Electrochemistry Application — Morphology Control of Mixed Metallic Organic Framework for High-Performance Hybrid Supercapacitors

Measurement evidence

Electrochemistry Application

Morphology Control of Mixed Metallic Organic Framework for High-Performance Hybrid Supercapacitors · Mohanty A., Kang K.-N., Saravanakumar B. et al. · Small · 2024 · 2308771

9 measurement groups · 39 results

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

CV, GCD and EIS for benzoic-acid series

Benzoic Acid-80 · Electrode

Benzoic acid-60/80/100 comparison, including rate capability and ESR.

Geometry
Three-electrode electrochemical cell
Context
Composite binder-free MOF electrodes
Measurement source
SI pp.17-18 · Figure S19 discussion · Figure S19
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Benzoic Acid-80 rate capability at 14 mA cm-2 vs 5 mA cm-2Marked as a best value within this paper71.6%Text
Exact Reported
SI p.18 · Figure S19 discussion · Figure S19

Peak current vs scan rate and capacitive/diffusion contribution analysis

H2BDC-80 · Electrode

Randles-Sevcik-style analysis; contribution calculated at varied scan rates.

Geometry
Three-electrode electrochemical cell
Context
Composite binder-free MOF electrode
Measurement source
SI pp.21-22 · Charge storage contribution · Figures S23-S24
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
H2BDC-80 anodic b value0.53Text
Exact Reported
SI p.22 · Charge storage contribution · Figure S23
H2BDC-80 cathodic b value0.5Text
Exact Reported
SI p.22 · Charge storage contribution · Figure S23
H2BDC-80 diffusion-controlled contribution at 5 mV s-1Marked as a best value within this paper82%Text
Exact Reported
SI p.22 · Charge storage contribution · Figure 3c

CV, GCD and EIS for H2BDC series

H2BDC-80 · Electrode

H2BDC-60/80/100 comparison, including maximum areal capacity, rate capability and ESR.

Geometry
Three-electrode electrochemical cell
Context
Composite binder-free MOF electrodes
Measurement source
SI pp.18-19 · Figure S20 discussion · Figure S20
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
H2BDC-100 areal capacity at 5 mA cm-22160 mC cm-2Text
Exact Reported
SI p.19 · Figure S20 discussion · Figure S20
H2BDC-60 areal capacity at 5 mA cm-22272.5 mC cm-2Text
Exact Reported
SI p.19 · Figure S20 discussion · Figure S20
H2BDC-80 rate capability at 14 mA cm-2 vs 5 mA cm-2Marked as a best value within this paper66%Text
Exact Reported
SI p.19 · Figure S20 discussion · Figure S20

CV, GCD and EIS for H3BTC series

H3BTC-100 · Electrode

H3BTC-60/80/100 comparison, including maximum specific capacity, rate capability and ESR.

Geometry
Three-electrode electrochemical cell
Context
Composite binder-free MOF electrodes
Measurement source
SI pp.19-20 · Figure S21 discussion · Figure S21
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
H3BTC-100 maximum specific capacity at 6 mA cm-2Marked as a best value within this paper1560 mC cm-2Text
Exact Reported
SI p.20 · Figure S21 discussion · Figure S21
H3BTC-100 rate capability69%Text
Exact Reported
SI p.20 · Figure S21 discussion · Figure S21
H3BTC-60 maximum specific capacity at 6 mA cm-21422 mC cm-2Text
Exact Reported
SI p.20 · Figure S21 discussion · Figure S21
H3BTC-80 maximum specific capacity at 6 mA cm-21198.4 mC cm-2Text
Exact Reported
SI p.20 · Figure S21 discussion · Figure S21

Two-electrode HSC CV, GCD, EIS, Ragone and cycling

H2BDC-80//3D NCF/Cu hybrid supercapacitor · Unknown

2 M KOH; positive H2BDC-80 electrode and 3D NCF/Cu negative electrode; potential window optimised to 1.54 V.

Geometry
Asymmetric split-test-cell hybrid supercapacitor; active area 2 cm2.
Context
Application device using composite conductive-MOF positive electrode
Measurement source
main p.7 · Results and Discussion · Figure 4; Figure S26
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
HSC maximum areal capacitance at 6 mA cm-2Marked as a best value within this paper424.6 mF cm-2Text
Exact Reported
main p.7 · Results and Discussion · Figure 4f
HSC areal specific capacity at 6 mA cm-2Marked as a best value within this paper653.8 mC cm-2Text
Exact Reported
main p.7 · Results and Discussion · Figure 4f
HSC areal energy density at 2310 uW cm-2Marked as a best value within this paper139.8 uWh cm-2 at 2310 uW cm-2Text
Exact Reported
main p.7 · Results and Discussion · Figure 4h; Figure S26c
HSC capacity retention after 5000 cycles76.1% after 5000 GCD cycles at 20 mA cm-2Text
Exact Reported
main p.8 · Results and Discussion · Figure 4i
HSC volumetric energy density at maximum volumetric power5.57 mWh cm-3 at 557.9 mW cm-3Text
Exact Reported
main p.8 · Results and Discussion · Figure 4h
HSC ESR0.78 ohmText
Exact Reported
main p.7 · Results and Discussion · Figure S26b
HSC gravimetric energy densityMarked as a best value within this paper139.9 Wh kg-1 at 2310 W kg-1Text
Exact Reported
main p.7 · Results and Discussion · Figure S26d
HSC negative-electrode active mass loading10 mg cm-2Text
Exact Reported
main p.7 · Results and Discussion · Figure 4
HSC positive-electrode active mass loading9.6 mg cm-2Text
Exact Reported
main p.7 · Results and Discussion · Figure 4
Optimised HSC potential windowMarked as a best value within this paper1.54 VText
Exact Reported
main p.7 · Results and Discussion · Figure 4c,e; Figure S26a
HSC volumetric capacitance at 6 mA cm-2Marked as a best value within this paper30.7 F cm-3Text
Exact Reported
main p.8 · Conclusion · Figure 4f
HSC maximum volumetric energy densityMarked as a best value within this paper10.1 mWh cm-3 at 167.4 mW cm-3Text
Exact Reported
main p.7 · Results and Discussion · Figure 4h; Figure S26c,d
HSC volumetric power density at maximum energy167.4 mW cm-3Text
Exact Reported
main p.7 · Results and Discussion · Figure 4h; Figure S26c,d

