cMOF Evidence Base
Spectroscopy — Conductive Metal-Organic Framework for High Energy Sodium-Ion Hybrid Capacitors

Measurement evidence

Spectroscopy

Conductive Metal-Organic Framework for High Energy Sodium-Ion Hybrid Capacitors · Dong S., Wu L., Xue M. et al. · ACS Applied Energy Materials · 2021 · 1568-1574

2 measurement groups · 6 results

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

ex situ XPS at selected states of charge

X-ray photoelectron spectroscopy

Ni-MOF working electrode · Electrode

Ni-MOF electrodes analysed between 0.5-3.0 V and 0.01-3.0 V after Ar plasma etching of 10 nm.

Geometry
Na half-cell electrode samples
Context
Ni-MOF composite working electrode after electrochemical states of charge
Measurement source
4 · 3.3 Redox Mechanism Analysis · Figure 3 and Figure S6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Ni(II) Ni 2p3/2 binding energy854.5 eV assigned to Ni(II)——Text
Exact Reported		4 · 3.3 · Figure 3b
Ni(II) Ni 2p1/2 binding energy871.8 eV assigned to Ni(II)——Text
Exact Reported		4 · 3.3 · Figure 3b
Ni(I) binding energy below 0.5 VNi(II) at 854.5 eV partly reduced to Ni(I) at 853.7 eV below 0.5 V——Text
Exact Reported		4 · 3.3 · Figure S6
Ni valence stability in 0.5-3.0 V windowNi remains divalent between 0.5 and 3.0 V——Text
Qualitative		4 · 3.3 · Figure 3b

X-ray photoelectron spectroscopy, N 1s and Ni 2p

X-ray photoelectron spectroscopy

as-prepared Ni-MOF powder · Powder

Pristine Ni-MOF chemical-state analysis; XPS source Al-Kalpha 1486.6 eV in SI methods.

Context
pristine Ni-MOF powder
Measurement source
3 · 3.1 Physical Characteristic Analysis · Figure 1f
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
N 1s benzoid amine binding energy399.1 eV assigned to C-N benzoid amine——Text
Exact Reported		3 · 3.1 · Figure 1f
N 1s quinoid imine binding energy397.6 eV assigned to C=N quinoid imine——Text
Exact Reported		3 · 3.1 · Figure 1f