Method for preparing solid-oxide fuel battery cathode
A fuel cell cathode and solid oxide technology, which is applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problem of low catalytic activity, and achieve the effects of high catalytic activity, multiple three-phase reaction interfaces, and excellent performance
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specific Embodiment approach 1
[0007] Specific embodiment one: the preparation method of the solid oxide fuel cell cathode in this embodiment is realized according to the following steps: 1. According to the chemical formula La 1-x Sr x MO 3 , La(NO 3 ) 3 , Sr(NO 3 ) 2 and M(NO 3 ) 2 The mixed solution, then add citric acid solution and stir evenly, the molar ratio of citric acid and metal ion substances in the mixed solution is 2:1, then add NH 3 ·H 2 0 to the pH of the solution = 6~7; 2. Put the solution in a constant temperature water bath at 60~80°C and stir until a sol is formed; 3. Pour the sol into the pores of the anodized aluminum template, and then place it at 700~ Calcining at 900°C for 1 to 3 hours, taking it out and then putting it into NaOH with a concentration of 6mol / L for 10 to 60 minutes to obtain the cathode of the solid oxide fuel cell; step 1 chemical formula La 1-x Sr x MO 3 where M is Mn, Fe or Co, 0
specific Embodiment approach 2
[0008] Embodiment 2: This embodiment differs from Embodiment 1 in that the total concentration of solutes in the mixed solution in Step 1 is 1.5-3 mol / L. Other steps and parameters are the same as those in Embodiment 1.
specific Embodiment approach 3
[0009] Embodiment 3: This embodiment differs from Embodiment 1 in that the total concentration of solutes in the mixed solution in step 1 is 2 mol / L. Other steps and parameters are the same as those in Embodiment 1.
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