Electrochemistry Application — Multimetal Incorporation into 2D Conductive Metal-Organic Framework Nanowires Enabling Excellent Electrocatalytic Oxidation of Benzylamine to Benzonitrile

8 measurement groups · 41 results

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

Electrochemical double-layer capacitance from CV scan-rate series

Voltammetry

NiCoFe-CAT/AB/PVDF on carbon cloth working electrode · Electrode

CV in 1 M KOH; potential window 1.12-1.22 V; scan rates 5-85 mV s-1.

Temperature: room temperature
Geometry: Composite working electrodes on carbon cloth
Context: Composite electrodes; Cdl used as ECSA proxy.
Measurement source: 6 · Results and Discussion · Figure 4d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Carbon cloth electrochemical double-layer capacitance	2.3 mF cm-2	—	—	Text Exact Reported	6 · Results and Discussion · Figure 4d
Ni-CAT electrochemical double-layer capacitance	4.6 mF cm-2	—	—	Text Exact Reported	6 · Results and Discussion · Figure 4d
NiCoFe-CAT electrochemical double-layer capacitanceMarked as a best value within this paper	71.0 mF cm-2	—	—	Text Exact Reported	6 · Results and Discussion · Figure 4d

Cyclic voltammetry (CV)

Voltammetry

NiCoFe-CAT/AB/PVDF on carbon cloth working electrode · Electrode

1.0 M KOH with and without 10 mM BA; scan rate 5 mV s-1.

Temperature: room temperature
Geometry: Three-electrode cell
Context: Target composite electrode.
Measurement source: 5 · Results and Discussion · Figure 4a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
NiCoFe-CAT redox peaks without BA	around 1.20-1.40 V	—	range 1.20-1.40 V	Text Range	5 · Results and Discussion · Figure 4a

Cycling durability chronoamperometry and repeated BA oxidation cycles

Chronoamperometry

NiCoFe-CAT/AB/PVDF on carbon cloth working electrode · Electrode

BA electrooxidation at 1.45 V over five cycles; electrolyte 1 M KOH with BA.

Temperature: room temperature
Geometry: Three-electrode cell
Context: Target composite electrode.
Measurement source: 7 · Results and Discussion · Figure 4h-i

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
BA oxidation activity retained after five cycles	about 66%	—	about	Text Approximate	7 · Results and Discussion · Figure 4i

Electrochemical impedance spectroscopy (EIS), Nyquist

Impedance spectroscopy

NiCoFe-CAT/AB/PVDF on carbon cloth working electrode · Electrode

Charge-transfer/mass-transfer resistance comparison for NiCoFe-CAT, Ni-CAT, and CC.

Temperature: room temperature
Geometry: Three-electrode cell
Context: Composite electrodes and CC control.
Measurement source: 6 · Results and Discussion · Figure 4e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Carbon cloth EIS semicircle/charge-transfer resistance	221.1 ohm	—	—	Text Exact Reported	6 · Results and Discussion · Figure 4e
Ni-CAT EIS semicircle/charge-transfer resistance	4.7 ohm	—	—	Text Exact Reported	6 · Results and Discussion · Figure 4e
NiCoFe-CAT EIS semicircle/charge-transfer resistanceMarked as a best value within this paper	1.4 ohm	—	—	Text Exact Reported	6 · Results and Discussion · Figure 4e

Chronoamperometry followed by GC quantification of benzonitrile yield and Faradaic efficiency

Chronoamperometry

NiCoFe-CAT/AB/PVDF on carbon cloth working electrode · Electrode

1 M KOH with BA at varied potentials; BN extracted with ethyl acetate and quantified by GC.

Temperature: room temperature
Geometry: Three-electrode BA electrooxidation cell
Context: Target composite electrode.
Measurement source: 7 · Results and Discussion · Figure 4g

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Benzonitrile Faradaic efficiency over NiCoFe-CAT at 1.45 VMarked as a best value within this paper	~87%	—	~	Text Approximate	7 · Results and Discussion · Figure 4g
No BN collected at 1.30 V	no BN product could be collected at 1.30 V after 5 h	—	—	Text Qualitative	7 · Results and Discussion · Figure S21
Benzonitrile yield over NiCoFe-CAT at 1.45 VMarked as a best value within this paper	0.058 mmol mg-1 h-1	—	—	Text Exact Reported	7 · Results and Discussion · Figure 4g

