Spectroscopy — Facet Engineering in Ultrathin Two-Dimensional NiFe Metal-Organic Frameworks by Coordination Modulation for Enhanced Electrocatalytic Water Oxidation

3 measurement groups · 19 results

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

NiFe-MOF NSs · Nanosheet

FTIR-8400S, 400-4000 cm^-1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
asymmetric COO vibration	1569 cm-1	—	—	Text Exact Reported	S12 · Supporting Information · Figure S11
symmetric COO vibration	1375 cm-1	—	—	Text Exact Reported	S12 · Supporting Information · Figure S11
Ni/Fe-O vibrationMarked as a best value within this paper	462 cm-1	—	—	Text Exact Reported	S12 · Supporting Information · Figure S11
OH stretching vibration	3585 cm-1	—	—	Text Exact Reported	S12 · Supporting Information · Figure S11

NiFe-MOF NSs · Nanosheet

PHI QUANTERA II, monochromatic Al K alpha; calibrated to C 1s

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
C 1s C-C binding energy	284.8 eV	—	—	Text Exact Reported	S13 · Supporting Information · Figure S12
C 1s O-C=O binding energy	288.1 eV	—	—	Text Exact Reported	S13 · Supporting Information · Figure S12
Fe 2p3/2 binding energy	712.7 eV	—	—	Text Exact Reported	S13 · Supporting Information · Figure S12
Ni 2p3/2 binding energy	856.2 eV	—	—	Text Exact Reported	S13 · Supporting Information · Figure S12
O 1s M-O binding energy	531.6 eV	—	—	Text Exact Reported	S13 · Supporting Information · Figure S12

NiFe-MOF NSs catalyst ink on glassy carbon · Electrode

NiFe-MOF NSs after 12 h water oxidation at 10 mA cm^-2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
NiFe-MOF NS post-OER INiII/INiIII ratioMarked as a best value within this paper	0.37	—	—	Text Exact Reported	10899 · Results and Discussion · Figure S30
post-OER lateral size	around 100 nm after 12 h OER	—	—	Text Approximate	10898 · Results and Discussion · Figure S28
fraction of Ni oxidised to Ni3+ after OER	60% of the Ni ... oxidized to Ni3+	—	—	Text Rounded Reported	10899 · Results and Discussion · Figure 5d
post-OER NiO lattice spacing	0.210 nm	—	—	Text Exact Reported	10898 · Results and Discussion · Figure 5b
post-OER NiOOH lattice spacing	0.317 nm	—	—	Text Exact Reported	10898 · Results and Discussion · Figure 5b
post-OER O 1s metal-oxygen binding energy	531.5 eV	—	—	Text Exact Reported	10899 · Results and Discussion · Figure 5e
post-OER O 1s hydroxyl binding energy	532.2 eV	—	—	Text Exact Reported	10899 · Results and Discussion · Figure 5e
post-OER Raman Fe-O peak	~695.1 cm-1	—	—	Text Approximate	10898 · Results and Discussion · Figure 5c
post-OER Raman Ni-O/Fe-O peak	~457.7 cm-1	—	—	Text Approximate	10898 · Results and Discussion · Figure 5c
post-OER Raman NiOOH peak	~529.8 cm-1	—	—	Text Approximate	10898 · Results and Discussion · Figure 5c