Spectroscopy — Conductive Co-based metal organic framework nanostructures for excellent potassium- and lithium-ion storage: kinetics and mechanism studies

Measurement evidence

Spectroscopy

Conductive Co-based metal organic framework nanostructures for excellent potassium- and lithium-ion storage: kinetics and mechanism studies · Mao P., Fan H., Liu C. et al. · Sustainable Energy and Fuels · 2022 · 4075-4084

3 measurement groups · 9 results

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

ex situ XPS, FTIR, and XRD for lithiation/delithiation

Co-CAT MOF LIB anode electrode · Electrode

Fresh, lithiated, and delithiated Co-CAT MOF electrodes analysed for C 1s, Co 2p, FTIR, and XRD changes.

Geometry
Li half-cell electrode states
Context
composite Co-CAT MOF electrode after electrochemical states
Measurement source
SI p020 · Figure S16 caption · Fig. S16
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
new FTIR absorption during lithiationnear 1639 cm^-1nearText
Approximate
4082 · Results and discussion · Fig. S16E
lithiated C-Li C 1s peak289.7 eVText
Exact Reported
4082 · Results and discussion · Fig. S16A-C

ex situ XPS, FTIR, and Raman during potassiation/depotassiation

Co-CAT MOF PIB anode electrode · Electrode

Fresh, potassiated, and depotassiated Co-CAT MOF electrodes analysed to infer redox sites and reversibility.

Geometry
K half-cell electrode states
Context
composite Co-CAT MOF electrode after electrochemical states
Measurement source
4080 · Results and discussion · Fig. 6; Fig. S9
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
potassiated C 1s K-pi interaction peak 1292.8 eVText
Exact Reported
4080 · Results and discussion · Fig. 6B
potassiated C 1s K-pi interaction peak 2295.6 eVText
Exact Reported
4080 · Results and discussion · Fig. 6B
calculated theoretical capacity for 8-electron K storage785.4 mA h g^-1Calculated From Reported
Exact Reported
4081 · Results and discussion · Eqn 6; Fig. S10

XPS and FTIR

as-synthesised Co-CAT MOF powder · Powder

XPS survey/high-resolution C 1s, O 1s, Co 2p; FTIR 4000-400 cm^-1 compared with HHTP ligand.

Context
pristine Co-CAT MOF powder
Measurement source
4077 · Results and discussion · Fig. 2B-E; Fig. S1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
C 1s C=C binding energy284.1 eVText
Exact Reported
4077 · Results and discussion · Fig. 2B
Co 2p3/2 binding energy781.3 eVText
Exact Reported
4077 · Results and discussion · Fig. 2D
FTIR C=C vibration1468 cm^-1Text
Exact Reported
4077 · Results and discussion · Fig. 2E
FTIR O-H vibration3410 cm^-1Text
Exact Reported
4077 · Results and discussion · Fig. 2E