CV and Nyquist EIS comparison of slurry-based H2BDC-80 and binder-free H2BDC-80

Slurry-based H2BDC-80 electrode · Electrode

CV at 5 mV s-1; EIS fitted to extract Rs and Rct.

Geometry
Three-electrode electrochemical cell
Context
Slurry control vs direct binder-free composite electrode
Measurement source
SI p.20 · Figure S22 and Table S1 · Figure S22; Table S1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Binder-free H2BDC-80 Rct in slurry comparisonMarked as a best value within this paper0.06 ohmSI Table
Exact Reported
SI p.20 · Table S1 · Table S1
Slurry-based H2BDC-80 Rct13.83 ohmSI Table
Exact Reported
SI p.20 · Table S1 · Table S1
Slurry-based H2BDC-80 Rs1.04 ohmSI Table
Exact Reported
SI p.20 · Table S1 · Table S1

CV, GCD and EIS in three-electrode setup

Benzoic Acid-80 · Electrode

2 M KOH electrolyte; as-synthesised electrode working, Pt plate counter, Hg/HgO reference; CV -0.1 to 0.6 V.

Geometry
Three-electrode electrochemical cell
Context
Composite binder-free MOF electrode
Measurement source
main p.5 · Results and Discussion · Figure 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Benzoic Acid-80 capacity retention after 5000 cyclesMarked as a best value within this paper96.1% after 5000 GCD cycles at 40 mA cm-2Text
Exact Reported
main p.7 · Results and Discussion · Figure 3g
Benzoic Acid-80 fitted Rs/ESR0.9261 ohmSI Table
Exact Reported
SI p.22 · Table S2 · Table S2
Benzoic Acid-80 fitted charge-transfer resistance Rct0.09942 ohmSI Table
Exact Reported
SI p.22 · Table S2 · Table S2
Benzoic Acid-80 specific capacity at 5 mA cm-21340 mC cm-2Text
Exact Reported
main p.6 · Results and Discussion · Figure 3e

CV, GCD and EIS in three-electrode setup

H2BDC-80 · Electrode

2 M KOH electrolyte; as-synthesised electrode working, Pt plate counter, Hg/HgO reference; CV -0.1 to 0.6 V.

Geometry
Three-electrode electrochemical cell
Context
Composite binder-free MOF electrode
Measurement source
main p.6 · Results and Discussion · Figure 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
H2BDC-80 capacity retention after 5000 cycles82.3% after 5000 GCD cycles at 40 mA cm-2Text
Exact Reported
main p.7 · Results and Discussion · Figure 3g
H2BDC-80 fitted Rs/ESRMarked as a best value within this paper0.8763 ohmSI Table
Exact Reported
SI p.22 · Table S2 · Table S2
H2BDC-80 fitted charge-transfer resistance Rct0.06276 ohmSI Table
Exact Reported
SI p.22 · Table S2 · Table S2
H2BDC-80 specific capacity at 5 mA cm-2Marked as a best value within this paper2320 mC cm-2Text
Exact Reported
main p.6 · Results and Discussion · Figure 3e

CV, GCD and EIS in three-electrode setup

H3BTC-100 · Electrode

2 M KOH electrolyte; as-synthesised electrode working, Pt plate counter, Hg/HgO reference; CV -0.1 to 0.6 V.

Geometry
Three-electrode electrochemical cell
Context
Composite binder-free MOF electrode
Measurement source
main p.6 · Results and Discussion · Figure 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
H3BTC-100 capacity retention after 5000 cycles94.7% after 5000 GCD cycles at 40 mA cm-2Text
Exact Reported
main p.7 · Results and Discussion · Figure 3g
H3BTC-100 fitted Rs/ESR0.8936 ohmSI Table
Exact Reported
SI p.22 · Table S2 · Table S2
H3BTC-100 fitted charge-transfer resistance RctMarked as a best value within this paper0.04835 ohmSI Table
Exact Reported
SI p.22 · Table S2 · Table S2
H3BTC-100 specific capacity at 5 mA cm-21623.15 mC cm-2Text
Exact Reported
main p.6 · Results and Discussion · Figure 3e