Electrochemistry Application — Fabrication of Hierarchical Porous Metal-Organic Framework Electrode for Aqueous Asymmetric Supercapacitor

7 measurement groups · 40 results

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

Cyclic voltammetry (CV), asymmetric full cell

Voltammetry

PC//HP-UiO-66 ASC · Electrode

PC//HP-UiO-66 ASC in 6 M KOH; potential window optimisation and scan-rate testing.

Temperature: 293
Atmosphere: aqueous KOH
Geometry: two-electrode asymmetric supercapacitor
Context: application device
Measurement source: p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6b,c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ASC CV scan-rate set	5, 10, 20, 50, 100, 200 mV s-1	—	—	Figure Axis Exact Reported	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6c
Stable ASC operation voltage windowMarked as a best value within this paper	0-1.6 V	—	—	Text Exact Reported	p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6b,c
ASC CV potential window set	1.0, 1.2, 1.4, 1.6 V	—	—	Figure Axis Exact Reported	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6b

Repeated GCD cycling stability

Galvanostatic cycling

PC//HP-UiO-66 ASC · Electrode

PC//HP-UiO-66 ASC cycled from 0 to 1.6 V at 5 A g-1.

Atmosphere: aqueous KOH
Geometry: two-electrode asymmetric supercapacitor
Context: application device
Measurement source: p008 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
PC//HP-UiO-66 ASC capacitance retention after cycling	68.8% after 2000 cycles at 5 A g-1	—	—	Text Exact Reported	p008 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6f
LED demonstration voltage	blue LED driving voltage 3.2 V after 2000 cycles at 5 A g-1	—	—	Text Exact Reported	p008 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6f inset

Galvanostatic charge/discharge and Ragone analysis, asymmetric full cell

Galvanostatic cycling

PC//HP-UiO-66 ASC · Electrode

PC//HP-UiO-66 ASC in 0-1.6 V window; capacitance by eq 2; energy and power by eqs 3-4.

Temperature: 293
Atmosphere: aqueous KOH
Geometry: two-electrode asymmetric supercapacitor
Context: application device
Measurement source: p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6d,e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
PC//HP-UiO-66 ASC maximum specific capacitanceMarked as a best value within this paper	90 F g-1 at 0.3 A g-1	—	—	Text Exact Reported	p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC specific capacitance at 0.5 A g-1, figure estimate	approximately 87 F g-1 at 0.5 A g-1	—	visual estimate	Visual Estimate Approximate	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC specific capacitance at 10 A g-1	48.2 F g-1 at 10 A g-1	—	—	Text Exact Reported	p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC specific capacitance at 1 A g-1, figure estimate	approximately 82 F g-1 at 1 A g-1	—	visual estimate	Visual Estimate Approximate	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC specific capacitance at 2 A g-1, figure estimate	approximately 71 F g-1 at 2 A g-1	—	visual estimate	Visual Estimate Approximate	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC specific capacitance at 4 A g-1, figure estimate	approximately 62 F g-1 at 4 A g-1	—	visual estimate	Visual Estimate Approximate	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC specific capacitance at 5 A g-1, figure estimate	approximately 56 F g-1 at 5 A g-1	—	visual estimate	Visual Estimate Approximate	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC specific capacitance at 8 A g-1, figure estimate	approximately 48 F g-1 at 8 A g-1	—	visual estimate	Visual Estimate Approximate	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC capacitance retention at 10 A g-1	53.5% of initial value	—	—	Text Exact Reported	p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC maximum energy densityMarked as a best value within this paper	32 W h kg-1 at 240 W kg-1 and 0.3 A g-1	—	—	Text Exact Reported	p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC energy density at high power	16 W h kg-1 at 7486 W kg-1 and 10 A g-1	—	—	Text Exact Reported	p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
ASC GCD current-density set	0.3, 0.5, 1, 2, 4, 5, 8, 10 A g-1	—	—	Figure Axis Exact Reported	p006 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6d
HP-UiO-66 electrode loading in ASC	2.8 mg	—	—	Text Exact Reported	p002 · Electrochemical Measurements
HP-UiO-66 to porous carbon loading mass ratio	about 0.96	—	about	Text Approximate	p002 · Electrochemical Measurements · Equation 5
Porous carbon electrode loading in ASC	2.9 mg	—	—	Text Exact Reported	p002 · Electrochemical Measurements
PC//HP-UiO-66 ASC power density at maximum energy density	240 W kg-1	—	—	Text Exact Reported	p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
PC//HP-UiO-66 ASC high power densityMarked as a best value within this paper	7486 W kg-1	—	—	Text Exact Reported	p007 · Electrochemical Properties of PC//HP-UiO-66 ASC · Figure 6e
ASC total active loading	5.7 mg	—	—	Text Exact Reported	p002 · Electrochemical Measurements

