Electrocatalyst for fuel cell and preparation method of electrocatalyst

Abstract

The invention provides an electrocatalyst for a fuel cell and a preparation method of the electrocatalyst. The electrocatalyst is prepared from the following raw materials in parts by mass: 1 part of folic acid and 3-7 parts of ferric trichloride. The preparation method comprises the steps of S1, mixing folic acid and ferric trichloride according to a mass ratio of 1: 3-1: 7; S2, annealing the mixture obtained in the step S1 for 6 hours; S3, washing a product obtained after annealing in the S2 is completed; and S4, drying the product washed in the step S3 to obtain the electrocatalyst. Folic acid is adopted as a main raw material, the carbon material electrocatalyst doped with a large amount of nitrogen elements is obtained through high-temperature pyrolysis, and the electrocatalyst is high in catalytic activity, low in cost, simple in process and suitable for commercial production.

Description

technical field

[0001] The invention belongs to the field of electrochemistry, and in particular relates to an electrocatalyst for a fuel cell and a preparation method thereof. Background technique

[0002] Hydrogen-fueled proton exchange membrane fuel cells are devices that can convert chemical energy into electrical energy, and are widely used in fuel cell vehicles due to their high energy density, environmental friendliness, cleanliness and high efficiency. At present, many countries in the world are committed to the research and development of fuel cell vehicles and actively promote their commercialization. The key to fuel cells lies in the development of electrocatalysts. The existing electrocatalysts for fuel cells are mainly platinum-series precious metals. Although platinum-series precious metals have excellent catalytic properties, their reserves are generally low and their costs are generally high, which is very unfavorable for the commercial application of fuel c...

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