A tantalum compound electrocatalyst based on platinum oxide alloy and its preparation method and application
A technology of compound electrolysis and platinum oxide, which is applied in the field of electrocatalysis, can solve the problems such as the decline in the performance of electrolyzed water and ozone, and achieve the effects of low cost, broad application prospects, and improved stability
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Embodiment 1
[0029] Example 1: PtNiO 2 / Ta 3 N 5 Synthesis
[0030] 1) Take the tantalum powder and place it in a muffle furnace and fire it in an air atmosphere at a firing temperature of 500 ℃ and a firing time of 5 h to obtain a white powder, namely tantalum oxide;
[0031] 2) Step 1) The obtained tantalum oxide, sodium chloride and sodium fluoride are mixed in a molar ratio of 4:9:1, and a small amount of ethanol is added to the obtained solid mixture to fully grind (the ethanol will wet the surface of the solid mixture), and then place it at 550 Calcination in a muffle furnace for 4h
[0032] 3) Place the calcined powder in step 2) in a tube furnace and calcinate in an ammonia atmosphere at a calcining temperature of 900℃, a calcining time of 7 hours, and an ammonia flow rate of 200 mL / min to obtain tantalum nitride Nanorod catalyst;
[0033] 4) Wash the tantalum nitride nanorod catalyst obtained in step 3) with deionized water 4 times, and then dry it in a vacuum drying oven at 60 ℃ for 12 ...
Embodiment 2
[0039] Example 2: PtCoO 2 / Ta 3 N 5 Synthesis
[0040] 1) Take the tantalum powder and place it in a muffle furnace and fire it in an air atmosphere at a firing temperature of 500 ℃ and a firing time of 5 h to obtain a white powder, namely tantalum oxide;
[0041] 2) Step 1) The obtained tantalum oxide, sodium chloride and sodium fluoride are mixed in a molar ratio of 4:9:1, and a small amount of ethanol is added to the obtained solid mixture to fully grind (the ethanol will wet the surface of the solid mixture), and then place it at 550 Calcination in a muffle furnace for 4h
[0042] 3) Place the calcined powder in step 2) in a tube furnace and calcinate in an ammonia atmosphere at a calcining temperature of 900℃, a calcining time of 7 hours, and an ammonia flow rate of 200 mL / min to obtain tantalum nitride Nanorod catalyst;
[0043] 4) Wash the tantalum nitride nanorod catalyst obtained in step 3) with deionized water 4 times, and then dry it in a vacuum drying oven at 60 ℃ for 12 ...
Embodiment 3
[0048] Example 3: PtFeO 2 / TaON Synthesis
[0049] 1) Take the tantalum powder and place it in a muffle furnace and roast it in an air atmosphere at a roasting temperature of 500°C and a roasting time of 5 hours to obtain a white powder, which is tantalum oxide;
[0050] 2) Step 1) The obtained tantalum oxide, sodium chloride and sodium fluoride are mixed in a molar ratio of 4:9:1, and a small amount of ethanol is added to the obtained solid mixture to fully grind (the ethanol will wet the surface of the solid mixture), and then place it at 550 Calcination in a muffle furnace for 4h
[0051] 3) Place the calcined powder in step 2) in a tube furnace and calcinate in an ammonia atmosphere at a calcining temperature of 850°C, a calcining time of 5 hours, and an ammonia flow rate of 50 mL / min to obtain a granular Tantalum oxynitride catalyst;
[0052] 4) Wash the granular tantalum oxynitride catalyst obtained in step 3) with deionized water 4 times, and then dry it in a vacuum drying ove...
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