Oxygen reduction catalyst with high substance transfer rate and preparation method and application thereof

• Main Authors: TANG HAIBO, WANG RUI, MENG ZIHAN, TIAN TIAN, TANG HAOLIN
• Format: Patent
• Language: Chinese; English
• Published: 23.09.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; NANOTECHNOLOGY; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention belongs to the technical field of new energy materials, and particularly discloses an oxygen reduction catalyst with a high substance transfer rate and a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: mixing an inorganic oxide template with phthalocyanine salt, and grinding to obtain mixed powder; carrying out heat treatment on the mixed powder in an inert atmosphere to obtain a carbonized product; and carrying out acid pickling on the carbonized product, and drying to obtain the product. The oxygen reduction catalyst is prepared by adopting a solid-phase synthesis method, the synthesis time is shorter, the repeatability is high, and gram-level macro preparation can be achieved. Iron phthalocyanine is used as a metal source and a part of a carbon source and a nitrogen source, zinc phthalocyanine is used as the other part of the carbon source and the nitrogen source, and agglomeration of iron atoms is inhibited by utilizing microp