Electrochemistry Application — Enhancing the energy storage performances of metal-organic frameworks by controlling microstructure

3 measurement groups · 24 results

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

Symmetric supercapacitor CV, GCD, and EIS with EMIM-BF4 ionic liquid electrolyte

Impedance spectroscopy Voltammetry Galvanostatic cycling

A-CuHHTP composite electrode · Electrode

CR2032 SS316 symmetric coin cells; undiluted EMIM-BF4; CV at 10 mV s^-1 to 1 V; GCD to 1 V unless slow-charge test limited to 0.5 V; EIS 1 MHz to 10 mHz at OCV.

Atmosphere: cells assembled in N2-filled glovebox
Geometry: symmetric coin cell with two composite film electrodes
Context: composite electrode application; capacitance normalised to active Cu3(HHTP)2 mass
Measurement source: p006-p007 / journal p9215-p9216 · Results & discussion · Fig. 5; SI Fig. S12-S13; Table S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
A-CuHHTP specific capacitance at low current density in EMIM-BF4Marked as a best value within this paper	57 +/- 2 F g^-1	—	+/- 2 F g^-1	Text Exact Reported	p006 / journal p9215 · Results & discussion · Fig. 5b
A-CuHHTP EMIM-BF4 EIS internal resistance, highlighted cell	48.4 ohm	—	—	SI Table Exact Reported	p020 · Table S6 · Table S6
A-CuHHTP slow-charge specific capacitance in EMIM-BF4Marked as a best value within this paper	46.5 F g^-1 at 0.0025 A g^-1, 0.5 V	—	—	SI Table Exact Reported	p026 · Table S7 · Table S7
A-CuHHTP EMIM-BF4 EIS transition frequencyMarked as a best value within this paper	3.4 Hz	—	—	Text Exact Reported	p007 / journal p9216 · Results & discussion · Fig. 5c,d
B-CuHHTP specific capacitance at low current density in EMIM-BF4	8 +/- 2 F g^-1	—	+/- 2 F g^-1	Text Exact Reported	p006 / journal p9215 · Results & discussion · Fig. 5b
B-CuHHTP EMIM-BF4 EIS internal resistance, highlighted cell	52.1 ohm	—	—	SI Table Exact Reported	p020 · Table S6 · Table S6
B-CuHHTP slow-charge specific capacitance in EMIM-BF4	7.1 F g^-1 at 0.0025 A g^-1, 0.5 V	—	—	SI Table Exact Reported	p026 · Table S7 · Table S7
B-CuHHTP EMIM-BF4 C'' relaxation time	0.6 s	—	—	Text Exact Reported	p007 / journal p9216 · Results & discussion · Fig. 5e,f
C-CuHHTP specific capacitance at low current density in EMIM-BF4	3 +/- 1 F g^-1	—	+/- 1 F g^-1	Text Exact Reported	p006 / journal p9215 · Results & discussion · Fig. 5b
C-CuHHTP EMIM-BF4 EIS internal resistance, highlighted cell	70.4 ohm	—	—	SI Table Exact Reported	p020 · Table S6 · Table S6
C-CuHHTP slow-charge specific capacitance in EMIM-BF4	2.1 F g^-1 at 0.0025 A g^-1, 0.5 V	—	—	SI Table Exact Reported	p026 · Table S7 · Table S7
C-CuHHTP EMIM-BF4 C'' relaxation time	1.5 s	—	—	Text Exact Reported	p007 / journal p9216 · Results & discussion · Fig. 5e,f
EMIM-BF4 stable voltage window	ca. 1 V for all Cu3(HHTP)2 samples	—	ca.	Text Approximate	p006 / journal p9215 · Results & discussion · Fig. 5a

Symmetric supercapacitor CV, GCD, and EIS with 1 M NEt4BF4/ACN electrolyte

Impedance spectroscopy Voltammetry Galvanostatic cycling

A-CuHHTP composite electrode · Electrode

CR2032 SS316 symmetric coin cells; 1 M NEt4BF4 in ACN; CV at 10 mV s^-1 to 1 V; GCD to 1 V over 0.025-1 A g^-1; EIS 1 MHz to 10 mHz at OCV, 10 mV amplitude.

Atmosphere: cells assembled in N2-filled glovebox
Geometry: symmetric coin cell with two composite film electrodes
Context: composite electrode application; capacitance normalised to active Cu3(HHTP)2 mass
Measurement source: p005 / journal p9214 · Results & discussion · Fig. 4; SI Fig. S10-S11; Table S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
A-CuHHTP specific capacitance at low current density in NEt4BF4/ACNMarked as a best value within this paper	129 +/- 2 F g^-1	—	+/- 2 F g^-1	Text Exact Reported	p004 / journal p9213 · Results & discussion · Fig. 4b
A-CuHHTP NEt4BF4/ACN EIS internal resistance, highlighted cell	4.5 ohm	—	—	SI Table Exact Reported	p020 · Table S6 · Table S6
A-CuHHTP capacitance retention from 0.025 to 1 A g^-1Marked as a best value within this paper	60 +/- 1%	—	+/- 1%	Text Exact Reported	p005 / journal p9214 · Results & discussion · Fig. 4b; SI Fig. S10
B-CuHHTP specific capacitance at low current density in NEt4BF4/ACN	127 +/- 5 F g^-1	—	+/- 5 F g^-1	Text Exact Reported	p004 / journal p9213 · Results & discussion · Fig. 4b
B-CuHHTP NEt4BF4/ACN EIS internal resistance, highlighted cell	5.9 ohm	—	—	SI Table Exact Reported	p020 · Table S6 · Table S6
B-CuHHTP capacitance retention from 0.025 to 1 A g^-1	40 +/- 4%	—	+/- 4%	Text Exact Reported	p005 / journal p9214 · Results & discussion · Fig. 4b; SI Fig. S10
C-CuHHTP specific capacitance at 0.05 A g^-1 in NEt4BF4/ACN	36 +/- 6 F g^-1 at 0.05 A g^-1	—	+/- 6 F g^-1	Text Exact Reported	p004 / journal p9213 · Results & discussion · Fig. 4b
C-CuHHTP NEt4BF4/ACN EIS internal resistance, highlighted cellMarked as a best value within this paper	2.5 ohm	—	—	SI Table Exact Reported	p020 · Table S6 · Table S6
C-CuHHTP capacitance retention from 0.025 to 1 A g^-1	17 +/- 2%	—	+/- 2%	Text Exact Reported	p005 / journal p9214 · Results & discussion · Fig. 4b; SI Fig. S10
NEt4BF4/ACN stable voltage window	ca. 1 V for all samples	—	ca.	Text Approximate	p004 / journal p9213 · Results & discussion · Fig. 4a

Symmetric supercapacitor CV and GCD with neat A-CuHHTP pellet electrodes

Voltammetry Galvanostatic cycling

Neat A-CuHHTP pellet electrode · Pellet

Neat A-CuHHTP pellet electrodes; 1 M NEt4BF4/ACN; CV at 10 mV s^-1; GCD charging to 0.6 V.

Atmosphere: coin cell assembled in N2-filled glovebox
Geometry: symmetric coin cell with neat pellet electrodes
Context: pristine framework control without conductive additive
Measurement source: p022 · Figure S9 · Fig. S9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Neat A-CuHHTP pellet supercapacitor performance	poor energy storage performances; figure shows capacitance falls from roughly 19 F g^-1 at very low current to roughly 2 F g^-1 by ca. 0.028 A g^-1	—	visual estimate from Fig. S9b	Figure Axis Approximate	p022 · Figure S9 · Fig. S9b