A kind of preparation method of electrochemical carbon monoxide gas sensor electrode
A gas sensor and carbon monoxide technology, applied in the information field, can solve the problems of reducing catalyst activity, high cost, and reducing the specific surface area of catalyst particles, etc., and achieve fast response time, good output linearity, good selectivity and long-term stability.
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Embodiment 1
[0023] Embodiment 1: take by weighing 5.21 grams of Ce (NO 3 ) 3 ·6H 2 O powder, 0.73 g Cu(NO 3 ) 2 ·3H 2 Pour the O powder into a beaker, then weigh 3.15 grams of oxalic acid and pour it into the same beaker, then transfer it to a ball mill for ball milling for 8 hours, then take it out and dry it at 120°C for 8 hours, then transfer it to a mortar and grind until uniform, then weigh Put 0.1 gram of the product into another container, add 0.1 gram of superconducting C powder into it and pour it into the same beaker, drop 8 mL of ammonia water into it, stir until it becomes a uniform colloid, transfer to a water bath at 70°C for 8 Hours until the ammonia water is completely volatilized, then cooled at room temperature, the cooled powder is placed in a porcelain boat, transferred to a muffle furnace at 500°C for 4 hours, then cooled naturally, the cooled powder is transferred to agate and ground until uniform , transferred to a ceramic crucible, let it stand at room tempera...
Embodiment 2
[0024] Embodiment 2: take by weighing 7.38 grams of Ce (NO 3 ) 3 ·6H 2 O powder, 0.73 g Cu(NO 3 ) 2 ·3H 2 Pour the O powder into a beaker, then weigh 3.78 grams of oxalic acid and pour it into the same beaker, then transfer it to a ball mill for ball milling for 6 hours, then take it out and dry it at 120°C for 9 hours, then transfer it to a mortar and grind until uniform, then weigh Put 0.1 gram of the product into another container, add 0.1 gram of superconducting C powder into the same beaker, drop 7 mL of ammonia water into it, stir until a uniform colloid, transfer to a water bath at 80°C for 8 Hours until the ammonia water is completely volatilized, then cooled at room temperature, the cooled powder is placed in a porcelain boat, transferred to a muffle furnace at 500°C for 4 hours, then cooled naturally, the cooled powder is transferred to agate and ground until uniform , transferred to a ceramic crucible, let it stand at room temperature for 8 hours, added Nation ...
Embodiment 3
[0025] Embodiment 3: take by weighing 37.13 grams of Ce (NO 3 ) 3 ·6H 2 O powder, 0.73 g Cu(NO 3 ) 2 ·3H 2Pour the O powder into a beaker, then weigh 11.22 grams of oxalic acid and pour it into the same beaker, then transfer it to a ball mill for ball milling for 9 hours, then take it out and dry it at 120°C for 10 hours, then transfer it to a mortar and grind until uniform, then weigh Put 0.1 gram of the product into another container, add 0.1 gram of superconducting C powder into it and pour it into the same beaker, drop 8 mL of ammonia water into it, stir until a uniform colloid is obtained, transfer to a water bath at 80°C for 8 Hours until the ammonia water is completely volatilized, then cooled at room temperature, the cooled powder is placed in a porcelain boat, transferred to a muffle furnace at 500°C for 4 hours, then cooled naturally, the cooled powder is transferred to agate and ground until uniform , transferred to a ceramic crucible, let it stand at room temp...
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