Electrochemistry Application — Electrosynthesis of a Nickel-Based Conductive Metal-Organic Framework with Controlled Morphology for Enhanced Capacitance

4 measurement groups · 11 results

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

Cyclic voltammetry for gravimetric capacitance

Voltammetry

Ni-HHTP comparative sample set · Unknown

Three-electrode cell with degassed 0.1 M TEBF4 in acetonitrile, nonaqueous Ag/Ag+ reference and Pt counter electrode; capacitance compared at 100 mV s-1.

Atmosphere: degassed electrolyte
Geometry: NF-supported electrodes; bulk ink on NF control
Context: Pristine electrosynthesised Ni-HHTP compared with composite bulk ink and blank NF.
Measurement source: 52-53 · Results · Figure 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Gravimetric capacitance: bulk Ni-HHTP ink	3.73 F g^-1 at 100 mV s^-1	—	—	Text Exact Reported	52 · Results · Figure 4
Gravimetric capacitance: Ni-HHTP-Disc	8.02 F g^-1 at 100 mV s^-1	—	—	Text Exact Reported	52 · Results · Figure 4
Gravimetric capacitance: Ni-HHTP-FlowerMarked as a best value within this paper	39.7 F g^-1 at 100 mV s^-1	—	—	Text Exact Reported	52 · Results · Figure 4
Flower capacitance enhancement over bulk	Nearly 10-fold increase compared to bulk ink	—	—	Text Rounded Reported	52 · Results · Figure 4

Cycling stability cyclic voltammetry

Voltammetry

Ni-HHTP comparative sample set · Unknown

Ni-HHTP-Flower and Ni-HHTP-Disc cycled up to 100 cycles in 0.1 M TEBF4 in acetonitrile.

Geometry: NF-supported electrosynthesised electrodes
Context: Pristine electrosynthesised Ni-HHTP morphologies.
Measurement source: S17 · Electrochemical Analysis · Figure S19

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cycling stability test length	Flower and Disc CV cycling stability shown up to 100 cycles	—	—	Caption Exact Reported	S17 · Electrochemical Analysis · Figure S19

ECSA from double-layer capacitance

Ni-HHTP comparative sample set · Unknown

Double-layer capacitance from CV scan rates 200-500 mV/s; same 0.1 M TEBF4/acetonitrile electrochemical conditions.

Atmosphere: degassed electrolyte
Geometry: NF-supported electrodes and blank NF
Context: Pristine electrosynthesised Ni-HHTP compared with composite bulk ink and blank NF.
Measurement source: 53 · Results · Figures S17-S18

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ECSA: blank NF	0.0870 mF cm^-2	—	—	Text Exact Reported	53 · Results · Figures S17-S18
ECSA: bulk Ni-HHTP ink	0.0751 mF cm^-2	—	—	Text Exact Reported	53 · Results · Figures S17-S18
ECSA: Ni-HHTP-Disc	0.191 mF cm^-2	—	—	Text Exact Reported	53 · Results · Figures S17-S18
ECSA: Ni-HHTP-FlowerMarked as a best value within this paper	0.320 mF cm^-2	—	—	Text Exact Reported	53 · Results · Figures S17-S18

Electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

Ni-HHTP comparative sample set · Unknown

Ni-HHTP-Flower and Ni-HHTP-Disc measured from 1 MHz to 50 mHz in 0.1 M TEBF4/acetonitrile.

Geometry: NF-supported electrosynthesised electrodes
Context: Pristine electrosynthesised Ni-HHTP morphologies.
Measurement source: 53 · Results · Figure S20

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Relative charge-transfer resistance from EIS	Ni-HHTP-Disc has a larger high-frequency semicircle than Ni-HHTP-Flower, indicating greater charge-transfer resistance	—	—	Text Qualitative	53 · Results · Figure S20
EIS frequency range	1 MHz to 50 mHz	—	—	Caption Range	S18 · Electrochemical Analysis · Figure S20