Spectroscopy — Interconnected Lamellar 3D Semiconductive PCP for Rechargeable Aqueous Zinc Battery Cathodes

4 measurement groups · 16 results

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

As-prepared VO-HHTP black powder · Powder

488 nm laser; peak assignment of V=O, V-O, V-O-V, G and D bands.

Context: pristine framework powder
Measurement source: p.3 / article p.2411386-3 · Results and Discussion · Figure 2e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
symmetric V1-O6-V2	403 cm-1	—	—	Text Rounded Reported	p.3 / article p.2411386-3 · Results and Discussion · Figure 2e
V1-O2,4 / V1-O3,5 stretching	522 cm-1	—	—	Text Rounded Reported	p.3 / article p.2411386-3 · Results and Discussion · Figure 2e
V1-O2,4 / V1-O3,5 stretching	689 cm-1	—	—	Text Rounded Reported	p.3 / article p.2411386-3 · Results and Discussion · Figure 2e
asymmetric V1-O6-V2	887 cm-1	—	—	Text Rounded Reported	p.3 / article p.2411386-3 · Results and Discussion · Figure 2e
V1=O1 stretching	988 cm-1	—	—	Text Rounded Reported	p.3 / article p.2411386-3 · Results and Discussion · Figure 2e

Charged/discharged VO-HHTP cathodes for ex situ characterisation · Electrode

Cathodes at charged to 1.5 V, discharged to 0.75/0.2 V, recharged states; evaluates framework stability and ligand/vanadium redox.

Atmosphere: post-mortem/ex situ
Geometry: cycled cathode samples
Context: 50 wt% VO-HHTP composite cathodes at electrochemical states
Measurement source: p.6-p.7 / article p.2411386-6 to 7 · Results and Discussion · Figure 5; Figures S19-S21

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Basic zinc salt by-product reversibility	BZS peak appears after discharge and disappears after recharge	—	—	Qualitative Qualitative	p.6 / article p.2411386-6 · Results and Discussion · Figure 5a; Figure S19
Framework stability during redox	no noticeable shifts in major PXRD peak positions	—	—	Qualitative Qualitative	p.6 / article p.2411386-6 · Results and Discussion · Figure 5a
C=O discharge products	C=O reduced to C-OH and C-O-/Zn2+	—	—	Qualitative Qualitative	p.7 / article p.2411386-7 · Results and Discussion · Figure S20
Two-step redox mechanism	HHTP ligand at high-voltage plateau; vanadium at low-voltage plateau	—	—	Qualitative Qualitative	p.7 / article p.2411386-7 · Results and Discussion · Figure 5e
Maximum V valence during cycle	4.51+	—	—	Text Rounded Reported	p.7 / article p.2411386-7 · Results and Discussion · Figure 5d
Minimum V valence during cycle	4.14+	—	—	Text Rounded Reported	p.7 / article p.2411386-7 · Results and Discussion · Figure 5d

As-prepared VO-HHTP black powder · Powder

V valence estimated using center-of-gravity energy from standard samples V2O3, VO2, V2O5.

Context: pristine framework powder
Measurement source: p.4 / article p.2411386-4 · Results and Discussion · Figure S9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Vanadium valence by XAFS standards	4.35+	—	—	Text Rounded Reported	p.4 / article p.2411386-4 · Results and Discussion · Figure S9c

As-prepared VO-HHTP black powder · Powder

As-prepared powder oxidation-state and ligand-functional-group analysis.

Geometry: powder spectroscopy
Context: pristine framework powder
Measurement source: p.4 / article p.2411386-4 · Results and Discussion · Figures S7-S8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
O 1s C=O binding energy	approximately 532 eV	—	—	Text Approximate	p.4 / article p.2411386-4 · Results and Discussion · Figure S7a
O 1s C-O binding energy	approximately 533 eV	—	—	Text Approximate	p.4 / article p.2411386-4 · Results and Discussion · Figure S7a
O 1s V=O binding energy	approximately 531 eV	—	—	Text Approximate	p.4 / article p.2411386-4 · Results and Discussion · Figure S7a
Vanadium valence by V 2p XPS	approximately 4+	—	—	Text Approximate	p.4 / article p.2411386-4 · Results and Discussion · Figure S7b