Ethanol sensor based on horseshoe-shaped SO2 sensitive material having annular meso-pores, and production method of sensor
A horseshoe-shaped and circular-shaped technology, applied in the direction of material analysis, material analysis by electromagnetic means, instruments, etc., to achieve the effects of good material crystallinity, improved sensitivity, and simple manufacturing process
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[0041] Horseshoe-shaped SnO with circular mesopores 2 Sensitive material made as sensitive material C 2 h 5 OH sensor, its specific production process:
[0042] 1. First, dissolve 0.4g of the tin precursor sodium stannate in 100mL of deionized water, and then dissolve 1.0g of cetylpyridinium chloride in 20mL of ethanol solution. After stirring at room temperature for 45 minutes, the two solutions were mixed together and continued to stir for 60 minutes;
[0043] 2. Add 5 μL of 1,3,5-trimethylbenzene to the above mixed solution and continue to stir for 60 minutes. After standing and aging at room temperature for 72 h, the obtained precipitate was centrifuged and washed once with deionization. The resulting product was soaked in 20 mL of an aqueous solution of phosphoric acid. After 4 hours, wash and centrifuge 6 times with deionized water and ethanol. The product was dried at 100°C, and the obtained powder was calcined at 400°C for 4h. That is, horseshoe-shaped SnO with ...
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