Electrochemistry Application — Mixed Anionic and Cationic Redox Chemistry in a Tetrathiomolybdate Amorphous Coordination Framework

5 measurement groups · 28 results

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

galvanostatic cycling with varied Super P content

Galvanostatic cycling

<Na2MoS4> Li half-cell electrode with 0 wt % Super P · Electrode

Li half-cells at C/5 in 1.4-3.0 V vs Li+/Li with 0, 10, 20, and 30 wt % Super P.

Atmosphere: Ar-filled glovebox cell assembly
Geometry: pressed electrode powder on coin-cell case
Context: pristine carbon-free electrode and carbon-composite comparison
Measurement source: 7 (16585) · Results and Discussion · Figure 6A,B

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
30 wt % Super P electrode capacity	up to 460 mAh g-1	460 mAh g-1	—	Text Rounded Reported	7 (16585) · Results and Discussion · Figure 6A,B
30 wt % Super P capacity retention after 10 cycles	85%	—	—	Text Rounded Reported	7 (16585) · Results and Discussion · Figure 6B
0 wt % carbon electrode charge capacity	approximately 280 mAh g-1	280 mAh g-1	—	Text Approximate	6 (16584) · Results and Discussion · Figure 6A,B
0 wt % Super P capacity retention after 10 cycles	74%	—	—	Text Rounded Reported	7 (16585) · Results and Discussion · Figure 6B
conductive-agent percolation threshold	10 wt % Super P	—	—	Text Rounded Reported	7 (16585) · Results and Discussion · Figure 6A,B

galvanostatic charge/discharge

Galvanostatic cycling

<Na2MoS4>/Super P Li half-cell electrodes · Electrode

Li and Na half-cells at C/10; voltage windows 1.4-3.0 V vs Li+/Li and 1.1-2.7 V vs Na+/Na.

Atmosphere: Ar-filled glovebox cell assembly
Geometry: half-cell composite cathode
Context: composite electrode, conductivity attributed to pristine framework
Measurement source: 4 (16582) · Figure 2 caption · Figure 2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
first discharge capacity in Li half-cell	about 330 mAh g-1	330 mAh g-1	—	Text Approximate	3 (16581) · Results and Discussion · Figure 2A
Li half-cell capacity after 50 cycles	more than 400 mAh g-1 after 50 cycles	400 mAh g-1	lower bound	Text Approximate	3 (16581) · Results and Discussion · Figure 2C
initial open-circuit potential range	1.8-2.2 V vs Li+/Li or Na+/Na	—	range	Text Range	3 (16581) · Results and Discussion · Figure 2A,B
theoretical capacity for five-electron exchange	495 mAh g-1	495 mAh g-1	—	Text Exact Reported	2 (16580) · Introduction

galvanostatic charge/discharge with ex situ XPS states

X-ray photoelectron spectroscopy Galvanostatic cycling

<Na2MoS4>/Super P Li half-cell electrodes · Electrode

Li half-cells operated in selected windows to emphasise S anionic redox or Mo cationic redox.

Atmosphere: Ar-filled glovebox cell assembly
Geometry: Li half-cell composite cathode
Context: composite electrode used for framework redox assignment
Measurement source: 4 (16582) · Results and Discussion · Figure 3A,B

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
stable reversible capacity in 2-3 V Li window	around 110 mAh g-1	110 mAh g-1	—	Text Approximate	4 (16582) · Results and Discussion · Figure 3A
capacity in 1.4-2.25 V Li cathodic scan	more than 300 mAh g-1	300 mAh g-1	lower bound	Text Approximate	4 (16582) · Results and Discussion · Figure 3B
second Na extraction potential	3.6 V vs Li+/Li; high-voltage extraction caused degradation	—	—	Text Rounded Reported	4 (16582) · Results and Discussion · Figure S7

galvanostatic charge/discharge

Galvanostatic cycling

<Na2MoS4>/Super P Na half-cell electrode · Electrode

Na half-cells at C/10 in the 1.1-2.7 V window vs Na+/Na; 1 M NaPF6 in EC/DEC electrolyte.

Atmosphere: Ar-filled glovebox cell assembly
Geometry: Na half-cell composite cathode
Context: composite electrode, conductivity attributed to pristine framework
Measurement source: 4 (16582) · Figure 2 caption · Figure 2B,C

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
average Na-cell potential	approximately 1.7 V vs Na+/Na	—	approximately	Text Approximate	7 (16585) · Conclusion
first discharge capacity in Na half-cell	about 290 mAh g-1	290 mAh g-1	—	Text Approximate	3 (16581) · Results and Discussion · Figure 2B
Li and Na cell capacity retention after 200 cycles	more than 270 mAh g-1 with 99.9% average coulombic efficiency after 200 cycles	270 mAh g-1	lower bound	Text Approximate	2 (16580) · Introduction

variable-rate and long-term galvanostatic cycling

Galvanostatic cycling

<Na2MoS4>/Super P Li half-cell electrodes · Electrode

30 wt % carbon-containing <Na2MoS4> Li half-cell electrodes; variable C/10 to 5C rates and extended cycling at 1C.

Atmosphere: Ar-filled glovebox cell assembly
Geometry: Li half-cell composite cathode
Context: composite electrode using conductive framework active material
Measurement source: 7 (16585) · Results and Discussion · Figure 6C,D

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
average Li-cell potential	approximately 2.0 V vs Li+/Li	—	approximately	Text Approximate	7 (16585) · Conclusion
maximum electrons stored per formula unitMarked as a best value within this paper	as many as 5 electrons per formula unit	—	—	Text Rounded Reported	7 (16585) · Conclusion
capacity retained after 200 cycles	275 mAh g-1 over 200 cycles	275 mAh g-1	—	Text Rounded Reported	7 (16585) · Results and Discussion · Figure 6D
average coulombic efficiency during long cyclingMarked as a best value within this paper	99.9%	—	—	Text Exact Reported	7 (16585) · Results and Discussion · Figure 6D
long-term cycling initial capacity	450 mAh g-1	450 mAh g-1	—	Text Rounded Reported	7 (16585) · Results and Discussion · Figure 6D
rate capability capacity at 1C	383 mAh g-1 at 1C	383 mAh g-1	—	Text Exact Reported	7 (16585) · Results and Discussion · Figure 6C
rate capability capacity at 2C	325 mAh g-1 at 2C	325 mAh g-1	—	Text Exact Reported	7 (16585) · Results and Discussion · Figure 6C
rate capability capacity at 5C	152 mAh g-1 at 5C	152 mAh g-1	—	Text Exact Reported	7 (16585) · Results and Discussion · Figure 6C
rate capability capacity at C/10Marked as a best value within this paper	486 mAh g-1 at C/10	486 mAh g-1	—	Text Exact Reported	7 (16585) · Results and Discussion · Figure 6C
rate capability capacity at C/2	414 mAh g-1 at C/2	414 mAh g-1	—	Text Exact Reported	7 (16585) · Results and Discussion · Figure 6C
rate capability capacity at C/5	445 mAh g-1 at C/5	445 mAh g-1	—	Text Exact Reported	7 (16585) · Results and Discussion · Figure 6C
recovered C/10 capacity after variable-rate test	435 mAh g-1	435 mAh g-1	—	Text Exact Reported	7 (16585) · Results and Discussion · Figure 6C
sustained reversible capacityMarked as a best value within this paper	close to about 500 mAh g-1	500 mAh g-1	about	Text Approximate	7 (16585) · Conclusion