Electrochemistry Application — Enhanced conductivity and energy storing performances of 3D bimetallic conductive metal-organic frameworks based on linear π-conjugated thiazole for supercapacitors

11 measurement groups · 63 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

Two-electrode ASC CV, GCD and EIS on CHI760e

Impedance spectroscopy Voltammetry Galvanostatic cycling

Ni3Co1-DPTTZ-MOF//AC ASC device · Electrode

3.0 M KOH electrolyte; CV from 0.0-1.0 to 0.0-1.5 V; scan rates 10-100 mV s-1; GCD 1-10 A g-1; EIS 0.01-100 kHz at open-circuit voltage

Geometry: Ni3Co1-DPTTZ-MOF positive electrode and activated carbon negative electrode; glass microfiber separator
Context: application device using pristine conductive MOF cathode
Measurement source: 3 · 2.5 · Fig. 8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Activated carbon anode specific capacitance	150 F g-1 at 1 A g-1	—	—	Text Exact Reported	3 · 2.5 · Fig. S25 referenced
Ni3Co1-DPTTZ-MOF//AC ASC capacitance retention after 5000 cycles	83.9 % after 5000 cycles at 5 A g-1	—	—	Text Exact Reported	9 · 3.2 · Fig. 8e
Ni3Co1-DPTTZ-MOF (~2 mg cm-2)//AC ASC energy densityMarked as a best value within this paper	26.25 Wh kg-1 at 752.6 W kg-1	—	—	Text Exact Reported	11 · 3.2. Electrochemical characterization · Fig. S26
Ni3Co1-DPTTZ-MOF (~1 mg cm-2)//AC ASC energy density	25.6 Wh kg-1 at 751.9 W kg-1	—	—	Text Exact Reported	11 · 3.2 · Fig. 8f
ASC positive-to-negative electrode mass ratio	1:1.6	—	—	Text Exact Reported	3 · 2.5
Ni3Co1-DPTTZ-MOF (~2 mg cm-2)//AC ASC power density paired with 26.25 Wh kg-1Marked as a best value within this paper	752.6 W kg-1	—	—	Text Exact Reported	11 · 3.2. Electrochemical characterization · Fig. S26
Ni3Co1-DPTTZ-MOF (~1 mg cm-2)//AC ASC power density paired with 25.6 Wh kg-1	751.9 W kg-1	—	—	Text Exact Reported	11 · 3.2 · Fig. 8f
Ni3Co1-DPTTZ-MOF//AC ASC charge-transfer resistance Rct	Rct = 1.52 ohm	—	—	Text Exact Reported	9 · 3.2 · Fig. 8d
Ni3Co1-DPTTZ-MOF//AC ASC series resistance Rs	Rs = 1.64 ohm	—	—	Text Exact Reported	9 · 3.2 · Fig. 8d
Ni3Co1-DPTTZ-MOF//AC ASC specific capacitance at 1 A g-1	82.07 F g-1 at 1 A g-1	—	—	Text Exact Reported	9 · 3.2 · Fig. 8c
Maximum ASC CV voltage window	0.0 to 1.5 V	—	—	Text Exact Reported	9 · 3.2 · Fig. 8a
AC//AC symmetric supercapacitor energy density comparison	AC//AC = 6 Wh kg-1	—	—	SI Table Exact Reported	S27 · Table S4 · Table S4

Power-law CV analysis and capacitive/diffusion contribution fitting

Voltammetry

Co-DPTTZ-MOF nickel-foam working electrode · Electrode

Surface-capacitance and diffusion-control contributions calculated from CV data at 10-70 mV s-1.

Atmosphere: 3 M KOH electrolyte
Geometry: three-electrode nickel-foam working electrode
Context: MOF/PVDF/Ketjen Black composite coating on nickel foam
Measurement source: S15 · Figure S16 · Figure S16

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co-DPTTZ-MOF power-law b value	b = 0.49; R2 = 0.939	—	—	Figure Axis Rounded Reported	S15 · Figure S16 · Figure S16
Co-DPTTZ-MOF power-law fit R2	R2 = 0.939	—	—	Figure Axis Rounded Reported	S15 · Figure S16 · Figure S16
Co-DPTTZ-MOF surface-capacitance contribution at 10 mV s-1	28.9 % at 10 mV s-1	—	—	Figure Axis Rounded Reported	S15 · Figure S16 · Figure S16
Co-DPTTZ-MOF surface-capacitance contribution at 20 mV s-1	35.3 % at 20 mV s-1	—	—	Figure Axis Rounded Reported	S15 · Figure S16 · Figure S16
Co-DPTTZ-MOF surface-capacitance contribution at 30 mV s-1	35.5 % at 30 mV s-1	—	—	Figure Axis Rounded Reported	S15 · Figure S16 · Figure S16
Co-DPTTZ-MOF surface-capacitance contribution at 50 mV s-1	48.3 % at 50 mV s-1	—	—	Figure Axis Rounded Reported	S15 · Figure S16 · Figure S16
Co-DPTTZ-MOF surface-capacitance contribution at 70 mV s-1	59.4 % at 70 mV s-1	—	—	Figure Axis Rounded Reported	S15 · Figure S16 · Figure S16

