Preparation method of high-performance bifunctional catalyst applied to zinc-air battery

The invention belongs to the technical field of catalyst preparation, and particularly relates to a preparation method of a high-performance bifunctional catalyst applied to a zinc-air battery. The preparation method of the high-performance bifunctional catalyst applied to the zinc-air battery comprises the following steps of (1) preparing SiO2 sol, (2) preparing a phenolic resin ethanol solution, (3) preparing Co/MCWs, and (4) preparing the Co3O4/MCWs composite material. The catalyst prepared through the method is low in development cost, the problems that a traditional supported catalyst is poor in conductivity, unstable in structure and few in active site are solved, and the excellent ORR/OER bifunctional catalyst is obtained. 本发明属于催化剂制备的技术领域，具体的涉及一种应用于锌空电池的高性能双功能催化剂的制备方法。所述应用于锌空电池的高性能双功能催化剂的制备方法，包括以下步骤：(1)制备SiO2溶胶；(2)制备酚醛树脂乙醇溶液；(3)制备Co/MCWs；(4)制备Co3O4/MCWs复合材料。该方法制备所得的催化剂开发成本低廉，改善了传统负载型催化剂导电性能差、结构不稳定以及活性位点少的问题，获得优异的ORR/OER双功能催化剂。