Electrochemistry Application — A Cu-based electronically conducting metal–organic framework with π–d conjugation for cathode and anode modification in aqueous zinc-ion batteries

8 measurement groups · 43 results

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

Galvanostatic cycling of Zn@DDA-Cu||DDA-Cu full cell

Galvanostatic cycling

Zn@DDA-Cu composite anode · Electrode

Zn@DDA-Cu anode, DDA-Cu cathode, 3.5 M Zn(CF3SO3)2 electrolyte, 1 A g-1.

Geometry: full cell
Context: DDA-Cu used as both cathode active material and anode coating
Measurement source: 13 · Results and discussion · Fig. 10f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Zn@DDA-Cu\|\|DDA-Cu capacity after 100 cycles	185.5 mAh g-1 after 100 cycles at 1 A g-1; conclusion reports 185.48 mAh g-1	—	—	Text Exact Reported	13-14 · Results and discussion; Conclusions · Fig. 10f
Zn@DDA-Cu\|\|DDA-Cu Coulombic efficiency	~100%	—	~	Text Approximate	13 · Results and discussion · Fig. 10f
Zn@DDA-Cu\|\|DDA-Cu initial discharge capacity	151.4 mAh g-1 at 1 A g-1	—	—	Text Exact Reported	13 · Results and discussion · Fig. 10f
Zn@DDA-Cu\|\|DDA-Cu activated capacityMarked as a best value within this paper	215.1 mAh g-1 after brief activation	—	—	Text Exact Reported	13 · Results and discussion · Fig. 10f

CV and galvanostatic charge-discharge in R2032 coin cells

Voltammetry Galvanostatic cycling

DDA-Cu cathode electrode · Electrode

DDA-Cu cathode, zinc foil anode, 3.5 M Zn(CF3SO3)2 electrolyte; CV at 2 mV s-1 over 0.2-1.5 V vs Zn2+/Zn; GCD at 0.2-1 A g-1.

Temperature: room temperature
Geometry: R2032 coin cell
Context: DDA-Cu cathode application sample with pristine MOF active material
Measurement source: 3-4 · 2.4; Results and discussion · Fig. 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DDA-Cu cathode CV redox peaks	1.259/0.881 V	—	—	Text Exact Reported	4 · Results and discussion · Fig. 3a
Capacity after 100 cycles at 0.2 A g-1	124.8 mAh g-1	—	—	Text Exact Reported	4 · Results and discussion · Fig. 3c
Capacity after 100 cycles at 0.5 A g-1	142.3 mAh g-1	—	—	Text Exact Reported	4 · Results and discussion · Fig. 3d
Capacity after 175 cycles at 1 A g-1	120 mAh g-1	—	—	Text Rounded Reported	4 · Results and discussion · Fig. 3e
Capacity after 100 cycles at 2 A g-1	63.0 mAh g-1	—	—	Text Exact Reported	4 · Results and discussion · Fig. S2
Capacity after 100 cycles at 3 A g-1	79.6 mAh g-1	—	—	Text Exact Reported	4 · Results and discussion · Fig. S2
Initial discharge capacity at 0.2 A g-1Marked as a best value within this paper	249.6 mAh g-1	—	—	Text Exact Reported	4 · Results and discussion · Fig. 3b
Rate capacities at 0.2-1 A g-1	0.2, 0.4, 0.6, 0.8, and 1 A g-1: 264.2, 172.5, 133.3, 102.5, and 71.7 mAh g-1; recovered to 239.2 mAh g-1 at 0.2 A g-1 (90.5%)	—	—	Text Exact Reported	4 · Results and discussion · Fig. 3f

CV, GCD cycling, EIS and rate testing of Zn@DDA-Cu||NVO full cells

Impedance spectroscopy Voltammetry Galvanostatic cycling

Zn@DDA-Cu composite anode · Electrode

NVO cathode, 2 M Zn(CF3SO3)2 electrolyte; compared with Zn||NVO; CV at 10 mV s-1 over 0.2-1.6 V; cycling at 3 A g-1.

