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

4 measurement groups · 13 results

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

2DCIF methanolic dispersion · Nanosheet

Fresh 2DCIF dispersion in methanol; Malvern Zetasizer, 633 nm, 173 degree scattering, 25 C

Temperature: 298
Atmosphere: methanol dispersion
Geometry: quartz cuvette
Context: pristine 2DCIF colloidal nanosheets
Measurement source: 11 · III.3 Dynamic Light Scattering (DLS) and Zeta-Potential · Fig. S11; Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
fresh DLS hydrodynamic lateral length by intensity	572 ± 8 nm	—	± 8 nm	SI Table Exact Reported	11 · III.3 DLS · Table S2
fresh DLS hydrodynamic lateral length by number	497 ± 9 nm	—	± 9 nm	SI Table Exact Reported	11 · III.3 DLS · Table S2
fresh DLS polydispersity index	0.137	—	—	SI Table Exact Reported	11 · III.3 DLS · Table S2
fresh DLS hydrodynamic lateral length by volume	673 ± 8 nm	—	± 8 nm	SI Table Exact Reported	11 · III.3 DLS · Table S2

2DCIF methanolic dispersion · Nanosheet

2DCIFs dispersed in MeOH, H2O, or 0.1 M KOH up to 30 days at room temperature

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
acidic-medium stability	2DCIFs were not stable in acidic media (H2SO4)	—	—	Text Qualitative	16 · III.9 Chemical stability
DLS lateral length in 0.1 M KOH after 30 days	519 ± 9 nm	—	± 9 nm	SI Table Exact Reported	17 · III.9 Chemical stability · Table S5
DLS lateral length in MeOH after 30 days	505 ± 14 nm	—	± 14 nm	SI Table Exact Reported	17 · III.9 Chemical stability · Table S5
DLS lateral length in H2O after 30 days	467 ± 16 nm	—	± 16 nm	SI Table Exact Reported	17 · III.9 Chemical stability · Table S5

as-synthesised 2DCIF nanosheet powder · Nanosheet

30-600 C, 5 C min-1, dynamic air flow 100 mL min-1

Atmosphere: air
Geometry: powder
Context: pristine 2DCIF nanosheets
Measurement source: 13-14 · III.7 Thermogravimetric analysis (TGA) · Fig. S15

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
first TGA mass loss	about 28% at 280 C	—	about	Text Approximate	13 · III.7 Thermogravimetric analysis · Fig. S15
TGA residual mass	31.3 wt%	—	—	Text Exact Reported	13 · III.7 Thermogravimetric analysis · Fig. S15
second TGA mass loss	about 41% from 320 to 400 C	—	about	Text Approximate	13 · III.7 Thermogravimetric analysis · Fig. S15
thermal stability threshold	thermally stable up to 280 C	—	—	Text Rounded Reported	24593 · Results and discussion · Fig. S15

2DCIF methanolic dispersion · Nanosheet

2DCIF nanosheets dispersed in MilliQ water

Temperature: 298
Atmosphere: aqueous dispersion
Context: pristine 2DCIF colloidal nanosheets
Measurement source: 11 · III.3 Dynamic Light Scattering (DLS) and Zeta-Potential

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
zeta potential in water	ζ = 7.9 ± 0.4 mV	—	± 0.4 mV	Text Exact Reported	11 · III.3 DLS and Zeta-Potential