Synthesis · Linker Defects Triggering Boosted Oxygen Reduction Activity of Co/Zn-ZIF Nanosheet Arrays for Rechargeable Zn–Air batteries

4 structured synthesis routes

Completeness describes how fully the route could be reconstructed from the main article and supporting information.

Partial recipeSource: Main

Route 1: Other

7 · Assembling of Liquid Zn-Air Battery

Metal precursorsD-ZIF catalyst on Ni foam; cleaned Zn plate

Solventsaqueous KOH / zinc acetate electrolyte

Additivesgas diffusion and waterproof layer on air-facing side

Atmosphereambient conditions at room temperature; oxygen gas from air

Temperatureroom temperature

Substrate orientationair cathode area 1.0 x 1.0 cm2 catalyst on nickel foam

Oxidant / reductantair oxygen; zinc anode

Work-upassembled as liquid Zn-air battery

Scalability contextDevice assembly uses 1.0 x 1.0 cm2 air cathode and 0.3 mm Zn plate.

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	self-standing D-ZIF catalyst on nickel foam	1.0 x 1.0 cm2	7 · Assembling of Liquid Zn-Air Battery
Other	cleaned zinc plate	0.3 mm thickness	7 · Assembling of Liquid Zn-Air Battery
Electrolyte	KOH	6 M	7 · Assembling of Liquid Zn-Air Battery
Electrolyte	zinc acetate	0.02 M	7 · Assembling of Liquid Zn-Air Battery

Complete recipeSource: Both

Route 2: Other

6 · 4. Experimental Section - Material Synthesis

Metal precursorspreformed Co/Zn-ZIF-L nanosheet arrays

Linker precursorspreformed Co/Zn-ZIF-L containing imidazole molecules

Atmosphereair

Temperature200

Time2

Substrate orientationZIF nanosheet arrays on Ni foam

Activationthermal treatment in air at 200 C for 2 h to remove some imidazole molecules

Show 1 structured reagent record

Role	Reagent	Amount / concentration	Source
Other	Co/Zn-ZIF-L	Not specified	6 · 4. Experimental Section - Material Synthesis

Partial recipeSource: Main

Route 3: Other

7 · Assembling of Liquid Zn-Air Battery

Metal precursorsZIF catalyst on Ni foam; cleaned Zn plate

Solventsaqueous KOH / zinc acetate electrolyte

Additivesgas diffusion and waterproof layer on air-facing side

Atmosphereambient conditions at room temperature; oxygen gas from air

Temperatureroom temperature

Substrate orientationair cathode area 1.0 x 1.0 cm2 catalyst on nickel foam

Oxidant / reductantair oxygen; zinc anode

Work-upassembled as liquid Zn-air battery

Scalability contextControl device assembled by the same method as D-ZIF-ZAB.

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	self-standing ZIF catalyst on nickel foam	1.0 x 1.0 cm2	7 · Assembling of Liquid Zn-Air Battery
Other	cleaned zinc plate	0.3 mm thickness	7 · Assembling of Liquid Zn-Air Battery
Electrolyte	KOH	6 M	7 · Assembling of Liquid Zn-Air Battery
Electrolyte	zinc acetate	0.02 M	7 · Assembling of Liquid Zn-Air Battery

Complete recipeSource: Both

Route 4: Hydrothermal

6 · 4. Experimental Section - Material Synthesis

Metal precursorsCo(NO3)2.6H2O (45 x 10^-3 M) and Zn(NO3)2.6H2O (15 x 10^-3 M)

Linker precursors2-methylimidazole (C4H6N2, 0.8 M)

Solvents80 mL deionised water

Atmospherenot specified; aqueous reaction at ambient atmosphere inferred

Temperature60

Time4

Substrate orientationclean Ni foam piece, 3 x 2 cm2, immersed in the precursor solution

Work-upnaturally cooled to room temperature; washed with deionised water; dried overnight at 60 C

Scalability contextSelf-supporting array grown directly on a 3 x 2 cm2 Ni foam substrate.

Show 5 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	Co(NO3)2.6H2O	45 x 10^-3 M	6 · 4. Experimental Section - Material Synthesis
Metal Source	Zn(NO3)2.6H2O	15 x 10^-3 M	6 · 4. Experimental Section - Material Synthesis
Linker	2-methylimidazole (C4H6N2)	0.8 M	6 · 4. Experimental Section - Material Synthesis
Solvent	deionized water	80 mL	6 · 4. Experimental Section - Material Synthesis
Other	Ni foam	3 x 2 cm2	6 · 4. Experimental Section - Material Synthesis