Electrochemistry Application — A 2D copper-imidazolate framework without thermal treatment as an efficient ORR electrocatalyst for Zn-air batteries

5 measurement groups · 23 results

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

2DCIF carbon-disk air electrode for all-solid-state Zn-air battery · Electrode

PVA-KOH gel polymer electrolyte; 0.7 g Zn powder negative electrode; 2DCIF-modified carbon disk positive air electrode

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
all-solid-state Zn-air capacity normalised to catalyst massMarked as a best value within this paper	389.1 A h g-1	—	—	Text Exact Reported	24596 · Zn-air batteries · Fig. S34
all-solid-state Zn-air capacity normalised to whole air electrode	3.61 A h g-1	—	—	Text Exact Reported	24596 · Zn-air batteries · Fig. S34
all-solid-state Zn-air maximum power densityMarked as a best value within this paper	91.7 mW cm-2	—	—	Text Exact Reported	24596 · Zn-air batteries · Fig. S34

2DCIF carbon-paper air electrode for flooded Zn-air battery · Electrode

Zn plate anode, carbon-paper cathode modified with 0.375 mg 2DCIF, 6 M KOH electrolyte, 1 +/- 0.02 mL cell volume

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
flooded Zn-air specific discharge capacity normalised to catalyst massMarked as a best value within this paper	296.2 A h g-1	—	—	Text Exact Reported	24595 · Zn-air batteries · Fig. 4E
flooded Zn-air specific discharge capacity normalised to whole air electrode	3.17 A h g-1	—	—	Text Exact Reported	24595 · Zn-air batteries · Fig. 4E
current density at flooded Zn-air maximum power	53.7 mA cm-2	—	—	Text Exact Reported	24595 · Zn-air batteries · Fig. 4B
flooded Zn-air maximum areal power densityMarked as a best value within this paper	34.2 mW cm-2 at 53.7 mA cm-2	—	—	Text Exact Reported	24595 · Zn-air batteries · Fig. 4B
flooded Zn-air capacity after mechanical recharge normalised to catalyst massMarked as a best value within this paper	548.0 A h g-1	—	—	Text Exact Reported	24595 · Zn-air batteries · Fig. 4F
flooded Zn-air capacity after mechanical recharge normalised to whole air electrode	5.85 A h g-1	—	—	Text Exact Reported	24595 · Zn-air batteries · Fig. 4F
flooded Zn-air specific power density normalised to catalyst massMarked as a best value within this paper	91.2 kW cm-2 kg-1	—	—	Text Exact Reported	24595 · Zn-air batteries · Fig. 4B
flooded Zn-air specific power density normalised to whole air electrode	0.98 kW cm-2 kg-1	—	—	Text Exact Reported	24595 · Zn-air batteries · Fig. 4B

GCE/2DCIF electrocatalyst electrode · Electrode

GCE/2DCIF in O2- or N2-saturated 0.1 M KOH; scan rate 10 mV s-1; rotation rates 250-2500 rpm

Atmosphere: O2 or N2 saturated aqueous 0.1 M KOH
Geometry: 5 mm glassy carbon disk working electrode; Ag/AgCl reference normalised to RHE; graphite counter electrode
Context: pristine non-calcined 2DCIF on GCE
Measurement source: 24594 · Results and discussion; ORR electrocatalysis · Fig. 3; Table S11

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu(I) to Cu(0) reduction potential in N2 electrolyte	~0.33 V vs RHE	—	~	Text Approximate	24594 · Results and discussion; ORR · Fig. 3A
Cu(II) to Cu(I) reduction potential in N2 electrolyte	~0.70 V vs RHE	—	~	Text Approximate	24594 · Results and discussion; ORR · Fig. 3A
ORR half-wave potential	680 mV vs RHE	0.68 V vs RHE	—	SI Table Exact Reported	27 · V.3 Comparison of different Cu-based MOFs · Table S11
ORR kinetic current density Jk	Jk = 88.1 mA cm-2	—	—	Text Exact Reported	24594 · Results and discussion; ORR · Fig. 3C inset
maximum/limiting ORR current densityMarked as a best value within this paper	-6.4 mA cm-2 at 2500 rpm	—	—	SI Table Exact Reported	27 · V.3 Comparison of different Cu-based MOFs · Table S11
ORR rate constant k	k = 0.761 cm s-1	—	—	Text Exact Reported	24594 · Results and discussion; ORR · Fig. 3C inset
electron transfer number	3.93	—	—	Text Exact Reported	24594 · Results and discussion; ORR · Fig. 3C inset
ORR onset potential	861 mV vs RHE	0.861 V vs RHE	—	SI Table Exact Reported	27 · V.3 Comparison of different Cu-based MOFs · Table S11

GCE/2DCIF electrocatalyst electrode · Electrode

1000 continuous potential cycles in O2-saturated 0.1 M KOH; static and 2500 rpm rotating conditions

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
accelerated ageing cycles	1000 continuous potential cycles	—	—	Text Exact Reported	24 · V.1 Electrochemical durability tests · Fig. S26

2DCIF-modified ITO electrode before/after ORR · Electrode

2DCIF-modified ITO examined before and after ORR electrochemical analysis

Atmosphere: alkaline ORR conditions
Geometry: 2DCIF on ITO electrode
Context: 2DCIF electrode after ORR
Measurement source: 24-26 · V.2 Characterization of 2DCIFs after the electrocatalytic process · Fig. S27-S31

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
post-ORR new O 1s peak	new peak at 528 eV attributed to adsorbed O2 / metallic oxygen	—	—	Text Exact Reported	24595 · Post-ORR characterization · Fig. S30B
post-ORR preserved inter-plane spacing	c = 1.425 nm	—	—	Text Exact Reported	24 · V.2 Characterization after electrocatalytic process · Fig. S28
post-ORR retained XRD 002 peak position	~13 degrees 2theta	—	~	Text Approximate	24 · V.2 Characterization after electrocatalytic process · Fig. S28