Cyclic voltammetry (CV), three-electrode system

Voltammetry

HP-UiO-66 working electrode · Electrode

6 M KOH aqueous electrolyte, 20 C; Hg/HgO reference, Pt counter electrode; scan rates 5-100 mV s-1.

Temperature: 293
Atmosphere: aqueous KOH
Geometry: Ni foam working electrode
Context: HP-UiO-66 active material in composite electrode
Measurement source: p006 · Electrochemical Behaviors · Figure 5b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
HP-UiO-66 CV integral area larger than UiO-66	HP-UiO-66 exhibits much larger integral area than UiO-66.	—	—	Text Qualitative	p006 · Electrochemical Behaviors · Figure 5a,b
HP-UiO-66 CV scan-rate set	5, 10, 20, 50, 100 mV s-1	—	—	Figure Axis Exact Reported	p005 · Electrochemical Behaviors · Figure 5b

Cyclic voltammetry (CV), three-electrode system

Voltammetry

Bare UiO-66 working electrode · Electrode

6 M KOH aqueous electrolyte, 20 C; Hg/HgO reference, Pt counter electrode; scan rates 5-100 mV s-1.

Temperature: 293
Atmosphere: aqueous KOH
Geometry: Ni foam working electrode
Context: pristine UiO-66 active material in composite electrode
Measurement source: p005 · Electrochemical Behaviors · Figure 5a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
UiO-66 CV scan-rate set	5, 10, 20, 50, 100 mV s-1	—	—	Figure Axis Exact Reported	p005 · Electrochemical Behaviors · Figure 5a

Galvanostatic charge/discharge (GCD), three-electrode system

Galvanostatic cycling

HP-UiO-66 working electrode · Electrode

6 M KOH aqueous electrolyte; capacitance calculated from discharge curves.

Temperature: 293
Atmosphere: aqueous KOH
Geometry: Ni foam working electrode
Context: HP-UiO-66 active material in composite electrode
Measurement source: p006 · Electrochemical Behaviors · Figure 5d,e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Active-material loading density on each working electrode	about 3 mg cm-2	—	about	Text Approximate	p002 · Electrochemical Measurements
MOF electrode GCD current-density set	0.2, 0.5, 1, 2, 5, 10 A g-1	—	—	Figure Axis Exact Reported	p005 · Electrochemical Behaviors · Figure 5c,d
HP-UiO-66 specific capacitance at 0.2 A g-1Marked as a best value within this paper	849 F g-1 at 0.2 A g-1	—	—	Text Exact Reported	p007 · Electrochemical Behaviors · Figure 5e
HP-UiO-66 specific capacitance at 0.5 A g-1, figure estimate	approximately 700 F g-1 at 0.5 A g-1	—	visual estimate	Visual Estimate Approximate	p005 · Electrochemical Behaviors · Figure 5e
HP-UiO-66 specific capacitance at 10 A g-1	237 F g-1 at 10 A g-1	—	—	Text Exact Reported	p007 · Electrochemical Behaviors · Figure 5e
HP-UiO-66 specific capacitance at 1 A g-1, figure estimate	approximately 580 F g-1 at 1 A g-1	—	visual estimate	Visual Estimate Approximate	p005 · Electrochemical Behaviors · Figure 5e
HP-UiO-66 specific capacitance at 2 A g-1, figure estimate	approximately 470 F g-1 at 2 A g-1	—	visual estimate	Visual Estimate Approximate	p005 · Electrochemical Behaviors · Figure 5e
HP-UiO-66 specific capacitance at 5 A g-1, figure estimate	approximately 360 F g-1 at 5 A g-1	—	visual estimate	Visual Estimate Approximate	p005 · Electrochemical Behaviors · Figure 5e
HP-UiO-66 capacitance enhancement over UiO-66	8.36 times more than UiO-66	—	—	Text Exact Reported	p007 · Electrochemical Behaviors · Figure 5e

Galvanostatic charge/discharge (GCD), three-electrode system

Galvanostatic cycling

Bare UiO-66 working electrode · Electrode

6 M KOH aqueous electrolyte; capacitance calculated from discharge curves.

Temperature: 293
Atmosphere: aqueous KOH
Geometry: Ni foam working electrode
Context: pristine UiO-66 active material in composite electrode
Measurement source: p006 · Electrochemical Behaviors · Figure 5c,e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
UiO-66 specific capacitance at 0.2 A g-1	101.5 F g-1 at 0.2 A g-1	—	—	Text Exact Reported	p007 · Electrochemical Behaviors · Figure 5e
UiO-66 specific capacitance at 0.5 A g-1, figure estimate	approximately 95 F g-1 at 0.5 A g-1	—	visual estimate	Visual Estimate Approximate	p005 · Electrochemical Behaviors · Figure 5e
UiO-66 specific capacitance at 1 A g-1, figure estimate	approximately 85 F g-1 at 1 A g-1	—	visual estimate	Visual Estimate Approximate	p005 · Electrochemical Behaviors · Figure 5e
UiO-66 specific capacitance at 2 A g-1, figure estimate	approximately 65 F g-1 at 2 A g-1	—	visual estimate	Visual Estimate Approximate	p005 · Electrochemical Behaviors · Figure 5e
UiO-66 specific capacitance at 5 A g-1, figure estimate	approximately 45 F g-1 at 5 A g-1	—	visual estimate	Visual Estimate Approximate	p005 · Electrochemical Behaviors · Figure 5e