Synthesis · Engineering the structures of ZnCo-MOFs via a ligand effect for enhanced supercapacitor performance

7 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

13 · 3.1.2 Two-electrode measurement

Solvents6 M KOH electrolyte

Additivesactivated carbon (PAC) from peanut shell

Atmospherenot specified

Substrate orientationasymmetric two-electrode supercapacitor cell

Work-upMass balancing by equation (8); coated masses 3.2 mg cm^-2 and 0.8 mg cm^-2 for negative and positive electrodes, respectively; total device electrode mass 4.0 mg cm^-2.

Activationnot specified

Scalability contextDevice assembly details, separator and AC preparation are not reported in the provided main text.

Show 3 structured reagent records

Role	Reagent	Amount / concentration	Source
Electrolyte	KOH	6 M	13 · 3.1.2 Two-electrode measurement
Other	activated carbon (PAC) obtained from peanut shell	3.2 or 0.8 mg cm^-2 depending on electrode polarity; article wording ambiguous	13 · 3.1.2 Two-electrode measurement
Other	ZnCo-MOF-HMIM electrode	3.2 or 0.8 mg cm^-2 depending on electrode polarity; article wording ambiguous	13 · 3.1.2 Two-electrode measurement

Partial recipeSource: Main

Route 2: Drop Cast

3 · 2.4 Electrode preparation

SolventsN-methylpyrrolidone (NMP) slurry solvent

Additivesacetylene black conductive additive; PVDF binder

Atmosphereair/oven atmosphere not specified

Temperature60

Time12

Substrate orientationpre-cleaned Ni foam current collector, 1 cm x 1 cm

Work-upHomogeneously grind active material, acetylene black and PVDF at 8:1:1, add NMP, coat Ni foam, oven dry at 60 C for 12 h.

Activationoven drying at 60 C for 12 h

Scalability contextElectrode area 1 cm x 1 cm; mass loading reported, but slurry concentration and NMP volume are not given.

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	ZnCo-MOF-ABDC	3.2 mg	3 · 2.4 Electrode preparation
Additive	acetylene black	8:1:1 active:acetylene black:PVDF mass ratio	3 · 2.4 Electrode preparation
Additive	PVDF	8:1:1 active:acetylene black:PVDF mass ratio	3 · 2.4 Electrode preparation
Solvent	N-methylpyrrolidone (NMP)	suitable amount	3 · 2.4 Electrode preparation

Partial recipeSource: Main

Route 3: Drop Cast

3 · 2.4 Electrode preparation

SolventsN-methylpyrrolidone (NMP) slurry solvent

Additivesacetylene black conductive additive; PVDF binder

Atmosphereair/oven atmosphere not specified

Temperature60

Time12

Substrate orientationpre-cleaned Ni foam current collector, 1 cm x 1 cm

Work-upHomogeneously grind active material, acetylene black and PVDF at 8:1:1, add NMP, coat Ni foam, oven dry at 60 C for 12 h.

Activationoven drying at 60 C for 12 h

Scalability contextElectrode area 1 cm x 1 cm; mass loading reported, but slurry concentration and NMP volume are not given.

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	ZnCo-MOF-BDC	2.5 mg	3 · 2.4 Electrode preparation
Additive	acetylene black	8:1:1 active:acetylene black:PVDF mass ratio	3 · 2.4 Electrode preparation
Additive	PVDF	8:1:1 active:acetylene black:PVDF mass ratio	3 · 2.4 Electrode preparation
Solvent	N-methylpyrrolidone (NMP)	suitable amount	3 · 2.4 Electrode preparation

Partial recipeSource: Main

Route 4: Drop Cast

3 · 2.4 Electrode preparation

SolventsN-methylpyrrolidone (NMP) slurry solvent

Additivesacetylene black conductive additive; PVDF binder

Atmosphereair/oven atmosphere not specified

Temperature60

Time12

Substrate orientationpre-cleaned Ni foam current collector, 1 cm x 1 cm

Work-upHomogeneously grind active material, acetylene black and PVDF at 8:1:1, add NMP, coat Ni foam, oven dry at 60 C for 12 h.

Activationoven drying at 60 C for 12 h

Scalability contextElectrode area 1 cm x 1 cm; mass loading reported, but slurry concentration and NMP volume are not given.