Power-law CV analysis and capacitive/diffusion contribution fitting

Voltammetry

Ni-DPTTZ-MOF nickel-foam working electrode · Electrode

Surface-capacitance and diffusion-control contributions calculated from CV data at 10-70 mV s-1.

Atmosphere: 3 M KOH electrolyte
Geometry: three-electrode nickel-foam working electrode
Context: MOF/PVDF/Ketjen Black composite coating on nickel foam
Measurement source: S16 · Figure S17 · Figure S17

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni-DPTTZ-MOF power-law b value	b = 0.47; R2 = 0.974	—	—	Figure Axis Rounded Reported	S16 · Figure S17 · Figure S17
Ni-DPTTZ-MOF power-law fit R2	R2 = 0.974	—	—	Figure Axis Rounded Reported	S16 · Figure S17 · Figure S17
Ni-DPTTZ-MOF surface-capacitance contribution at 10 mV s-1	10 % at 10 mV s-1	—	—	Figure Axis Rounded Reported	S16 · Figure S17 · Figure S17
Ni-DPTTZ-MOF surface-capacitance contribution at 20 mV s-1	12.5 % at 20 mV s-1	—	—	Figure Axis Rounded Reported	S16 · Figure S17 · Figure S17
Ni-DPTTZ-MOF surface-capacitance contribution at 30 mV s-1	16.3 % at 30 mV s-1	—	—	Figure Axis Rounded Reported	S16 · Figure S17 · Figure S17
Ni-DPTTZ-MOF surface-capacitance contribution at 50 mV s-1	24.9 % at 50 mV s-1	—	—	Figure Axis Rounded Reported	S16 · Figure S17 · Figure S17
Ni-DPTTZ-MOF surface-capacitance contribution at 70 mV s-1	33.6 % at 70 mV s-1	—	—	Figure Axis Rounded Reported	S16 · Figure S17 · Figure S17

Power-law CV analysis and capacitive/diffusion contribution fitting

Voltammetry

Ni1Co1-DPTTZ-MOF nickel-foam working electrode · Electrode

Surface-capacitance and diffusion-control contributions calculated from CV data at 10-70 mV s-1.

Atmosphere: 3 M KOH electrolyte
Geometry: three-electrode nickel-foam working electrode
Context: MOF/PVDF/Ketjen Black composite coating on nickel foam
Measurement source: S18 · Figure S19 · Figure S19

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni1Co1-DPTTZ-MOF power-law b value	b = 0.81; R2 = 0.995	—	—	Figure Axis Rounded Reported	S18 · Figure S19 · Figure S19
Ni1Co1-DPTTZ-MOF power-law fit R2	R2 = 0.995	—	—	Figure Axis Rounded Reported	S18 · Figure S19 · Figure S19
Ni1Co1-DPTTZ-MOF surface-capacitance contribution at 10 mV s-1	63 % at 10 mV s-1	—	—	Figure Axis Rounded Reported	S18 · Figure S19 · Figure S19
Ni1Co1-DPTTZ-MOF surface-capacitance contribution at 20 mV s-1	66 % at 20 mV s-1	—	—	Figure Axis Rounded Reported	S18 · Figure S19 · Figure S19
Ni1Co1-DPTTZ-MOF surface-capacitance contribution at 30 mV s-1	70 % at 30 mV s-1	—	—	Figure Axis Rounded Reported	S18 · Figure S19 · Figure S19
Ni1Co1-DPTTZ-MOF surface-capacitance contribution at 50 mV s-1	76 % at 50 mV s-1	—	—	Figure Axis Rounded Reported	S18 · Figure S19 · Figure S19
Ni1Co1-DPTTZ-MOF surface-capacitance contribution at 70 mV s-1	83 % at 70 mV s-1	—	—	Figure Axis Rounded Reported	S18 · Figure S19 · Figure S19

Power-law CV analysis and capacitive/diffusion contribution fitting

Voltammetry

Ni1Co3-DPTTZ-MOF nickel-foam working electrode · Electrode

Surface-capacitance and diffusion-control contributions calculated from CV data at 10-70 mV s-1.