Linear sweep voltammetry (LSV) for benzylamine electrooxidation

Voltammetry

NiCoFe-CAT/AB/PVDF on carbon cloth working electrode · Electrode

1 M KOH + 10 mmol BA on carbon cloth, scan rate 5 mV s-1; potentials vs RHE at i10/i50/i100.

Temperature: room temperature
Geometry: Three-electrode cell; M-CAT/AB/PVDF on carbon cloth working electrode.
Context: Composite electrodes with MOF catalyst, acetylene black, PVDF, and carbon cloth.
Measurement source: 13 · Supporting Information · Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni-CAT BA oxidation potential at 10 mA cm-2	i10 = 1.35 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
Ni-CAT BA oxidation potential at 100 mA cm-2	i100 = 1.42 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
Ni-CAT BA oxidation potential at 50 mA cm-2	i50 = 1.39 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCo-CAT BA oxidation potential at 10 mA cm-2	i10 = 1.31 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCo-CAT BA oxidation potential at 100 mA cm-2	i100 = 1.37 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCo-CAT BA oxidation potential at 50 mA cm-2	i50 = 1.34 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCoFe-CAT BA oxidation potential at 10 mA cm-2Marked as a best value within this paper	i10 = 1.29 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCoFe-CAT BA oxidation potential at 100 mA cm-2Marked as a best value within this paper	i100 = 1.33 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCoFe-CAT BA oxidation potential at 50 mA cm-2Marked as a best value within this paper	i50 = 1.31 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiFe-CAT BA oxidation potential at 10 mA cm-2	i10 = 1.41 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiFe-CAT BA oxidation potential at 100 mA cm-2	i100 = 1.44 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiFe-CAT BA oxidation potential at 50 mA cm-2	i50 = 1.43 V vs RHE in 1 M KOH + BA/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCoFe-CAT Table S2 BN yieldMarked as a best value within this paper	0.058 mmol mg-1 h-1	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2

Linear sweep voltammetry (LSV) for OER/water oxidation

Voltammetry

NiCoFe-CAT/AB/PVDF on carbon cloth working electrode · Electrode

1 M KOH on carbon cloth, scan rate 5 mV s-1; potentials vs RHE at i10/i50/i100.

Temperature: room temperature
Geometry: Three-electrode cell; M-CAT/AB/PVDF on carbon cloth working electrode, graphite rod counter, Hg/HgO reference.
Context: Composite electrodes with MOF catalyst, acetylene black, PVDF, and carbon cloth.
Measurement source: 13 · Supporting Information · Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni-CAT OER potential at 10 mA cm-2	i10 = 1.56 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
Ni-CAT OER potential at 50 mA cm-2	i50 = 1.66 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCo-CAT OER potential at 10 mA cm-2	i10 = 1.54 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCo-CAT OER potential at 100 mA cm-2	i100 = 1.62 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCo-CAT OER potential at 50 mA cm-2	i50 = 1.59 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCoFe-CAT OER potential at 10 mA cm-2Marked as a best value within this paper	i10 = 1.42 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCoFe-CAT OER potential at 100 mA cm-2Marked as a best value within this paper	i100 = 1.52 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiCoFe-CAT OER potential at 50 mA cm-2Marked as a best value within this paper	i50 = 1.51 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiFe-CAT OER potential at 10 mA cm-2	i10 = 1.43 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiFe-CAT OER potential at 100 mA cm-2Marked as a best value within this paper	i100 = 1.52 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2
NiFe-CAT OER potential at 50 mA cm-2Marked as a best value within this paper	i50 = 1.51 V vs RHE in 1 M KOH/CC	—	—	SI Table Exact Reported	13 · Supporting Information · Table S2

Turnover frequency and mass activity calculated from LSV/current density and EDS metal-ion counts

Elemental microanalysis and mapping Voltammetry

NiCoFe-CAT/AB/PVDF on carbon cloth working electrode · Electrode

BA oxidation; TOF at 1.35 V; mass activity at 1.29 and 1.35 V.

Temperature: room temperature
Geometry: Three-electrode cell
Context: Composite electrodes.
Measurement source: 6 · Results and Discussion · Figure S18

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni-CAT BA oxidation mass activity at 1.29 V	0.18 A g-1 at 1.29 V	—	—	Text Exact Reported	6 · Results and Discussion
Ni-CAT BA oxidation mass activity at 1.35 V	0.75 A g-1 at 1.35 V	—	—	Text Exact Reported	6 · Results and Discussion
NiCoFe-CAT BA oxidation mass activity at 1.29 VMarked as a best value within this paper	3.3 A g-1 at 1.29 V	—	—	Text Exact Reported	6 · Results and Discussion
NiCoFe-CAT BA oxidation mass activity at 1.35 VMarked as a best value within this paper	133.3 A g-1 at 1.35 V	—	—	Text Exact Reported	6 · Results and Discussion
Ni-CAT TOF for BA oxidation	0.01 s-1	—	—	Text Exact Reported	6 · Results and Discussion · Figure S18
NiCoFe-CAT TOF for BA oxidation at 1.35 VMarked as a best value within this paper	1.31 s-1 at 1.35 V	—	—	Text Exact Reported	6 · Results and Discussion · Figure S18