Method for preparing Mn3o4 hollow micronano cubic block by employing metal-organic framework (MOF) template
A hollow micro-cube technology, which is applied in the manufacture of hybrid/electric double layer capacitors and hybrid capacitor electrodes, can solve the problems of unfavorable large-scale application, complex preparation process and high cost of hollow structure metal oxides, and achieve cheap reaction raw materials , easy to remove, template synthesis simple effect
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[0015] Synthetic MOF templates
[0016] Accurately weigh 0.1979 g of manganese chloride and 0.5 g of PVP-K30 and dissolve in 25 mL of ethanol and stir to obtain a metal salt solution, dissolve 0.2301 g of anhydrous formic acid and 0.5171 g of methylamine in alcohol solution and stir in 25 mL of ethanol to obtain a ligand solution. The metal salt solution was dropped into the ligand solution and stirred for 2 h. The final product was collected after centrifugation, washing and drying.
[0017] Synthetic Mn 3 o 4 Hollow micro-nano cubes
[0018] 0.2212 g of MOF template was accurately weighed and dispersed in 50 mL of ethanol with stirring, and then 0.004 g of NaOH was dissolved in 20 mL of ethanol. Drop the alkali solution into the MOF template dispersion liquid, under hydrothermal condition 120 o C reacted for 6 h. After the reactor was cooled to room temperature, the final product was collected after centrifugation, washing and drying.
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