Synthesis · Efficient oxygen evolution using conductive cobalt-based metal-organic framework

4 structured synthesis routes

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

Partial recipeSource: SI

Route 1: Solvothermal

SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)

Metal precursorsCo(NO3)2.6H2O, amount inferred same as Co-BTB route but not restated

Linker precursorsnone; H3BTB omitted

SolventsDMF/acetic acid solution, inferred from above method

Additivesacetic acid, inferred from above method

Atmospherenot specified; sealed Teflon-lined steel autoclave inferred

Temperature170

Time24

Work-upnot separately described; inferred same filtering/washing/drying workflow

Activationnot separately described

Show 3 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	Co(NO3)2.6H2O	not separately reported; above method uses 75 mg, 0.26 mmole	SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)
Solvent	N,N-dimethylformamide (DMF)	not separately reported; above method uses 15 mL	SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)
Acid	acetic acid	not separately reported; above method uses 0.5 mL	SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)

Partial recipeSource: SI

Route 2: Drop Cast

SI text · 2.3 The electrode preparation

Solvents750 uL isopropanol and 200 uL deionised water, inferred shared catalyst-ink recipe

Additives50 uL Nafion (5%)

Atmosphereair drying at ambient temperature

Temperatureambient

Substrate orientationconductive carbon paper, 1 cm2

Work-upsonicated 20 min; 100 uL suspension drop-cast on carbon paper

Activationair drying at ambient temperature

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	prepared Co3O4 control catalyst	10 mg	SI text · 2.3 The electrode preparation
Solvent	isopropanol	750 uL	SI text · 2.3 The electrode preparation
Solvent	deionized water	200 uL	SI text · 2.3 The electrode preparation
Additive	Nafion	50 uL · 5%	SI text · 2.3 The electrode preparation

Complete recipeSource: SI

Route 3: Drop Cast

SI text · 2.3 The electrode preparation

Solvents750 uL isopropanol and 200 uL deionised water

Additives50 uL Nafion (5%)

Atmosphereair drying at ambient temperature

Temperatureambient

Substrate orientationconductive carbon paper, 1 cm2

Work-upsonicated 20 min; 100 uL suspension drop-cast on carbon paper

Activationair drying at ambient temperature

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	prepared Co-BTB catalyst	10 mg	SI text · 2.3 The electrode preparation
Solvent	isopropanol	750 uL	SI text · 2.3 The electrode preparation
Solvent	deionized water	200 uL	SI text · 2.3 The electrode preparation
Additive	Nafion	50 uL · 5%	SI text · 2.3 The electrode preparation

Complete recipeSource: Both

Route 4: Solvothermal

SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)

Metal precursorsCo(NO3)2.6H2O (75 mg, 0.26 mmol)

Linker precursorsH3BTB (50 mg, 0.11 mmol)

Solvents15 mL N,N-dimethylformamide (DMF)

Additives0.5 mL acetic acid

Atmospherenot specified; sealed Teflon-lined steel autoclave

Temperature170

Time24

Work-upfiltered and washed with DMF and dichloromethane

Activationdried under vacuum

Scalability contextSmall autoclave batch; no yield or scale-up information reported.

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	Co(NO3)2.6H2O	75 mg, 0.26 mmole	SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)
Linker	H3BTB	50 mg, 0.11 mmole	SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)
Solvent	N,N-dimethylformamide (DMF)	15 mL	SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)
Acid	acetic acid	0.5 mL	SI text · Synthesis of Cobalt Metal-Organic Framework (Co-BTB)