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|1. (WO2018121365) CARBON-BASED OXYGEN REDUCTION CATALYST, PREPARATION METHOD THEREFOR AND USE THEREOF|
|Title:||CARBON-BASED OXYGEN REDUCTION CATALYST, PREPARATION METHOD THEREFOR AND USE THEREOF|
Enclosed in the present invention is a carbon-based oxygen reduction catalyst, a preparation method therefor and use thereof. The method comprises: pre-oxidizing biomass in the air, uniformly mixing the product obtained from pre-oxidization with a pore forming agent and a catalyst, and obtaining the mixture; carbonizing the mixture under an inert gas protection condition, cooling to room temperature after carbonizing, removing the pore forming agent product and the catalyst product from the carbonization product by means of an acid, then washing several times and drying, and obtaining biomass based active carbon; performing a plasma treatment on the biomass based active carbon, so that a carbon-based oxygen reduction catalyst is obtained. Compared with the prior art, the present invention has the advantage that the carbon-based oxygen reduction catalyst has the appearance of having etched grooves and holes, has a specific surface area being as high as 1800 m2•g-1, and has both microporous properties and mesoporous properties. The prepared carbon-based oxygen reduction catalyst has an oxygen reduction performance conforming to a four-electron pathway and has an improved initial potential and limit current density, being an efficient carbon-based oxygen reduction catalyst.