Electrochemistry Application — Multimetallic Prussian Blue Analogue Nanoparticles for Oxygen Evolution Reaction and Efficient Benzyl Alcohol Oxidation

9 measurement groups · 34 results

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

Chronoamperometric benzyl alcohol oxidation and product analysis

Chronoamperometry

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

Three-electrode system, MnFeCoNiCu-PBA working electrode, graphitic carbon rod counter electrode, Ag/AgCl reference, 10 mL cell, 1.48 V vs RHE for 4 h

Geometry: PBA@CC working electrode
Context: PBA/carbon-cloth composite electrode
Measurement source: 15765; 15767 · Conditions for Benzyl Alcohol Oxidation; Electrochemical Performance · Figure 3c; Figure S13-S14

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Experimental charge passed during complete BA oxidation	392.80 C	—	—	Text Exact Reported	15766 · Calculation of Faradaic Efficiency for BA Oxidation
Purity-corrected theoretical charge for complete BA conversion	Q100% FE estimated to be 396.84 C	—	—	Calculated From Reported Exact Reported	15766 · Calculation of Faradaic Efficiency for BA Oxidation
BA to benzoic acid conversion after 4 h at 1.48 VMarked as a best value within this paper	99.8% conversion after 4 h	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure 3c; Figure S13
BA oxidation FE over three CA cycles	>98% throughout three CA cycles	—	>	Text Approximate	S13 · Supporting Information · Figure S19
Faradaic efficiency for BA oxidation at 1.48 VMarked as a best value within this paper	98.9% Faradaic efficiency	—	—	Calculated From Reported Exact Reported	15766-15767 · Calculation of Faradaic Efficiency for BA Oxidation; Electrochemical Performance
Benzoic acid selectivity after BA oxidationMarked as a best value within this paper	100% selectivity	—	—	Text Exact Reported	15765; 15767 · Separation of Benzoic Acid; Electrochemical Performance · Figure S14

Chronoamperometry (CA) stability for OER

Chronoamperometry

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

1.0 M KOH; specific constant potential; presented without iR compensation

Geometry: 1 cm2 PBA@CC electrode
Context: PBA/carbon-cloth composite electrode
Measurement source: 15767 · Electrochemical Performance · Figure S12

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER CA stability duration without significant deterioration	no significant deterioration over 72 h	—	—	Text Exact Reported	S9 · Supporting Information · Figure S12

Double-layer capacitance (Cdl) and ECSA analysis

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

CV in non-faradaic potential range; ECSA = Cdl/Cs

Geometry: PBA@CC electrode
Context: PBA/carbon-cloth composite electrodes
Measurement source: S12-S13 · Supporting Information · Figure S17

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cdl of MnFe-PBA	1.63 mF cm-2	—	—	Caption Exact Reported	S12-S13 · Supporting Information · Figure S17
Cdl of MnFeCo-PBA	2.87 mF cm-2	—	—	Caption Exact Reported	S12-S13 · Supporting Information · Figure S17
Cdl of MnFeCoNi-PBA	3.88 mF cm-2	—	—	Caption Exact Reported	S12-S13 · Supporting Information · Figure S17
Cdl of MnFeCoNiCu-PBAMarked as a best value within this paper	5.91 mF cm-2	—	—	Caption Exact Reported	S12-S13 · Supporting Information · Figure S17
ECSA of MnFeCoNiCu-PBA electrodeMarked as a best value within this paper	147.75 cm2	—	—	Caption Exact Reported	S13 · Supporting Information · Figure S17
ECSA of MnFe-PBA	40.75 cm2	—	—	Caption Exact Reported	S12-S13 · Supporting Information · Figure S17
ECSA of MnFeCo-PBA	71.75 cm2	—	—	Caption Exact Reported	S12-S13 · Supporting Information · Figure S17
ECSA of MnFeCoNi-PBA	97.00 cm2	—	—	Caption Exact Reported	S12-S13 · Supporting Information · Figure S17

Chronoamperometric benzyl alcohol oxidation at varied potentials

Chronoamperometry

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

Comparable conditions at 1.46 and 1.50 V vs RHE with MnFeCoNiCu-PBA nanoparticles

Geometry: PBA@CC working electrode
Context: PBA/carbon-cloth composite electrode
Measurement source: 15767 · Electrochemical Performance

