cMOF Evidence Base
Spectroscopy — Development of a UiO-Type Thin Film Electrocatalysis Platform with Redox-Active Linkers

Measurement evidence

Spectroscopy

Development of a UiO-Type Thin Film Electrocatalysis Platform with Redox-Active Linkers · Johnson B.A., Bhunia A., Fei H. et al. · Journal of the American Chemical Society · 2018 · 2985-2994

2 measurement groups · 15 results

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

FTIR-ATR, 1H NMR after HF digestion, and TGA

Infrared spectroscopyNuclear magnetic resonanceThermogravimetric analysis

Zr(dcphOH-NDI) bulk microcrystalline powder · Powder

ATR-FTIR 4000-450 cm^-1; MOF digested with 25 uL HF in DMSO-d6 for NMR; TGA in air from 25 to 800 deg C at 5 deg C/min after drying.

Temperature
293 for NMR; TGA range 298-1073
Atmosphere
air for TGA; N2 drying before TGA
Context
pristine framework
Measurement source
main p.3 · Synthesis and Characterization · Figure 2c,d; Figure S3-S4
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
FTIR carbonyl stretch range1700-1600 cm^-1——Text
Range		main p.3 · Synthesis and Characterization · Figure 2c
FTIR broad OH stretch centreca. 3175 cm^-1——Text
Approximate		main p.3 · Synthesis and Characterization · Figure 2c
TGA decomposition onset/rangeca. 400-450 deg C——Text
Range		main p.3 · Synthesis and Characterization · Figure 2d
Initial TGA mass-loss range100-200 deg C, attributed to guest solvent removal——Text
Range		main p.3 · Synthesis and Characterization · Figure 2d

UV-vis spectroelectrochemistry in DMF

UV-visible and optical absorption spectroscopy

Zr(dcphOH-NDI)@FTO thin film · Thin Film

Thin film in 10 mm quartz cuvette with Pt counter electrode and Ag/AgNO3 reference; 0.8 M KPF6 or n-Bu4NPF6 in DMF; potentials vs Fc+/0.

Atmosphere
DMF electrolyte
Geometry
MOF thin film electrode in quartz spectroelectrochemical cell
Context
pristine framework thin film
Measurement source
main p.6 · Electrochemical and Optical Properties · Figure 8; Figure S14-S17
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Absorbance at 385 nm, 0 V0.805——SI Table
Exact Reported		SI p.S14 · Percentage of redox-active linkers
Absorbance at 475 nm, -1.26 V0.737——SI Table
Exact Reported		SI p.S14 · Percentage of redox-active linkers
Equivalent diffusion coefficient with KPF6 in DMFMarked as a best value within this paper(5.4 +/- 1.1) x 10^-11 cm2 s^-1—+/- 1.1 x 10^-11 cm2 s^-1Caption
Exact Reported		SI p.S10 · Figure captions · Figure S17
Equivalent diffusion coefficient with n-Bu4NPF6 in DMF(4.0 +/- 2.5) x 10^-12 cm2 s^-1—+/- 2.5 x 10^-12 cm2 s^-1Caption
Exact Reported		SI p.S10 · Figure captions · Figure S17
Direct electronic conductivityNot reported——Qualitative
Qualitative		main p.1 · Abstract
Redox-active NDI fraction in DMFMarked as a best value within this paper97%0.97 fraction—Calculated From Reported
Exact Reported		SI p.S14 · Percentage of redox-active linkers
NDI dianion absorption band 1394 nm at -1.76 V——Text
Exact Reported		main p.6 · Electrochemical and Optical Properties · Figure 8
NDI dianion absorption band 2416 nm at -1.76 V——Text
Exact Reported		main p.6 · Electrochemical and Optical Properties · Figure 8
NDI radical anion absorption band 1475 nm at -1.26 V——Text
Exact Reported		main p.6 · Electrochemical and Optical Properties · Figure 8
NDI radical anion absorption band 2608 nm at -1.26 V——Text
Exact Reported		main p.6 · Electrochemical and Optical Properties · Figure 8
NDI radical anion absorption band 3780 nm at -1.26 V——Text
Exact Reported		main p.6 · Electrochemical and Optical Properties · Figure 8