Spectroscopy — A Conductive Cu-Based Metal–Organic Framework Ribbon with High-Density Redox-Active Centers as Cathode for Stable High-Capacity Lithium-Ion Batteries

Measurement evidence

Spectroscopy

A Conductive Cu-Based Metal–Organic Framework Ribbon with High-Density Redox-Active Centers as Cathode for Stable High-Capacity Lithium-Ion Batteries · Yang M., Wang Y., Huang Y.-F. et al. · Angewandte Chemie - International Edition · 2025 · e202421008

3 measurement groups · 9 results

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

ex situ FTIR during lithiation/delithiation

DDA-Cu LIB cathode, low loading · Electrode

FTIR of pristine, lithiated and delithiated DDA-Cu cathode

Context
DDA-Cu cathode during cycling
Measurement source
8 · Results and Discussion · Figure S32
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
FTIR reversible redox bandsN-H 3210-3432 cm^-1 disappears on Li insertion; C=O and C=N at 1610 and 1544 cm^-1 disappear after lithiation and reappear after delithiationText
Rounded Reported
8 · Results and Discussion · Figure S32

ex situ XPS during lithiation/delithiation

DDA-Cu LIB cathode, low loading · Electrode

Pristine, discharged to 1 V, and charged to 3.8 V DDA-Cu cathodes

Context
DDA-Cu cathode during cycling
Measurement source
6-8 · Results and Discussion · Figure 4b-d
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu 2p redox changeCu2+ peaks at 934.6/954.5 eV reduce; Cu+ peaks at 932.8/952.4 eV appear after lithiationText
Rounded Reported
8 · Results and Discussion · Figure 4d
N 1s redox changeC=N peak decreases on lithiation and increases after delithiation; Cu-N peak nearly unchangedText
Qualitative
7 · Results and Discussion · Figure 4b
O 1s redox changeC=O at 532.8 eV weakens and C-O at 531.3 eV increases after lithiationText
Qualitative
7 · Results and Discussion · Figure 4c

FTIR and XPS

activated DDA-Cu MOF powder · Powder

Chemical bonding/coordination characterisation of pristine DDA-Cu

Context
pristine framework
Measurement source
3-4 · Results and Discussion · Figures S7-S8
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
FTIR N-H region3210-3432 cm^-1 weak for DDA-Cu compared with DDAText
Range
3 · Results and Discussion · Figure S7
C 1s peak assignments284.8, 286.1, 287.6, 289.1 eV for C=C/C-C, C-N, C-O and C=OText
Rounded Reported
3-4 · Results and Discussion · Figure S8
Cu 2p peak assignments934.6 and 954.5 eV for Cu2+; satellites at 938.8, 944.3, 959 and 963.4 eVText
Rounded Reported
3-4 · Results and Discussion · Figure S8
N 1s peak assignments398.7, 399.3, 400.1 eV for C=N, Cu-N and C-NText
Rounded Reported
3-4 · Results and Discussion · Figure S8
O 1s peak assignments531.3 and 532.8 eV for C-O and C=OText
Rounded Reported
3-4 · Results and Discussion · Figure S8