Spectroscopy — A Monocrystalline Coordination Polymer with Multiple Redox Centers as a High-Performance Cathode for Lithium-Ion Batteries

Measurement evidence

Spectroscopy

A Monocrystalline Coordination Polymer with Multiple Redox Centers as a High-Performance Cathode for Lithium-Ion Batteries · Luo Y., Liu J., Zhang L. · Angewandte Chemie - International Edition · 2022 · e202209458

3 measurement groups · 11 results

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

energy dispersive spectroscopy (EDS)

as-synthesised CuCA nanosheet powder · Nanosheet

Elemental composition of CuCA nanosheets.

Context
pristine CuCA powder
Measurement source
3 · Results and Discussion · Figure S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
C atomic percentage52.82%52.82 atomic %Text
Exact Reported
3 · Results and Discussion · Figure S3
Cl atomic percentage12.07%12.07 atomic %Text
Exact Reported
3 · Results and Discussion · Figure S3
Cu atomic percentage6.46%6.46 atomic %Text
Exact Reported
3 · Results and Discussion · Figure S3
O atomic percentage28.65%28.65 atomic %Text
Exact Reported
3 · Results and Discussion · Figure S3

ex situ XPS, EPR and FT-IR during discharge-charge

CuCA composite electrode in liquid-electrolyte LIB coin cell · Electrode

Coin cells at 50 mA g-1 with Celgard 2400 and 1.0 M LiTFSI in DME/DOL; electrodes disassembled in Ar glovebox, washed with DME and dried.

Atmosphere
Ar glovebox for disassembly
Geometry
cycled cathode electrodes
Context
composite CuCA cathode after selected electrochemical states
Measurement source
4 · Ex situ XPS, EPR and FT-IR tests · Figure 5b-c; Figure S13
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
pristine CuCA EPR g parallelg_parallel (gz) = 2.302.3Text
Exact Reported
6 · Results and Discussion · Figure 5c
pristine CuCA EPR g perpendicularg_perpendicular = 2.072.07Text
Exact Reported
6 · Results and Discussion · Figure 5c
C-O radical EPR signal after dischargeg = 2.002 at discharge to 2.1 V2.002Text
Exact Reported
6 · Results and Discussion · Figure 5c
C...O FT-IR peaks after discharge to 1.7 V1553, 1523 and 1427 cm-1Text
Exact Reported
6 · Results and Discussion · Figure S13
Cu reduction during dischargeCu 2p3/2 shifts to 933.3 eV and Cu2+ satellites weaken/disappear on discharge933.3 eVText
Exact Reported
6 · Results and Discussion · Figure 5b

FT-IR and XPS

as-synthesised CuCA nanosheet powder · Nanosheet

FT-IR comparison of CA, K2CA and CuCA; Cu 2p XPS for Cu chemical state.

Context
pristine CuCA powder
Measurement source
4 · Results and Discussion · Figure 3a-b; Figure S4
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu 2p1/2 binding energy in pristine CuCA954.4 eV954.4 eVText
Exact Reported
4 · Results and Discussion · Figure 3b
Cu 2p3/2 binding energy in pristine CuCA934.7 eV934.7 eVText
Exact Reported
4 · Results and Discussion · Figure 3b