Atmosphere: 3 M KOH electrolyte
Geometry: three-electrode nickel-foam working electrode
Context: MOF/PVDF/Ketjen Black composite coating on nickel foam
Measurement source: S17 · Figure S18 · Figure S18

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni1Co3-DPTTZ-MOF power-law b value	b = 0.86; R2 = 0.998	—	—	Figure Axis Rounded Reported	S17 · Figure S18 · Figure S18
Ni1Co3-DPTTZ-MOF power-law fit R2	R2 = 0.998	—	—	Figure Axis Rounded Reported	S17 · Figure S18 · Figure S18
Ni1Co3-DPTTZ-MOF surface-capacitance contribution at 10 mV s-1	76 % at 10 mV s-1	—	—	Figure Axis Rounded Reported	S17 · Figure S18 · Figure S18
Ni1Co3-DPTTZ-MOF surface-capacitance contribution at 20 mV s-1	82 % at 20 mV s-1	—	—	Figure Axis Rounded Reported	S17 · Figure S18 · Figure S18
Ni1Co3-DPTTZ-MOF surface-capacitance contribution at 30 mV s-1	86 % at 30 mV s-1	—	—	Figure Axis Rounded Reported	S17 · Figure S18 · Figure S18
Ni1Co3-DPTTZ-MOF surface-capacitance contribution at 50 mV s-1	90 % at 50 mV s-1	—	—	Figure Axis Rounded Reported	S17 · Figure S18 · Figure S18
Ni1Co3-DPTTZ-MOF surface-capacitance contribution at 70 mV s-1	97 % at 70 mV s-1	—	—	Figure Axis Rounded Reported	S17 · Figure S18 · Figure S18

Power-law CV analysis and capacitive/diffusion contribution fitting

Voltammetry

Ni3Co1-DPTTZ-MOF nickel-foam working electrode · Electrode

CVs fitted to i = a v^b and i = k1 v + k2 v^1/2 at scan rates 10-70 mV s-1

Geometry: nickel-foam working electrode
Context: composite electrode with pristine MOF active material
Measurement source: 8 · 3.2 · Fig. 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Capacitive contribution at 10 mV s-1	53.6 %	—	—	Text Exact Reported	8 · 3.2 · Fig. 6c
Capacitive contribution at 20 mV s-1	54.4 %	—	—	Text Exact Reported	8 · 3.2 · Fig. 6c
Capacitive contribution at 30 mV s-1	56.9 %	—	—	Text Exact Reported	8 · 3.2 · Fig. 6c
Capacitive contribution at 70 mV s-1Marked as a best value within this paper	87.7 %	—	—	Text Exact Reported	8 · 3.2 · Fig. 6c
Ni3Co1-DPTTZ-MOF power-law b value	b value is 0.65	—	—	Text Exact Reported	8 · 3.2 · Fig. 6a
Ni3Co1-DPTTZ-MOF power-law b value printed in Fig. 6a	b = 0.70; R2 = 0.989 (figure label); main text states b = 0.65	—	—	Figure Axis Rounded Reported	8 · 3.2. Electrochemical characterization · Fig. 6a
Surface-capacitance-controlled contribution at 50 mV s-1	70.1 %	—	—	Text Exact Reported	8 · 3.2 · Fig. 6b

Galvanostatic cycling stability test

Galvanostatic cycling

Co-DPTTZ-MOF nickel-foam working electrode · Electrode

5000 cycles at 5 A g-1 in three-electrode configuration.

Atmosphere: 3 M KOH electrolyte
Geometry: MOF/PVDF/Ketjen Black coating on nickel foam
Context: electrode composite containing pristine MOF active material
Measurement source: 8 · 3.2. Electrochemical characterization · Fig. 6d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co-DPTTZ-MOF electrode capacitance retention after 5000 cycles	76.5 % after 5000 cycles at 5 A g-1 (from Fig. 6d label)	—	—	Figure Axis Rounded Reported	8 · 3.2. Electrochemical characterization · Fig. 6d

Galvanostatic cycling stability test

Galvanostatic cycling

Ni-DPTTZ-MOF nickel-foam working electrode · Electrode

5000 cycles at 5 A g-1 in three-electrode configuration.