Temperature: room temperature
Geometry: full cell
Context: composite anode with non-MOF NVO cathode
Measurement source: 11-13 · Results and discussion · Fig. 10a-e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Zn\|\|NVO CV redox pairs	1.267/0.625 V and 0.807/0.375 V	—	—	Text Exact Reported	11 · Results and discussion · Fig. 10a
Zn@DDA-Cu\|\|NVO CV redox pairsMarked as a best value within this paper	1.231/0.664 V and 0.788/0.409 V	—	—	Text Exact Reported	11 · Results and discussion · Fig. 10a
Zn\|\|NVO initial discharge capacity	239.6 mAh g-1	—	—	Text Exact Reported	12 · Results and discussion · Fig. 10b
Zn@DDA-Cu\|\|NVO initial discharge capacityMarked as a best value within this paper	289.4 mAh g-1	—	—	Text Exact Reported	12 · Results and discussion · Fig. 10b
Zn\|\|NVO retention after 3000 cycles	57.16% after 3000 cycles at 3 A g-1	—	—	Text Exact Reported	12 · Results and discussion · Fig. 10b
Zn@DDA-Cu\|\|NVO retention after 3000 cycles	53.2% after 3000 cycles at 3 A g-1	—	—	Text Exact Reported	12 · Results and discussion · Fig. 10b

CV kinetic analysis

Voltammetry

DDA-Cu cathode electrode · Electrode

Scan rates 1-4 mV s-1; b-value and capacitive/diffusion contribution analysis.

Geometry: coin cell cathode
Context: DDA-Cu cathode
Measurement source: 5,7 · Results and discussion · Fig. 4a; Fig. S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CV kinetic b-values	Peak 1 b = 0.74; Peak 2 b = 0.57	—	—	Text Exact Reported	5 · Results and discussion · Fig. S3b
Capacitive contribution at 1 mV s-1	50%	—	—	Text Rounded Reported	5,7 · Results and discussion · Fig. 4a
Capacitive contribution at 2 mV s-1	56% capacitive / 44% diffusion	—	—	Figure Axis Approximate	7 · Results and discussion · Fig. 4a
Capacitive contribution at 3 mV s-1	64% capacitive / 36% diffusion	—	—	Figure Axis Approximate	7 · Results and discussion · Fig. 4a
Capacitive contribution at 4 mV s-1Marked as a best value within this paper	76% capacitive / 24% diffusion	—	—	Figure Axis Approximate	7 · Results and discussion · Fig. 4a

Supplementary comparison table of cathode cycling performance

DDA-Cu cathode electrode · Electrode

Table S1 compares DDA-Cu with MnO2 and V2O5 cathodes; first-hand DDA-Cu row reports 0.2 A/g, 100 cycles and 124.8 mAh/g.

Geometry: ZIB cathode comparison table
Context: DDA-Cu cathode compared with literature cathodes
Measurement source: 4 · Supporting Information · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DDA-Cu Table S1 capacity after cycling	124.8 mAh/g after 100 cycles at 0.2 A/g	—	—	SI Table Exact Reported	4 · Supporting Information · Table S1

EIS, Tafel linear polarisation, and LSV in symmetric cells

Impedance spectroscopy Voltammetry Tafel and polarisation analysis

Zn@DDA-Cu composite anode · Electrode

Zn||Zn and Zn@DDA-Cu||Zn@DDA-Cu symmetric cells; EIS after standing 2 h; linear polarisation in 2 M Zn(CF3SO3)2; LSV for HER.

Temperature: room temperature
Geometry: CR2032 symmetric cells
Context: composite anode versus bare Zn control
Measurement source: 8,10 · Results and discussion · Fig. 7a-c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Bare Zn corrosion current density	6.76 x 10-4 A cm-2	—	—	Text Exact Reported	8 · Results and discussion · Fig. 7b
Zn@DDA-Cu corrosion current densityMarked as a best value within this paper	4.07 x 10-4 A cm-2	—	—	Text Exact Reported	8 · Results and discussion · Fig. 7b
Bare Zn LSV labelled water decomposition potential	-0.112 V	—	—	Figure Axis Approximate	10 · Results and discussion · Fig. 7c
Zn@DDA-Cu LSV labelled water decomposition potentialMarked as a best value within this paper	-0.127 V	—	—	Figure Axis Approximate	10 · Results and discussion · Fig. 7c
Bare Zn charge-transfer resistance	607.2 ohm	—	—	Text Exact Reported	8 · Results and discussion · Fig. 7a
Zn@DDA-Cu charge-transfer resistanceMarked as a best value within this paper	257.8 ohm	—	—	Text Exact Reported	8 · Results and discussion · Fig. 7a

