Perovskite CaMnO3 is a semiconductor material used as a supercapacitor, solar cell and catalyst. Different synthesis methods for perovskite synthesis will affect the physical and chemical properties of perovskite and catalytic activity. This study aims to synthesize CaMnO3 perovskite using the sol gel method with a CaCO3: MnO2 mole ratio (1:1 and 3:4) at various temperatures of 700°C; 800…