Atmosphere: 3 M KOH electrolyte
Geometry: MOF/PVDF/Ketjen Black coating on nickel foam
Context: electrode composite containing pristine MOF active material
Measurement source: 8 · 3.2. Electrochemical characterization · Fig. 6d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni-DPTTZ-MOF electrode capacitance retention after 5000 cycles	17.6 % after 5000 cycles at 5 A g-1 (from Fig. 6d label)	—	—	Figure Axis Rounded Reported	8 · 3.2. Electrochemical characterization · Fig. 6d

Galvanostatic cycling stability test

Galvanostatic cycling

Ni3Co1-DPTTZ-MOF nickel-foam working electrode · Electrode

5000 cycles at 5 A g-1

Geometry: nickel-foam working electrode
Context: composite electrode with pristine MOF active material
Measurement source: 8 · 3.2 · Fig. 6d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni3Co1-DPTTZ-MOF electrode capacitance retention after 5000 cyclesMarked as a best value within this paper	77.1 % after 5000 cycles at 5 A g-1	—	—	Text Exact Reported	8 · 3.2 · Fig. 6d
Post-cycle Co/Ni-N stretching FT-IR peak	426 cm-1	—	—	Text Exact Reported	9 · 3.2 · Fig. S20c-d referenced
Post-cycle Ni/Co-O bending FT-IR peak	620 cm-1	—	—	Text Exact Reported	8 · 3.2 · Fig. S20c-d referenced
Post-cycle Ni/Co-O stretching FT-IR peak	753 cm-1	—	—	Text Exact Reported	8 · 3.2 · Fig. S20c-d referenced

Three-electrode cyclic voltammetry and galvanostatic charge-discharge

Voltammetry Galvanostatic cycling

Ni3Co1-DPTTZ-MOF nickel-foam working electrode · Electrode

Pt sheet counter electrode, Ag/AgCl reference electrode; scan rates and current densities varied; electrolyte not explicitly stated in main-text three-electrode paragraph

Geometry: working electrode on 1 cm x 2 cm nickel foam; active mass loading ca. 2.5 mg cm-2
Context: composite electrode with pristine MOF active material, PVDF and Ketjen Black
Measurement source: 3 · 2.4 · Fig. 5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Relative CV area at 10 mV s-1Marked as a best value within this paper	Ni3Co1-DPTTZ-MOF electrode shows largest CV area	—	—	Qualitative Qualitative	5 · 3.2 · Fig. 5a
Co-DPTTZ-MOF electrode specific capacitance at 1 A g-1	165.5 F g-1	—	—	Text Exact Reported	5 · 3.2 · Fig. 5c; Fig. S11
Ni1Co1-DPTTZ-MOF electrode specific capacitance at 1 A g-1	approximately 380 F g-1 from Fig. 5e	—	—	Visual Estimate Approximate	7 · 3.2 · Fig. 5e
Ni1Co3-DPTTZ-MOF electrode specific capacitance at 1 A g-1	approximately 170 F g-1 from Fig. 5e	—	—	Visual Estimate Approximate	7 · 3.2 · Fig. 5e
Ni3Co1-DPTTZ-MOF electrode specific capacitance at 10 A g-1	382 F g-1 at 10 A g-1	—	—	Text Exact Reported	5 · 3.2 · Fig. 5e
Ni3Co1-DPTTZ-MOF electrode specific capacitance at 1 A g-1Marked as a best value within this paper	577.7 F g-1 at 1 A g-1	—	—	Text Exact Reported	5 · 3.2 · Fig. 5c; Fig. S11
Ni-DPTTZ-MOF electrode specific capacitance at 1 A g-1	292.7 F g-1	—	—	Text Exact Reported	5 · 3.2 · Fig. 5c; Fig. S11
Ni3Co1-DPTTZ-MOF capacitance retention at 10 A g-1	initial 66 %	—	—	Text Exact Reported	5 · 3.2 · Fig. 5e

Electrochemical impedance spectroscopy (EIS), Nyquist plot

Impedance spectroscopy

Ni3Co1-DPTTZ-MOF nickel-foam working electrode · Electrode

Electrode EIS used to evaluate reaction kinetics; figure shows equivalent electrical circuit in inset

Geometry: working electrode on nickel foam
Context: composite electrode with pristine MOF active material
Measurement source: 5 · 3.2 · Fig. 5f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
NiCo-DPTTZ-MOF electrode charge-transfer resistance Rct	Rct = 0.79 ohm	—	—	Text Exact Reported	5 · 3.2 · Fig. 5f
NiCo-DPTTZ-MOF electrode series resistance Rs	Rs = 0.73 ohm	—	—	Text Exact Reported	5 · 3.2 · Fig. 5f