Cross-sectional SEM and galvanostatic symmetric-cell cycling of film-thickness variants

Scanning electron microscopy Galvanostatic cycling

Zn@DDA-Cu-1 · Electrode

Zn@DDA-Cu-1 and Zn@DDA-Cu-2 at 0.5 mA cm-2/0.5 mAh cm-2 and 1 mA cm-2/1 mAh cm-2.

Geometry: symmetric cells
Context: composite anode thickness variants
Measurement source: 11-12 · Results and discussion · Fig. 9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Zn@DDA-Cu-1 cycling life at 0.5 mA cm-2/0.5 mAh cm-2	500 h	—	—	Text Rounded Reported	11 · Results and discussion · Fig. 9c
Zn@DDA-Cu-1 cycling life at 1 mA cm-2/1 mAh cm-2	524 h	—	—	Text Rounded Reported	11 · Results and discussion · Fig. 9e
Zn@DDA-Cu-2 cycling life at 0.5 mA cm-2/0.5 mAh cm-2	625 h	—	—	Text Rounded Reported	11 · Results and discussion · Fig. 9d
Zn@DDA-Cu-2 cycling life at 1 mA cm-2/1 mAh cm-2	552 h	—	—	Text Rounded Reported	11 · Results and discussion · Fig. 9f
Zn@DDA-Cu-1/-2 overpotential range	37 to 50 mV	—	range	Text Range	11 · Results and discussion · Fig. 9c-f
Zn@DDA-Cu-1 film thickness	89.32 nm	—	—	Text Exact Reported	11 · Results and discussion · Fig. 9a
Zn@DDA-Cu-2 film thickness	105 nm	—	—	Text Rounded Reported	11 · Results and discussion · Fig. 9b

Galvanostatic Zn plating/stripping in symmetric cells

Galvanostatic cycling

Zn@DDA-Cu composite anode · Electrode

Zn@DDA-Cu||Zn@DDA-Cu versus Zn||Zn at 0.5 mA cm-2/0.5 mAh cm-2, 1 mA cm-2/1 mAh cm-2, 5 mA cm-2/1 mAh cm-2, and rate testing 0.5-5 mA cm-2.

Temperature: room temperature
Geometry: CR2032 symmetric cells
Context: composite anode versus bare Zn control
Measurement source: 8-10 · Results and discussion · Fig. 7d-g

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Bare Zn symmetric-cell life at 1 mA cm-2/1 mAh cm-2	192 h	—	—	Text Rounded Reported	9 · Results and discussion · Fig. 7e
Bare Zn symmetric-cell life at 0.5 mA cm-2/0.5 mAh cm-2	~145 h	—	—	Text Approximate	9 · Results and discussion · Fig. 7d
Zn@DDA-Cu symmetric-cell rate cycling duration	>225 h during 0.5-5 mA cm-2 rate cycling	—	—	Text Approximate	9 · Results and discussion · Fig. 7g
Zn@DDA-Cu symmetric-cell life at 0.5 mA cm-2/0.5 mAh cm-2Marked as a best value within this paper	>3500 h; overpotential ~40-50 mV	—	—	Text Approximate	8-9 · Results and discussion · Fig. 7d
Zn@DDA-Cu symmetric-cell life at 1 mA cm-2/1 mAh cm-2	~1500 h	—	—	Text Approximate	9 · Results and discussion · Fig. 7e
Zn@DDA-Cu symmetric-cell life at 5 mA cm-2/1 mAh cm-2	760 h; overpotential 97-129 mV	—	—	Text Rounded Reported	9 · Results and discussion · Fig. 7f