Spectroscopy — A Triptycene-Based 2D MOF with Vertically Extended Structure for Improving the Electrocatalytic Performance of CO2 to Methane

Measurement evidence

Spectroscopy

A Triptycene-Based 2D MOF with Vertically Extended Structure for Improving the Electrocatalytic Performance of CO2 to Methane · Lv J., Li W., Li J. et al. · Angewandte Chemie - International Edition · 2023 · e202217958

3 measurement groups · 10 results

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

Electron paramagnetic resonance spectroscopy

2D-vc-MOF(Cu) blue-black powder · Powder

EPR with sweep width 1500 G and centre field 3500 G.

Context
pristine target MOF
Measurement source
3 · The Synthesis and Characterization of 2D-vc-MOF(Cu) · Figure S9
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
EPR semiquinone g valueg = 2.07Text
Exact Reported
3 · The Synthesis and Characterization of 2D-vc-MOF(Cu) · Figure S9

Cu K-edge XANES and EXAFS fitting

2D-vc-MOF(Cu) blue-black powder · Powder

Cu valence and local coordination analysis; EXAFS processed with Athena/Artemis.

Context
pristine target MOF
Measurement source
2 · The Synthesis and Characterization of 2D-vc-MOF(Cu) · Figure 2b-c; Table S1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu coordination numbercoordination number is 4 for the Cu nodeText
Exact Reported
2 · The Synthesis and Characterization of 2D-vc-MOF(Cu) · Figure 2c; Table S1
EXAFS fitted Cu-C distanceR = 2.68 +/- 0.15 A; CN = 4; sigma2 = 0.0178+/-0.15 ASI Table
Exact Reported
24 · 4. Supporting Tables · Table S1
EXAFS fitted Cu-O distanceR = 1.92 +/- 0.07 A; CN = 4; sigma2 = 0.0051+/-0.07 ASI Table
Exact Reported
24 · 4. Supporting Tables · Table S1
EXAFS Cu-O interaction distance, main-text peak1.89 AText
Exact Reported
2 · The Synthesis and Characterization of 2D-vc-MOF(Cu) · Figure 2c
Cu K-edge energy8985 eV; close to CuO, Cu valency +2Text
Exact Reported
2 · The Synthesis and Characterization of 2D-vc-MOF(Cu) · Figure 2b

X-ray photoelectron spectroscopy

2D-vc-MOF(Cu) blue-black powder · Powder

Survey, high-resolution Cu 2p, C 1s, and O 1s spectra.

Context
pristine target MOF
Measurement source
8-9, 24 · Supporting Figures and Tables · Figures S8-S10; Tables S2-S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu 2p1/2 XPS binding energy954.5 eV, area 17.71%, FWHM 4.04SI Table
Exact Reported
24 · 4. Supporting Tables · Table S2
Cu 2p3/2 XPS binding energy934.3 eV, area 42.17%, FWHM 3.89SI Table
Exact Reported
24 · 4. Supporting Tables · Table S2
O 1s C=O binding energy531.5 eV, area 44.15%, FWHM 2.25SI Table
Exact Reported
24 · 4. Supporting Tables · Table S3
O 1s C-O binding energy533.0 eV, area 55.85%, FWHM 2.56SI Table
Exact Reported
24 · 4. Supporting Tables · Table S3