A kind of magnesia/iron composite material modified diaphragm and preparation method thereof
A composite material and magnesia technology, applied in the field of modified diaphragm of magnesia/iron composite material and its preparation, to achieve the effects of improving electrical conductivity, reducing influence and simple preparation
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Embodiment 1
[0033] Weigh 0.3-0.6g magnesium acetate tetrahydrate (Mg(CH 3 COO) 2 4H 2 O) and 1-2g of polyvinylpyrrolidone (PVP, K30), measure 40 mL of ethylene glycol ((CH 2 Oh) 2 ), poured into single-necked flasks successively. The above mixture was heated at 180 °C for 2 h under stirring in an oil bath, cooled to room temperature, and the product was centrifuged and washed three times with ethanol, and then dried overnight in an oven at 60 °C to obtain a magnesium oxide precursor. The obtained magnesium oxide precursor was put into a muffle furnace for calcination at 500 °C for 5 h to obtain white magnesium oxide powder.
[0034] Weigh a certain amount of 0.3-0.5g magnesium oxide and 0.1-0.2g ferric chloride hexahydrate (FeCl 3 ·6H 2 O) Dissolve and disperse in 40 mL of ethanol, and disperse evenly by ultrasonication for 15 min. The mixed solution was dried in an oven at 60 °C to obtain a light yellow powder of magnesium oxide adsorbed on ferric chloride. Put the above powder i...
Embodiment 2
[0038] Weigh 5-6g magnesium acetate tetrahydrate (Mg(CH 3 COO) 2 4H 2 O) and 15-20g of polyvinylpyrrolidone (PVP, K30), measure 0.5L ethylene glycol ((CH 2 Oh) 2 ), poured into single-necked flasks successively. The above mixture was heated at 180 °C for 2 h under stirring in an oil bath, cooled to room temperature, and the product was centrifuged and washed three times with ethanol, and then dried overnight in an oven at 60 °C to obtain a magnesium oxide precursor. The obtained magnesium oxide precursor was put into a muffle furnace for calcination at 500 °C for 5 h to obtain white magnesium oxide powder.
[0039]Weigh a certain amount of 4-5g magnesium oxide and 1-2g ferric chloride hexahydrate (FeCl 3 ·6H 2 O) Dissolve and disperse in 300mL ethanol and sonicate for 15 min to disperse evenly. The mixed solution was dried in an oven at 60 °C to obtain a light yellow powder of magnesium oxide adsorbed on ferric chloride. Put the above powder in H 2 / Ar atmosphere at 8...
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