Electrocatalyst for fuel cell and preparation method of electrocatalyst
An electrocatalyst and fuel cell technology, applied in the field of electrochemistry, can solve the problems of unfavorable commercial application of fuel cells, low reserves, high cost, etc.
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Embodiment 1
[0031] An electrocatalyst for a fuel cell, the preparation of the electrocatalyst comprises the following steps:
[0032] S1: mixing folic acid and ferric chloride in a mass ratio of 1:5 to obtain a mixture;
[0033] S2: the mixture obtained in S1 is heated to 750°C at room temperature at a heating rate of 5°C / min for 235min, and then placed in a furnace and slowly cooled to room temperature to obtain an annealed product;
[0034] S3: Wash the annealed product three times with 2M hydrochloric acid first, and then wash it three times with double distilled water, and then dry the washed annealed product in a vacuum drying oven at 70°C for 12 hours, to obtain electrocatalyst sample 1, and denote sample 1 as m- NC-750.
Embodiment 2
[0036] The raw materials and operations used in Example 2 are the same as those in Example 1, except that the holding temperature is 650°C. The electrocatalyst sample 2 was prepared, and the sample 2 was referred to as m-NC-650.
Embodiment 3
[0038] The raw materials and operations used in Example 3 are the same as those in Example 1, except that the holding temperature is 850°C. The electrocatalyst sample 3 was prepared, and the sample 3 was referred to as m-NC-850.
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