Electrochemistry Application — Photocatalytic Hydrogen Peroxide Production through Functionalized Semiconductive Metal-Organic Frameworks

6 measurement groups · 19 results

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

Electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

EFB-MOF/PTFE working electrode · Electrode

Nyquist plots measured under light and dark conditions for DPT-MOF, PA-MOF, and EFB-MOF.

Geometry: MOF/PTFE electrode composite in electrochemical cell.
Context: Electrode composite.
Measurement source: main p.6, article p.11324 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 5b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EIS light-induced resistance trendMarked as a best value within this paper	Charge transport resistance reduced after light irradiation for all samples; decrease most pronounced for EFB-MOF	—	—	Qualitative Qualitative	main p.6, article p.11324 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 5b

Mott-Schottky analysis

EFB-MOF/PTFE working electrode · Electrode

Electrochemical Mott-Schottky plots at 1, 2, and 3 kHz in 0.5 M Na2SO4 using Ag/AgCl reference.

Geometry: Three-electrode cell.
Context: MOF/PTFE electrode composite used for electrochemical measurement.
Measurement source: SI p.S14 · Mott-Schottky plot · Figure S18

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DPT-MOF Mott-Schottky labelled potential	-0.03 V	—	—	Figure Axis Approximate	SI p.S14 · Mott-Schottky plot · Figure S18a
EFB-MOF Mott-Schottky labelled potential	0.12 V	—	—	Figure Axis Approximate	SI p.S14 · Mott-Schottky plot · Figure S18c
PA-MOF Mott-Schottky labelled potential	0.29 V	—	—	Figure Axis Approximate	SI p.S14 · Mott-Schottky plot · Figure S18b

Open-circuit voltage decay (OCVD)

EFB-MOF/PTFE working electrode · Electrode

MOF/PTFE electrode on Pt disc; light on/off decay response.

Geometry: Three-electrode cell.
Context: MOF/PTFE electrode composite.
Measurement source: main p.5, article p.11323 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EFB-MOF OCVD qualitative performanceMarked as a best value within this paper	Higher open-circuit voltage and slower photovoltage decay than DPT-MOF and PA-MOF	—	—	Qualitative Qualitative	main p.5, article p.11323 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4d

Visible-light photocatalytic H2O2 production

EFB-MOF powder · Powder

5 mg MOF in 30 mL deionised water, O2 bubbled 30 min in dark, 300 W Xe lamp, lambda > 420 nm; H2O2 quantified by Ce(SO4)2 UV-vis method.

Atmosphere: O2-saturated water unless otherwise specified
Geometry: Quartz-based reactor.
Context: Powder catalyst suspension.
Measurement source: SI p.S2 · Photocatalytic H2O2 production · Figure 4a; Table S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Dark-control H2O2 detection	No H2O2 detected under dark environments	—	—	Text Qualitative	main p.5, article p.11323 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4a
DPT-MOF H2O2 production rate in air-bubbled water	~450 umol g-1 h-1	—	—	Figure Axis Approximate	main p.4, article p.11322 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4a
DPT-MOF H2O2 production rate in O2-saturated water	580 umol g-1 h-1	—	Figure 4a shows an error bar; numeric uncertainty not reported in text.	Text Exact Reported	main p.5, article p.11323 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4a
EFB-MOF apparent quantum yield with ethanolMarked as a best value within this paper	2.78% at 410 nm	—	—	SI Table Exact Reported	SI p.S15 · Comparison with other state-of-the-art H2O2 catalysts · Table S3
EFB-MOF apparent quantum yield in water	1.03% at 410 nm	—	—	SI Table Exact Reported	SI p.S15 · Comparison with other state-of-the-art H2O2 catalysts · Table S3
EFB-MOF H2O2 production rate in air-bubbled water	~1250 umol g-1 h-1	—	—	Figure Axis Approximate	main p.4, article p.11322 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4a
EFB-MOF H2O2 production rate with ethanol hole scavengerMarked as a best value within this paper	4270 umol g-1 h-1	—	Figure 4e shows an error bar; numeric uncertainty not reported in text.	Text Exact Reported	main p.5, article p.11323 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4e; Table S3
EFB-MOF H2O2 production rate in O2-saturated waterMarked as a best value within this paper	1676 umol g-1 h-1	—	Figure 4a shows an error bar; numeric uncertainty not reported in text.	Text Exact Reported	main p.1, article p.11319 · Abstract · Figure 4a; Table S3
PA-MOF H2O2 production rate in air-bubbled water	~750 umol g-1 h-1	—	—	Figure Axis Approximate	main p.4, article p.11322 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4a
PA-MOF H2O2 production rate in O2-saturated water	880 umol g-1 h-1	—	Figure 4a shows an error bar; numeric uncertainty not reported in text.	Text Exact Reported	main p.5, article p.11323 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4a

Photocurrent measurement

Photoresponse and photoelectrochemistry

EFB-MOF/PTFE working electrode · Electrode

MOF on 1 cm2 ITO working electrode; 0.4 V vs Ag/AgCl; visible light irradiation; 0.5 M Na2SO4 electrolyte.

Geometry: Three-electrode cell with ITO working electrode, Ag/AgCl reference, Pt counter.
Context: MOF/PTFE electrode composite.
Measurement source: main p.5, article p.11323 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DPT-MOF steady photocurrent	~3 uA cm-2	—	—	Figure Axis Approximate	main p.4, article p.11322 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4b
EFB-MOF steady photocurrentMarked as a best value within this paper	~20 uA cm-2	—	—	Figure Axis Approximate	main p.4, article p.11322 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4b
PA-MOF steady photocurrent	~17 uA cm-2	—	—	Figure Axis Approximate	main p.4, article p.11322 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure 4b

Photocatalytic cycling stability with PXRD/FTIR checks

Infrared spectroscopy X-ray diffraction and scattering

EFB-MOF powder · Powder

EFB-MOF H2O2 production over five cycles; each data point at a 15 min interval; PXRD and FTIR before and after irradiation.

Atmosphere: O2-saturated water
Context: Powder catalyst suspension.
Measurement source: SI p.S18 · Stability test · Figure S23

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EFB-MOF retained photocatalytic activity after three cycles	98% after three cycles	0.98 fraction retained	—	Text Exact Reported	main p.6, article p.11324 · Photocatalytic H2O2 Production and Mechanistic Insights · Figure S23a