Composite catalyst as well as preparation method and application thereof

The invention relates to a composite catalyst as well as a preparation method and application thereof. The composite catalyst comprises carbon black and a metal organic framework material arranged on the surface of the carbon black, the metal organic framework material comprises the following raw materials: cobalt salt and an organic ligand; the mass ratio of the carbon black to the cobalt salt is (2-6): 1. The composite catalyst does not need introduction of platinum, and is low in cost, high in catalytic activity and excellent in electrochemical performance. 本发明涉及一种复合催化剂及其制备方法和应用，所述复合催化剂包括炭黑以及设置于所述炭黑表面的金属有机骨架材料；所述金属有机骨架材料的原料包括钴盐和有机配体；所述炭黑和钴盐质量比为(2-6):1。本发明所述复合催化剂无需铂的引入，成本低廉，催化活性高，电化学性能优异。