C for 2 h.carbon paper electrode · active material loading about 1 mg on 1 x 1 cm2 carbon paperS5 · Preparation of the Electrodes
{P2W18O62}-GCEresearch_0558__mat__mat_p2w18_precursorElectrode · Pristine Control · CompositeGCE polished, rinsed, drop-cast with 5 uL slurry of active material plus activated carbon in ethyl alcohol/DI water, dried 2 h at room temperature, then overcoated with 5 uL Nafion and dried.glassy carbon electrodeS4-S5 · Preparation of the Electrodes