Electrochemistry Application — NiPd mediated by conductive metal organic frameworks with facilitated electron transfer for assaying of H2O2 released from living cells

7 measurement groups · 20 results

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

NiPd@Ni3HHTP2/GC · Electrode

Bare GC, NiPd/GC, Ni3HHTP2/GC and NiPd@Ni3HHTP2/GC in N2-saturated 10 mM PBS, pH 7.4.

Atmosphere: N2-saturated electrolyte
Geometry: three-electrode cell; Ag/AgCl reference; Pt counter
Context: target composite compared with pristine and nanoparticle controls
Measurement source: 4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3A

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CV response without H2O2	only capacitive current observed	—	—	Text Qualitative	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3A

NiPd/GC · Electrode

Bare GC background and NiPd/GC electrode in 0.1 M H2SO4; scan rate 50 mV s-1.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Hydrogen redox peak pair at NiPd/GC	around 0 V vs Ag/AgCl	—	—	Text Approximate	3 · 3.1. Characterization of hybrid nanomaterials · Fig. S1
Palladium redox peak pair at NiPd/GC	around 0.7 V vs Ag/AgCl	—	—	Text Approximate	3 · 3.1. Characterization of hybrid nanomaterials · Fig. S1

NiPd@Ni3HHTP2/GC · Electrode

CVs in 0.1 M KOH at scan rates 20-120 mV s-1; SECSA = Cdl/Cs using Cs = 40 uF cm-2.

Geometry: modified GC electrodes
Context: target composite compared with NiPd/GC and NiPd@ZIF-8/GC
Measurement source: 8. Electrochemical active surface area of different electrodes · Fig. S8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Double-layer capacitance of NiPd/GC	Cdl = 66.2 uF	—	—	Figure Axis Rounded Reported	S6 · 8. Electrochemical active surface area of different electrodes · Fig. S8D
Double-layer capacitance of NiPd@Ni3HHTP2/GCMarked as a best value within this paper	Cdl = 82.9 uF	—	—	Figure Axis Rounded Reported	S6 · 8. Electrochemical active surface area of different electrodes · Fig. S8D
Double-layer capacitance of NiPd@ZIF-8/GC	Cdl = 16.7 uF	—	—	Figure Axis Rounded Reported	S6 · 8. Electrochemical active surface area of different electrodes · Fig. S8D
Electrochemical active surface area of NiPd/GC	1.6 cm2	—	—	Figure Axis Rounded Reported	S6 · 8. Electrochemical active surface area of different electrodes · Fig. S8E
Electrochemical active surface area of NiPd@Ni3HHTP2/GCMarked as a best value within this paper	2.1 cm2	—	—	Text Rounded Reported	8. Electrochemical active surface area of different electrodes · Fig. S8
Electrochemical active surface area of NiPd@ZIF-8/GC	0.2 cm2	—	—	Text Rounded Reported	8. Electrochemical active surface area of different electrodes · Fig. S8

NiPd@Ni3HHTP2/GC · Electrode

N2-saturated 10 mM PBS (pH 7.4) containing 5 mM H2O2; scan rate 50 mV s-1 for Fig. 3F comparisons.

Atmosphere: N2-saturated electrolyte
Geometry: modified GC working electrode, Ag/AgCl reference, Pt counter
Context: target composite compared with Ni3HHTP2/GC, NiPd/GC and NiPd@ZIF-8/GC
Measurement source: 4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3B, 3E, 3F

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
H2O2 reduction onset potential at NiPd/GC	-0.01 V vs Ag/AgCl	—	—	Text Exact Reported	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3B
H2O2 reduction onset potential at NiPd@Ni3HHTP2/GCMarked as a best value within this paper	0.10 V vs Ag/AgCl	—	—	Text Exact Reported	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3B
H2O2 reduction onset potential at NiPd@ZIF-8/GC	-0.20 V vs Ag/AgCl	—	—	Text Exact Reported	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3E-F
Cathodic peak current increase for target versus NiPd/GCMarked as a best value within this paper	jp increased by 23% at NiPd@Ni3HHTP2/GC	—	—	Text Exact Reported	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3B,F
NiPd@ZIF-8/GC jp decrease versus NiPd/GC	jp sharply decreased by 68.5% versus NiPd/GC	—	—	Text Exact Reported	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3E-F
NiPd@ZIF-8/GC jp decrease versus NiPd@Ni3HHTP2/GC	jp sharply decreased by 91.5% versus NiPd@Ni3HHTP2/GC	—	—	Text Exact Reported	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3E-F

NiPd@Ni3HHTP2/GC · Electrode

10 mV s-1 in N2-saturated 10 mM PBS (pH 7.4) containing 1.0 mM H2O2; rotating speeds 200-1600 rpm.

Atmosphere: N2-saturated electrolyte
Geometry: NiPd@Ni3HHTP2/GC on rotating disk electrode
Context: target composite electrode
Measurement source: 7. Linear sweep voltammetry (LSV) curves of NiPd@Ni3HHTP2/GC · Fig. S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Electron transfer number for H2O2 reduction	n = 1.7	—	—	Text Rounded Reported	7. Linear sweep voltammetry (LSV) curves of NiPd@Ni3HHTP2/GC · Fig. S7

NiPd@Ni3HHTP2/GC · Electrode

N2-saturated 10 mM PBS (pH 7.4) containing 1 mM H2O2; scan rates 10-200 mV s-1.

Atmosphere: N2-saturated electrolyte
Geometry: NiPd@Ni3HHTP2/GC working electrode
Context: target composite electrode
Measurement source: 5 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3C-D

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cathodic peak current versus scan-rate R2	R2 = 0.997	—	—	Figure Axis Rounded Reported	5 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3D
Scan-rate range for surface-controlled H2O2 reduction	10 to 200 mV s-1	—	—	Text Range	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3C-D
Cathodic peak current versus scan-rate slope	y = -2.67x + 3.03	—	—	Figure Axis Rounded Reported	5 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3D

Ni3HHTP2/GC · Electrode

Ni3HHTP2/GC electrochemically scanned in 10 mM PBS (pH 7.4) for 24 h.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni3HHTP2 chemical stability after CV scanning	negligible variation on morphology and XRD after 24 h	—	—	Text Qualitative	4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. S6