ZnO/ZnFe2O4 composite sensitive material, preparation method thereof and application of ZnO/ZnFe2O4 composite sensitive material in acetone gas sensor
A gas sensor, composite sensitive technology, applied in the application of acetone gas sensor, ZnO/ZnFe2O4 composite sensitive material field, can solve the problems of lengthy reaction process, harsh experimental conditions, cumbersome operating procedures, etc.
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[0043] With ZnO / ZnFe 2 o 4 The heterogeneous structure is a sensitive material to make an acetone gas sensor, and the specific method is as follows:
[0044] ①Add 1.1g Zn(CH 3 COO) 2 2H 2 O and 0.0588g Na 3 C 6 h 5 o 7 2H 2 O was sequentially added to 200mL deionized water, kept stirring to make it fully dissolved, then measured 6mL ammonia water (30wt%) and added to the above solution, and kept stirring for 5min;
[0045] ② Transfer the obtained clear solution to a three-necked flask, and use microwave to heat the reaction solution to 90°C, set the heating time to 40min, and set the heating power to 300W;
[0046] ③ After the reaction, the microwave heating system automatically stops heating. After the reaction system is naturally cooled to room temperature, the three-necked flask is taken out, and the obtained white precipitate is alternately centrifuged and washed 6 times with deionized water and ethanol to wash off the remaining residue in the reaction solution. ...
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