Show 4 structured reagent records

Role	Reagent	Amount / concentration	Source
Other	ZnCo-MOF-HMIM	3.0 mg	3 · 2.4 Electrode preparation
Additive	acetylene black	8:1:1 active:acetylene black:PVDF mass ratio	3 · 2.4 Electrode preparation
Additive	PVDF	8:1:1 active:acetylene black:PVDF mass ratio	3 · 2.4 Electrode preparation
Solvent	N-methylpyrrolidone (NMP)	suitable amount	3 · 2.4 Electrode preparation

Partial recipeSource: Both

Route 5: Solvothermal

2 · 2.2 Preparation of ZnCo-MOFs with three different ligands

Metal precursorsZn(NO3)2.6H2O and Co(NO3)2.6H2O, 1.2 mmol reported for Zn and Co salts (wording suggests each salt but is ambiguous)

Linker precursors2-aminoterephthalic acid (NH2-H2BDC), substituted for terephthalic acid

SolventsDMF and ethanol; article also says methanol and DMF solvent system (3:1 v/v), creating a solvent-name inconsistency

Additivesnone reported

Atmospherenot specified

Temperature120

Time12

Work-upCentrifuge precipitate, wash repeatedly with DMF and ethanol, dry overnight at 70 C in a vacuum oven after crystallisation and cooling.

Activationvacuum drying overnight at 70 C

Scalability contextOne-pot/co-precipitation route in a 50 mL Teflon-lined stainless-steel autoclave; no yield or scale-up data reported.

Show 5 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	Zn(NO3)2.6H2O	1.2 mmol	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Metal Source	Co(NO3)2.6H2O	1.2 mmol	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Linker	2-aminoterephthalic acid (NH2-H2BDC), substituted for terephthalic acid	not specified in main text	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Solvent	N,N-dimethylformamide (DMF)	not specified	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Solvent	ethanol; methanol also stated in solvent-system sentence	not specified · 3:1 v/v solvent system reported for alcohol/DMF	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands

Partial recipeSource: Both

Route 6: Solvothermal

2 · 2.2 Preparation of ZnCo-MOFs with three different ligands

Metal precursorsZn(NO3)2.6H2O and Co(NO3)2.6H2O, 1.2 mmol reported for Zn and Co salts (wording suggests each salt but is ambiguous)

Linker precursorsterephthalic acid (H2BDC)

SolventsDMF and ethanol; article also says methanol and DMF solvent system (3:1 v/v), creating a solvent-name inconsistency

Additivesnone reported

Atmospherenot specified

Temperature120

Time12

Work-upCentrifuge precipitate, wash repeatedly with DMF and ethanol, dry overnight at 70 C in a vacuum oven after crystallisation and cooling.

Activationvacuum drying overnight at 70 C

Scalability contextOne-pot/co-precipitation route in a 50 mL Teflon-lined stainless-steel autoclave; no yield or scale-up data reported.

Show 5 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	Zn(NO3)2.6H2O	1.2 mmol	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Metal Source	Co(NO3)2.6H2O	1.2 mmol	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Linker	terephthalic acid (H2BDC)	not specified in main text	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Solvent	N,N-dimethylformamide (DMF)	not specified	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Solvent	ethanol; methanol also stated in solvent-system sentence	not specified · 3:1 v/v solvent system reported for alcohol/DMF	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands

Partial recipeSource: Both

Route 7: Solvothermal

2 · 2.2 Preparation of ZnCo-MOFs with three different ligands

Metal precursorsZn(NO3)2.6H2O and Co(NO3)2.6H2O, 1.2 mmol reported for Zn and Co salts (wording suggests each salt but is ambiguous)

Linker precursors2-methylimidazole (2-HMIM), substituted for terephthalic acid

SolventsDMF and ethanol; article also says methanol and DMF solvent system (3:1 v/v), creating a solvent-name inconsistency

Additivesnone reported

Atmospherenot specified

Temperature120

Time12

Work-upCentrifuge precipitate, wash repeatedly with DMF and ethanol, dry overnight at 70 C in a vacuum oven after crystallisation and cooling.

Activationvacuum drying overnight at 70 C

Scalability contextOne-pot/co-precipitation route in a 50 mL Teflon-lined stainless-steel autoclave; no yield or scale-up data reported.

Show 5 structured reagent records

Role	Reagent	Amount / concentration	Source
Metal Source	Zn(NO3)2.6H2O	1.2 mmol	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Metal Source	Co(NO3)2.6H2O	1.2 mmol	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Linker	2-methylimidazole (2-HMIM), substituted for terephthalic acid	not specified in main text	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Solvent	N,N-dimethylformamide (DMF)	not specified	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands
Solvent	ethanol; methanol also stated in solvent-system sentence	not specified · 3:1 v/v solvent system reported for alcohol/DMF	2 · 2.2 Preparation of ZnCo-MOFs with three different ligands