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
BA oxidation Faradaic efficiency, 1st cycle	98.9%	—	—	Figure Axis Exact Reported	S13 · Supporting Information · Figure S19
BA oxidation Faradaic efficiency, 2nd cycleMarked as a best value within this paper	99.2%	—	—	Figure Axis Exact Reported	S13 · Supporting Information · Figure S19
BA oxidation Faradaic efficiency, 3rd cycle	98.3%	—	—	Figure Axis Exact Reported	S13 · Supporting Information · Figure S19
BA oxidation Faradaic efficiency at 1.46 V vs RHE	94.2%	—	—	Text Exact Reported	15767 · Electrochemical Performance
BA oxidation Faradaic efficiency at 1.50 V vs RHE	89.3%	—	—	Text Exact Reported	15767 · Electrochemical Performance
BA oxidation FE range for lower-metal PBA controls	75 to 85%	—	—	Text Range	15767 · Electrochemical Performance

Hydrogen production measurement in H-type two-electrode electrochemical cell

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

Cathodic H2 production compared during OER and BA oxidation

Geometry: H-type electrochemical cell in two-electrode arrangement
Context: PBA/carbon-cloth composite electrode context
Measurement source: 15767 · Electrochemical Performance · Figure 3d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Hydrogen production enhancement with BA oxidationMarked as a best value within this paper	2.2 times increased H2 generation	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure 3d

Linear sweep voltammetry (LSV) for benzyl alcohol oxidation

Voltammetry

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

1.0 M aqueous KOH with 0.1 M benzyl alcohol, pH 13.8, three-electrode cell, 70% iR correction

Geometry: 1 cm2 PBA@CC electrode
Context: PBA/carbon-cloth composite electrodes
Measurement source: 15765; 15767 · Conditions for Benzyl Alcohol Oxidation; Electrochemical Performance · Figure 3b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Approximate BA oxidation potential at 100 mA cm-2 for MnFeCo-PBA	approximately 1.86 V vs RHE at 100 mA cm-2 from Figure 3b	—	visual estimate from plotted axis	Figure Axis Approximate	15766 · Figure 3 · Figure 3b
Approximate BA oxidation potential at 100 mA cm-2 for MnFeCoNi-PBA	approximately 1.74 V vs RHE at 100 mA cm-2 from Figure 3b	—	visual estimate from plotted axis	Figure Axis Approximate	15766 · Figure 3 · Figure 3b
BA oxidation potential at 100 mA cm-2 for MnFeCoNiCu-PBAMarked as a best value within this paper	1.57 V vs RHE at 100 mA cm-2	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure 3b

Linear sweep voltammetry (LSV) for OER

Voltammetry

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

1.0 M aqueous KOH, pH 13.8, three-electrode cell, 70% iR correction; PBA@CC working electrode, graphite carbon rod counter electrode, Ag/AgCl reference

Geometry: 1 cm2 carbon cloth electrode
Context: PBA/carbon-cloth composite electrode
Measurement source: 15765; 15767 · Electrochemical Measurements; Electrochemical Performance · Figure 3a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Maximum OER current density for MnFe-PBA	41 mA cm-2 at 1.91 V vs RHE	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure 3a
OER potential at 100 mA cm-2 for MnFeCo-PBA	1.82 V vs RHE at 100 mA cm-2	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure 3a
OER potential at 100 mA cm-2 for MnFeCoNi-PBA	1.73 V vs RHE at 100 mA cm-2	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure 3a
OER potential at 100 mA cm-2 for MnFeCoNiCu-PBAMarked as a best value within this paper	1.67 V vs RHE at 100 mA cm-2	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure 3a

OER overpotential comparison table

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

1 M aqueous KOH; current density 10 mA cm-2; comparison with literature catalysts.

Atmosphere: aqueous alkaline electrolyte
Geometry: carbon cloth supported catalyst electrode
Context: PBA on carbon cloth working electrode
Measurement source: S7 · Supporting Information · Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2 for MnFeCoNiCu-PBAMarked as a best value within this paper	260 mV at 10 mA cm-2 in 1 M aqueous KOH	—	—	SI Table Exact Reported	S7 · Supporting Information · Table S2

Tafel analysis from OER polarisation

Tafel and polarisation analysis

MnFeCoNiCu-PBA@carbon cloth working electrode · Electrode

Tafel slope determined at potential where current density reached up to 10 mA cm-2

Geometry: 1 cm2 PBA@CC electrode
Context: PBA/carbon-cloth composite electrodes
Measurement source: 15765; 15767 · Electrochemical Measurements; Electrochemical Performance · Figure S11

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER Tafel slope for MnFe-PBA	248 mV dec-1	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure S11
OER Tafel slope for MnFeCo-PBA	161 mV dec-1	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure S11
OER Tafel slope for MnFeCoNi-PBA	134 mV dec-1	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure S11
OER Tafel slope for MnFeCoNiCu-PBAMarked as a best value within this paper	128 mV dec-1	—	—	Text Exact Reported	15767 · Electrochemical Performance · Figure S11