What are the catalysts for oxygen production with hydrogen peroxide?

Hydrogen peroxide is very unstable and will decompose at room temperature. The decomposition rate is accelerated when heated. The commonly used inorganic catalyst is manganese dioxide. The catalytic effect of trivalent iron ions is also very good. However, the catalytic effect of catalase is incomparable with inorganic catalysts. Catalase is widely found in animal liver, so you can try it if you are interested, so pig liver is better.