High-performance hybrid supercapacitors enabled by CoTe@CoFeTe double-shelled nanocubes

7materials

9samples

6synthesis routes

10measurements

60results

5claims and caveats

Evidence map

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

Electrochemistry Application5 measurements34 results →Microscopy Morphology1 measurement9 results →Electrical Transport1 measurement6 results →Spectroscopy1 measurement6 results →Porosity1 measurement4 results →Diffraction Structure1 measurement1 result →

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

The AC//CoTe@CoFeTe hybrid device provides high energy density and stable cycling for supercapacitor applications.

Caveat: Device performance is reported for laboratory-scale cells; raw data and cell dimensions are not supplied in the text layer.

4599 · 3 Results and discussion · Fig. 5 · Linked to 3 structured results

Phase AssignmentSupport assessment: High

XRD, XPS, EDX, and elemental mapping support conversion of the oxide precursor into CoTe@CoFeTe mixed telluride nanocubes.

Caveat: The exact distribution of CoTe versus CoFeTe/FeTe phases within the shells is not independently quantified.

4595 · 3 Results and discussion · Fig. 2 · Linked to 4 structured results

Structure Property LinkSupport assessment: Medium

The double-shelled porous nanocube architecture is proposed to increase electroactive area, shorten ion diffusion pathways, and buffer cycling-induced volume changes.

Caveat: Mechanistic link is plausible and supported by morphology/porosity/electrochemistry but not isolated from composition effects.

4599 · 3 Results and discussion · Linked to 4 structured results

Synthesis MechanismSupport assessment: Medium

A ZIF67/CoFe-PBA precursor formed by anion exchange enables the later annealing and tellurisation route to double-shelled CoTe@CoFeTe nanocubes.

Caveat: The paper reports morphology evolution but does not provide time-resolved mechanistic evidence.

4593 · 3 Results and discussion · Fig. 1a · Linked to 2 structured results

Transport MechanismSupport assessment: Medium

Tellurium incorporation reduces internal and charge-transfer resistance, which the authors interpret as enhanced electrical conductivity and faster charge transfer.

Caveat: Conductivity is inferred from EIS; no direct electronic conductivity measurement was reported.

4595 · 3 Results and discussion · Fig. 3d · Linked to 4 structured results

Material identities

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

Material	Composition	Structure context	Source
AC//CoTe@CoFeTe hybrid supercapacitor	AC//CoTe@CoFeTeCo, Fe	unknown · CompositeTwo-electrode hybrid supercapacitor with AC anode and CoTe@CoFeTe cathode.	4599 · 3 Results and discussion · Fig. 5
Activated carbon	AC	unknown · DerivedCommercial/application anode material with EDLC behaviour.	4593 · 2.7 Electrochemical tests
Co3O4@CoFe2O4 double-shelled nanocubes	Co3O4@CoFe2O4Co, Fe	unknown · DerivedMOF/PBA-derived mixed oxide double-shelled nanocubes.	4592 · 2.4 Fabrication of Co3O4@CoFe2O4
CoTe@CoFeTe double-shelled nanocubes	CoTe@CoFeTeCo, Fe	unknown · DerivedMOF-derived mixed-metal telluride double-shelled nanocubes; CoTe and FeTe phases by XRD.	4593 · 3 Results and discussion · Fig. 1
Nickel foam	NiNi	unknown · PristineBare current collector/control substrate.	4593 · 2.7 Electrochemical tests
ZIF67 nanocubesBrowse family: ZIF-67 / Co(mIm)₂	ZIF-67, cobalt 2-methylimidazolate frameworkCo · 2-methylimidazole (C4H6N2)	3D · PristineZeolitic imidazolate framework nanocubes; cubic morphology assigned by FE-SEM/TEM.	4592 · 2.2 Fabrication of ZIF67 nanocubes
ZIF67@CoFe-PBA nanocubesBrowse family: ZIF-67 / Co(mIm)₂	ZIF67@CoFe-Prussian blue analogueCo, Fe · 2-methylimidazolate and ferricyanide/cyanide framework linkages	3D · CompositeHybrid ZIF/PBA core-shell nanocubes formed by anion exchange with ferricyanide ions.	4592 · 2.3 Fabrication of ZIF67@CoFe-PBA nanocubes

Sample register

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

Show 9 sample records

Sample	Form and role	Processing and geometry	Source
AC//CoTe@CoFeTe deviceresearch_0500__mat__mat_ac_cote_device	Electrode · Composite Sample · Composite	heat-sealed hybrid supercapacitor with cellulose separator and 6 M KOH	4593 · 2.7
Activated carbon electroderesearch_0500__mat__mat_activated_carbon	Electrode · Composite Component · Derived Carbon	AC anode soaked in KOH for hybrid device	4593 · 2.7
Bare nickel foamresearch_0500__mat__mat_nickel_foam	Electrode · Pristine Control · Unknown	bare current collectornickel foam	4595 · 3 Results and discussion · Fig. 3a
Co3O4@CoFe2O4research_0500__mat__mat_co3o4_cofe2o4	Powder · Pristine Control · Mixed Metal	annealed mixed oxide nanocubes	4592 · 2.4
control electrodes on nickel foamresearch_0500__mat__mat_nickel_foam	Electrode · Pristine Control · Composite	ZIF67, ZIF67@CoFe-PBA, or Co3O4@CoFe2O4 slurry electrodesnickel foam	4593 · 2.7
CoTe@CoFeTe working electroderesearch_0500__mat__mat_cote_cofete	Electrode · Target Sample · Composite	product/acetylene black/PTFE slurry on nickel foamnickel foam	4593 · 2.7
CoTe@CoFeTeresearch_0500__mat__mat_cote_cofete	Powder · Target Sample · Mixed Metal	tellurised double-shelled nanocubes	4592 · 2.5
ZIF67@CoFe-PBA nanocubesresearch_0500__mat__mat_zif67_cofe_pba	Powder · Pristine Control · Composite	anion-exchanged ZIF/PBA nanocubes	4592 · 2.3
ZIF67 nanocubesresearch_0500__mat__mat_zif67	Powder · Pristine Control · Pristine Framework	as-synthesised nanocubes	4592 · 2.2