Spectroscopy — High performance Li-, Na-, and K-ion storage in electrically conducting coordination polymers

Measurement evidence

Spectroscopy

High performance Li-, Na-, and K-ion storage in electrically conducting coordination polymers · Wang J., Guo X., Apostol P. et al. · Energy and Environmental Science · 2022 · 3923-3932

2 measurement groups · 4 results

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

Ex situ FTIR, elemental analysis, and XPS during charge-discharge

Li2-Co-PTtSA half-cell cathode electrode · Electrode

Li2-Co-PTtSA electrode sampled at pristine, half-charged, fully charged, half-discharged, and fully discharged states.

Geometry
cycled composite electrode
Context
composite electrode using pristine CP active material
Measurement source
p007 / article p.3929 · Results and discussion · Figure 5; Figures S14-S15
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Fully charged Li content in Li2-Co-PTtSA ex situ elemental analysisLi drops to 0.25 wt%; Co/Li = 1/0.21Text
Exact Reported
p007 / article p.3929 · Results and discussion · Figure 5C; Figure S14
Pristine Li content in Li2-Co-PTtSA ex situ elemental analysisLi 2.60 wt%; Co/Li = 1/2.15 atom ratioText
Exact Reported
p007 / article p.3929 · Results and discussion · Figure 5C; Figure S14
Cobalt oxidation state during redoxCo2+ retained throughout charge-dischargeCaption
Qualitative
p024 / SI p.24 · Figure S15 caption · Figure S15

ATR Fourier-transform infrared spectroscopy

pristine A2-TM-PTtSA powder set · Powder

Agilent Technologies Cary 630 FTIR, ATR mode, 4000-650 cm^-1, 4 cm^-1 resolution, 64 scans; before/after desolvation.

Context
pristine powders
Measurement source
p006 / SI p.6 · Materials characterizations · Figures S1-S4
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Methanol OH band removed after desolvationbroad OH band of methanol at approximately 3300 cm^-1 disappears after 180 C vacuum desolvation~Caption
Approximate
p010-p012 / SI pp.10-12 · Figure S1-S3 captions · Figures S1-S3