Electrochemistry Application — Upgrading Structural Conjugation in Three-Dimensional Ni-Based Metal-Organic Frameworks for Promoting Electrical Conductivity and Specific Capacitance

7 measurement groups · 33 results

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

Two-electrode asymmetric supercapacitor electrochemistry

Ni-BPE//AC ASC device · Electrode

Ni-BPE positive electrode; AC negative electrode; 3 M KOH electrolyte; voltage window up to 1.6 V; CV 10-50 mV s-1; GCD 1-10 A g-1; cycling at 2 A g-1

Atmosphere: 3 M KOH
Geometry: two-electrode ASC
Context: Ni-BPE-containing composite device
Measurement source: p. 18089 · Electrochemical Performance · Figure 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ASC specific capacitance at 10 A g-1	36.9 F g-1	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 6d; Figure S10
ASC specific capacitance at 1 A g-1Marked as a best value within this paper	71.0 F g-1	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 6d; Figure S10
ASC cycling test cycle count	5000 cycles	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 6f; Table S5
ASC capacitance retention after 5000 cyclesMarked as a best value within this paper	~71.0% after 5000 cycles at 2 A g-1	—	—	Text Approximate	p. 18089 · Electrochemical Performance · Figure 6f; Table S5
ASC energy densityMarked as a best value within this paper	25.2 Wh kg-1 at 800 W kg-1	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 6e
ASC power density at 25.2 Wh kg-1	800 W kg-1	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 6e
ASC device voltage window	extended to 1.6 V	—	—	Text Rounded Reported	p. 18089 · Electrochemical Performance · Figure 6b,c

CV charge-storage kinetics analysis

Voltammetry

Ni-BPE/Ni foam working electrode · Electrode

Power-law b-value analysis and diffusion/capacitive contribution separation from CV scans 10-50 mV s-1

Atmosphere: 3 M KOH
Geometry: three-electrode Ni foam working electrode
Context: composite electrode using target MOF
Measurement source: p. 18089 · Electrochemical Performance · Figure 5; Figure S8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Power-law b value, anodic peak	0.55	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 5
Power-law b value, cathodic peak	0.38	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 5
Diffusion-controlled contribution at 10 mV s-1	93.9%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f
Diffusion-controlled contribution at 20 mV s-1	91.9%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f
Diffusion-controlled contribution at 30 mV s-1	90.3%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f
Diffusion-controlled contribution at 40 mV s-1	88.8%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f
Diffusion-controlled contribution at 50 mV s-1	87.4%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f

CV charge-storage kinetics analysis

Voltammetry

Ni-BPY/Ni foam working electrode · Electrode

Power-law b-value analysis and diffusion/capacitive contribution separation from CV scans 10-50 mV s-1

Atmosphere: 3 M KOH
Geometry: three-electrode Ni foam working electrode
Context: composite electrode using pristine control MOF
Measurement source: p. 18089 · Electrochemical Performance · Figure 5; Figure S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Power-law b value, anodic peak	0.52	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 5
Power-law b value, cathodic peak	0.4	—	—	Text Exact Reported	p. 18089 · Electrochemical Performance · Figure 5
Diffusion-controlled contribution at 10 mV s-1	90.8%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f
Diffusion-controlled contribution at 20 mV s-1	87.6%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f
Diffusion-controlled contribution at 30 mV s-1	84.9%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f
Diffusion-controlled contribution at 40 mV s-1	82.5%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f
Diffusion-controlled contribution at 50 mV s-1	80.2%	—	—	Figure Axis Rounded Reported	p. 18088 · Electrochemical Performance · Figure 5c/f

CV and galvanostatic charge-discharge in three-electrode cell

Voltammetry Galvanostatic cycling

Ni-BPE/Ni foam working electrode · Electrode

3 M KOH electrolyte; Pt foil counter electrode; Hg/HgO reference; operating potential 0-0.6 V; CV at 10-50 mV s-1; GCD at 1-10 A g-1

Atmosphere: 3 M KOH
Geometry: three-electrode Ni foam working electrode
Context: composite electrode using target MOF
Measurement source: p. 18088 · Electrochemical Performance · Figure 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Specific capacitance at 10 A g-1Marked as a best value within this paper	400.0 F g-1 at 10 A g-1	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4e
Specific capacitance at 1 A g-1Marked as a best value within this paper	633.2 F g-1 (316.6 C g-1) at 1 A g-1	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4d,e; Table S4
Specific capacity at 1 A g-1	316.6 C g-1 at 1 A g-1	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4d,e
Capacitance retention from 1 to 10 A g-1Marked as a best value within this paper	63.2%	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4e

CV and galvanostatic charge-discharge in three-electrode cell

Voltammetry Galvanostatic cycling

Ni-BPY/Ni foam working electrode · Electrode

3 M KOH electrolyte; Pt foil counter electrode; Hg/HgO reference; operating potential 0-0.6 V; CV/GCD comparison

Atmosphere: 3 M KOH
Geometry: three-electrode Ni foam working electrode
Context: composite electrode using pristine control MOF
Measurement source: p. 18088 · Electrochemical Performance · Figure 4; Figure S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Specific capacitance at 10 A g-1	238.0 F g-1 at 10 A g-1	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4e
Specific capacitance at 1 A g-1	429.8 F g-1 (214.9 C g-1) at 1 A g-1	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure S6
Specific capacity at 1 A g-1	214.9 C g-1 at 1 A g-1	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure S6
Capacitance retention from 1 to 10 A g-1	55.3%	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4e

Electrochemical impedance spectroscopy

Impedance spectroscopy

Ni-BPE/Ni foam working electrode · Electrode

Frequency range 100 kHz to 0.01 Hz; Nyquist analysis for Rs and Rct

Atmosphere: 3 M KOH
Geometry: three-electrode Ni foam working electrode
Context: composite electrode using target MOF
Measurement source: p. 18088 · Electrochemical Performance · Figure 4f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charge-transfer resistance RctMarked as a best value within this paper	8.57 ohm	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4f
Series resistance RsMarked as a best value within this paper	0.86 ohm	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4f

Electrochemical impedance spectroscopy

Impedance spectroscopy

Ni-BPY/Ni foam working electrode · Electrode

Frequency range 100 kHz to 0.01 Hz; Nyquist analysis for Rs and Rct

Atmosphere: 3 M KOH
Geometry: three-electrode Ni foam working electrode
Context: composite electrode using pristine control MOF
Measurement source: p. 18088 · Electrochemical Performance · Figure 4f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charge-transfer resistance Rct	12.37 ohm	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4f
Series resistance Rs	1.04 ohm	—	—	Text Exact Reported	p. 18088 · Electrochemical Performance · Figure 4f