Spectroscopy — Iron-Based 2D Conductive Metal-Organic Framework Nanostructure with Enhanced Pseudocapacitance

Measurement evidence

Spectroscopy

Iron-Based 2D Conductive Metal-Organic Framework Nanostructure with Enhanced Pseudocapacitance · Stodolka M., Choi J.Y., Flood J. et al. · ACS Applied Nano Materials · 2022 · 2156-2162

4 measurement groups · 10 results

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

X-band continuous-wave EPR spectroscopy

Fe-HHTP powder · Powder

Bruker Elexsys E 500 with SHQE resonator; microwave power 6.325 mW, modulation amplitude 4 G, modulation frequency 100 kHz.

Context
pristine Fe-HHTP powder
Measurement source
main p.4 · Results and Discussion · Figure 5a
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
EPR high-spin Fe(III) G valuenear G = 1620Text
Approximate
main p.4 · Results and Discussion · Figure 5a
EPR organic monoradical G valueG = 3509Text
Exact Reported
main p.4 · Results and Discussion · Figure 5a

ATR FT-IR spectroscopy and thermogravimetric analysis

Fe-HHTP powder · Powder

Cary 630 ATR FT-IR; TGA under nitrogen to 600 deg C at 10 deg C min-1.

Atmosphere
nitrogen for TGA
Context
pristine Fe-HHTP powder
Measurement source
main p.2 · Results and Discussion · Figure S8
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
DMF C-H formyl stretch~2900 cm-1Text
Approximate
main p.2 · Results and Discussion · Figure S8a
DMF C=O stretch~1640 cm-1Text
Approximate
main p.2 · Results and Discussion · Figure S8a
DMF C(=O)-N out-of-plane bending~700 cm-1Text
Approximate
main p.2 · Results and Discussion · Figure S8a
TGA coordinated DMF loss temperatureweight loss step up to 150 deg C423.15 KText
Rounded Reported
main p.2 · Results and Discussion · Figure S8b

Solution-phase UV-vis-NIR spectroscopy and Tauc analysis

Fe-HHTP powder · Powder

CARY 5000 UV-Vis spectrophotometer; sample dispersed in isopropyl alcohol.

Context
pristine Fe-HHTP powder
Measurement source
main p.4 · Results and Discussion · Figure 4a
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
strong absorption wavelength650 nmText
Rounded Reported
main p.4 · Results and Discussion · Figure 4a
optical band gapMarked as a best value within this paper1.11 eVText
Exact Reported
main p.4 · Results and Discussion · Figure 4a inset

High-resolution Fe 2p X-ray photoelectron spectroscopy

Fe-HHTP powder · Powder

K-alpha spectrometer with Al Kalpha X-ray source.

Context
pristine Fe-HHTP powder
Measurement source
main p.4 · Results and Discussion · Figure 5b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Fe(II) Fe 2p3/2 multiplet/satellite binding energies708.53, 709.73, 710.43 eV; satellite 714.98 eVText
Exact Reported
main p.4 · Results and Discussion · Figure 5b
Fe(III) Fe 2p3/2 multiplet/satellite binding energies710.93, 711.68, 712.53, 713.53 eV; satellite 717.93 eVText
Exact Reported
main p.4 · Results and Discussion · Figure 5b