Synthesis · From Low-to High-Crystallinity Bimetal-Organic Framework Nanosheet with Highly Exposed Boundaries: An Efficient and Stable Electrocatalyst for Oxygen Evolution Reaction

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: Solvothermal

3 · Material Synthesis

Metal precursors0.375 mmol CoCl2.6H2O and 0.375 mmol FeCl2.4H2O; same raw materials ratio as two-step route

Linker precursors0.75 mmol benzenedicarboxylic acid (BDC)

Solvents32 mL DMF, 2 mL ethanol, 2 mL deionized water

Additives0.8 mL triethylamine (TEA)

Atmospherenot reported

Temperature140

Time48

Work-upNot separately stated; inferred same collection/wash/freeze-dry workup as main CoFe-MOF route.

ActivationNo separate activation reported.

Show 5 structured reagent records

Role	Reagent	Amount / concentration	Source
Solvent	DMF/ethanol/deionized water	32 mL / 2 mL / 2 mL	3 · Material Synthesis
Linker	BDC	0.75 mmol	3 · Material Synthesis
Metal Source	CoCl2.6H2O	0.375 mmol	3 · Material Synthesis
Metal Source	FeCl2.4H2O	0.375 mmol	3 · Material Synthesis
Base	TEA	0.8 mL	3 · Material Synthesis

Partial recipeSource: Main

Route 2: Other

3 · Material Synthesis

Metal precursors0.375 mmol CoCl2.6H2O and 0.375 mmol FeCl2.4H2O; same raw materials ratio as two-step route

Linker precursors0.75 mmol benzenedicarboxylic acid (BDC)

Solvents32 mL DMF, 2 mL ethanol, 2 mL deionized water

Additives0.8 mL triethylamine (TEA)

Atmospherenot reported

Temperaturenot reported for ultrasonic bath

Time8

Work-upNot separately stated; inferred same collection/wash/freeze-dry workup as main CoFe-MOF route.

ActivationNo separate activation reported.

Show 5 structured reagent records

Role	Reagent	Amount / concentration	Source
Solvent	DMF/ethanol/deionized water	32 mL / 2 mL / 2 mL	3 · Material Synthesis
Linker	BDC	0.75 mmol	3 · Material Synthesis
Metal Source	CoCl2.6H2O	0.375 mmol	3 · Material Synthesis
Metal Source	FeCl2.4H2O	0.375 mmol	3 · Material Synthesis
Base	TEA	0.8 mL	3 · Material Synthesis

Partial recipeSource: Main

Route 3: Drop Cast

3 · Electrochemical Characterizations

Solvents0.2 mL ethanol and 0.8 mL deionized water

Additives50 uL 5% Nafion

Atmosphereambient drying, not otherwise reported

Temperatureroom temperature

Timesonication >0.5 h; drying 0.25 h

Substrate orientationprepolished glassy carbon electrode, 3 mm diameter

Work-up5 uL ink cast onto GCE and dried for 15 min.

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	as-obtained MOF powders	5 mg	3 · Electrochemical Characterizations
Solvent	ethanol	0.2 mL	3 · Electrochemical Characterizations
Solvent	deionized water	0.8 mL	3 · Electrochemical Characterizations
Additive	Nafion	50 uL · 5%	3 · Electrochemical Characterizations

Partial recipeSource: Main

Route 4: Solvothermal

3 · Material Synthesis

Metal precursors0.375 mmol CoCl2.6H2O and 0.375 mmol FeCl2.4H2O

Linker precursors0.75 mmol benzenedicarboxylic acid (BDC)

Solvents32 mL N,N-dimethylformamide (DMF), 2 mL ethanol, 2 mL deionized water

Additives0.8 mL triethylamine (TEA)

Atmospherenot reported

Temperature140

Time8 h ultrasonic reaction plus 48 h solvothermal treatment

Work-upCooled to room temperature, centrifuged, washed with ethanol and deionized water three times.

ActivationFreeze-dried for 24 h; no separate evacuation/thermal activation reported.

Scalability contextBatch process in a 100 mL PTFE tube/pressure bottle; authors describe it as facile and general but do not report scale-up.

Show 7 structured reagent records

Role	Reagent	Amount / concentration	Source
Solvent	N,N-dimethylformamide (DMF)	32 mL	3 · Material Synthesis
Solvent	ethanol	2 mL	3 · Material Synthesis
Solvent	deionized water	2 mL	3 · Material Synthesis
Linker	benzenedicarboxylic acid (BDC)	0.75 mmol	3 · Material Synthesis
Metal Source	CoCl2.6H2O	0.375 mmol	3 · Material Synthesis
Metal Source	FeCl2.4H2O	0.375 mmol	3 · Material Synthesis
Base	triethylamine (TEA)	0.8 mL	3 · Material Synthesis