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The application belongs to the technical field of solid oxide fuel cell anode catalyst, and particularly relates to a preparation of a multi-doped layered perovskite anode and application thereof in ammonia solid oxide fuel cells. x Ba 1–x Mn 1–y TM y O 3–δ (0.4<=x<=0.6, 0<=y<=0.3, TM=Co, Fe, Cu), the precursor is phase changed under a reducing atmosphere to form a PrBaMn2O 5+δ layered perovskite with rich oxygen vacancies, and the doped transition metal is precipitated in the form of an alloy and anchored on the surface of the layered perovskite. The anode catalyst has a simple synthesis method, low cost, rich and flexible adjustable element composition. The obtained anode catalyst is made into a slurry and then assembled into a solid oxide fuel cell single cell sheet. The solid oxide fuel cell prepared by the application has good power output, electrical conductivity and stability at medium and high temperatures.

The invention discloses a cobalt-based catalyst and a preparation method and application thereof. Comprising a cobalt element and an alkali metal element; the cobalt element exists in the form of a simple substance, cobalt oxide or cobalt carbide; the alkali metal element is selected from at least one of Li, Na, K, Rb and Cs; the alkali metal element exists in the form of a simple substance; in the cobalt-based catalyst, the total mass of the metal elements is 100 wt%, the content of the cobalt element is 50-99.5 wt%, and the balance is alkali metal elements. The catalyst has high activity and oxygen-containing compound selectivity in Fischer-Tropsch synthesis. The phenomenon of low selectivity of the oxygen-containing compound in Fischer-Tropsch synthesis is effectively solved, and an effective way is provided for improving the selectivity of the oxygen-containing compound.