Synthesis · Oxygen-Vacancy-Abundant Ferrites on N-Doped Carbon Nanosheets as High-Performance Li-Ion Battery Anodes

6 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

main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Metal precursorsCoCl2.6H2O (0.119 g), FeCl3.6H2O (0.270 g)

Solvents18 mL H2O/1,2-propylene glycol = 8:10 v/v

Additivesglucose (0.200 g); aqueous NaOH (0.2 g in 2 mL water)

Atmospheresealed Teflon-lined stainless-steel autoclave; atmosphere not otherwise specified

Temperature180 C; 80 C drying

Time5 min stirring; 12 h solvothermal; overnight drying

Oxidant / reductantglucose present; NaOH base

Work-upcooled naturally, centrifuged, washed at least three times with deionized water, dried at 80 C overnight

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	CoCl2.6H2O	0.119 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Metal Source	FeCl3.6H2O	0.270 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Additive	glucose	0.200 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Base	NaOH in aqueous solution	0.2 g in 2 mL	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Partial recipeSource: Main

Route 2: Solvothermal

main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Metal precursorsFeCl3.6H2O; other amounts follow same solvothermal method but exact Fe-only recipe not separately specified

Solventssame solvothermal method as ferrites; exact Fe-only solvent amounts not separately specified

Additivesglucose and NaOH likely as same method; exact Fe-only recipe not separately specified

Atmospheresealed autoclave for solvothermal step; calcination atmosphere not specified

Temperature500 C calcination

Time2 h calcination

Work-upsame solvothermal method; specific Fe-only workup not separately specified

Activationsubsequent calcination at 500 C for 2 h

Show 1 structured reagent record

Role	Reagent	Amount / concentration	Source
Metal Source	FeCl3.6H2O	not separately specified for Fe2O3 control	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Complete recipeSource: Main

Route 3: Other

main p.9, article p.10583 · Experimental Section - Synthesis of N-doped carbon nanosheets (NC)

Metal precursorszinc nitrate hexahydrate (2.1 g; Zn(NO3)2.6H2O)

Linker precursorshexamethylenetetramine (1 g; HMT)

Solventsabsolute ethanol, 30 mL for Zn salt and 50 mL for HMT

AtmosphereAr during calcination

Temperature80 C drying; 400 C for 20 min then 900 C for 2 h calcination

Time10 min stirring; 12 h drying; 0.333 h at 400 C; 2 h at 900 C

Work-upcentrifuged, washed several times with absolute ethanol, dried at 80 C for 12 h

Activationcalcination in tube furnace under Ar at 5 C min-1

Show 3 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	zinc nitrate hexahydrate; Zn(NO3)2.6H2O	2.1 g	main p.9, article p.10583 · Experimental Section - Synthesis of N-doped carbon nanosheets (NC)
Linker	hexamethylenetetramine; HMT	1 g	main p.9, article p.10583 · Experimental Section - Synthesis of N-doped carbon nanosheets (NC)
Solvent	absolute ethanol	30 mL + 50 mL	main p.9, article p.10583 · Experimental Section - Synthesis of N-doped carbon nanosheets (NC)

Complete recipeSource: Main

Route 4: Solvothermal

main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Metal precursorsNC nanosheets (15 mg), CoCl2.6H2O (0.119 g), FeCl3.6H2O (0.270 g)

Solvents18 mL H2O/1,2-propylene glycol = 8:10 v/v

Additivesglucose (0.200 g); aqueous NaOH (0.2 g in 2 mL water)

Atmospheresealed Teflon-lined stainless-steel autoclave; atmosphere not otherwise specified

Temperature180 C; 80 C drying

Time10 min ultrasonication; 5 min stirring; 12 h solvothermal; overnight drying

Oxidant / reductantglucose present; FeCl3 and CoCl2 metal salts; NaOH base

Work-upcooled naturally, centrifuged, washed at least three times with deionized water, dried at 80 C overnight

Scalability contextBatch uses 25 mL autoclave.

Show 6 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	NC nanosheets	15 mg	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Metal Source	CoCl2.6H2O	0.119 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Metal Source	FeCl3.6H2O	0.270 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Additive	glucose	0.200 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Base	NaOH in aqueous solution	0.2 g in 2 mL	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Solvent	H2O and 1,2-propylene glycol	18 mL; H2O/1,2-propylene glycol = 8:10 v/v	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Complete recipeSource: Main

Route 5: Solvothermal

main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Metal precursorsNC nanosheets (15 mg), NiCl2.6H2O (0.118 g), FeCl3.6H2O (0.270 g)

Solvents18 mL H2O/1,2-propylene glycol = 8:10 v/v

Additivesglucose (0.200 g); aqueous NaOH (0.2 g in 2 mL water)

Atmospheresealed Teflon-lined stainless-steel autoclave; atmosphere not otherwise specified

Temperature180 C; 80 C drying

Time10 min ultrasonication; 5 min stirring; 12 h solvothermal; overnight drying

Oxidant / reductantglucose present; FeCl3 and NiCl2 metal salts; NaOH base

Work-upcooled naturally, centrifuged, washed at least three times with deionized water, dried at 80 C overnight

Scalability contextBatch uses 25 mL autoclave.

Show 6 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	NC nanosheets	15 mg	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Metal Source	NiCl2.6H2O	0.118 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Metal Source	FeCl3.6H2O	0.270 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Additive	glucose	0.200 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Base	NaOH in aqueous solution	0.2 g in 2 mL	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Solvent	H2O and 1,2-propylene glycol	18 mL; H2O/1,2-propylene glycol = 8:10 v/v	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Partial recipeSource: Main

Route 6: Solvothermal

main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites

Metal precursorsNiCl2.6H2O (0.118 g), FeCl3.6H2O (0.270 g)

Solvents18 mL H2O/1,2-propylene glycol = 8:10 v/v

Additivesglucose (0.200 g); aqueous NaOH (0.2 g in 2 mL water)

Atmospheresealed Teflon-lined stainless-steel autoclave; atmosphere not otherwise specified

Temperature180 C; 80 C drying

Time5 min stirring; 12 h solvothermal; overnight drying

Oxidant / reductantglucose present; NaOH base

Work-upcooled naturally, centrifuged, washed at least three times with deionized water, dried at 80 C overnight

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	NiCl2.6H2O	0.118 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Metal Source	FeCl3.6H2O	0.270 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Additive	glucose	0.200 g	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites
Base	NaOH in aqueous solution	0.2 g in 2 mL	main p.9, article p.10583 · Experimental Section - Synthesis of NC@MFe2O4 composites