cMOF Evidence Base
Spectroscopy — Conjugated Copper–Catecholate Framework Electrodes for Efficient Energy Storage

Measurement evidence

Spectroscopy

Conjugated Copper–Catecholate Framework Electrodes for Efficient Energy Storage · Liu J., Zhou Y., Xie Z. et al. · Angewandte Chemie - International Edition · 2020 · 1081-1086

3 measurement groups · 8 results

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

ATR FT-IR spectroscopy

Infrared spectroscopy

As-synthesised Cu-DBC powder · Powder

Bruker Alpha spectrometer, 400-4000 cm-1.

Context
Cu-DBC compared with 8OH-DBC ligand.
Measurement source
1083 · Results and discussion · Figure S11
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource

Cu K-edge XANES/EXAFS

X-ray absorption spectroscopy

As-synthesised Cu-DBC powder · Powder

XAFS collected at BSRF 4B9A in transmission mode with argon and N2-filled ionization chambers; Athena/Artemis analysis.

Atmosphere
Transmission mode ionization chambers with argon and N2.
Context
Pristine Cu-DBC powder.
Measurement source
S2-S10 · Materials and Methods / Section 9 · Figures 1c, S9, S10; Table S1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
EXAFS Cu...C distanceCu...C R = 2.65 angstrom; N = 1.3; sigma2 = 3 x 10-3 angstrom2; dE = -3.0 eV—R factor 0.013 for fitSI Table
Exact Reported		S10 · Section 9. XAFS Measurement · Table S1
EXAFS Cu-O distanceCu-O R = 1.96 angstrom; N = 4.8; sigma2 = 8 x 10-3 angstrom2; dE = 8.6 eV—R factor 0.013 for fitSI Table
Exact Reported		S10 · Section 9. XAFS Measurement · Table S1

XPS, solid-state EPR, elemental analysis, TGA

X-ray photoelectron spectroscopyElectron paramagnetic resonanceBulk elemental and compositional analysisThermogravimetric analysis

As-synthesised Cu-DBC powder · Powder

XPS on Thermo ESCALAB 250XI; EPR at room temperature on Bruker a300; EA with vario EL III; TGA 20-800 C under N2 at 10 C min-1.

Temperature
room temperature for EPR; TGA 293-1073 K ramp
Atmosphere
N2 for TGA
Context
Pristine Cu-DBC powder.
Measurement source
S11-S13 · Sections 11-14 · Figures S12-S14; Tables S2-S4
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Elemental analysis carbon foundFound C = 48.38%; calculated C = 48.23%——SI Table
Exact Reported		S12 · Section 13. Elemental Analysis · Table S4
Elemental analysis hydrogen foundFound H = 2.51%; calculated H = 2.49%——SI Table
Exact Reported		S12 · Section 13. Elemental Analysis · Table S4
EPR g valueg = 2.09——Text
Exact Reported		1083 · Results and discussion · Figure S13
Thermal stability limitthermally stable up to 200 C473.15 K—Text
Rounded Reported		1083 · Results and discussion · Figure S14
XPS Cu2+ component position933.72 eV; FWHM 2.28; area 87.53%——SI Table
Exact Reported		S11 · Section 11. XPS Measurement · Table S2
XPS trace Cu+ component position932.18 eV; FWHM 1.12; area 12.47%——SI Table
Exact Reported		S11 · Section 11. XPS Measurement · Table S2