Abstract: Provided are a catalyst and a method of preparing the same. The catalyst has a ternary Prussian blue analogue having transition metals M1, M2, and M3 and represented by the Formula (1) as defined herein, and can be used as a catalyst for oxygen evolution reaction. The method includes separately dissolving transition metal salts, ferrocyanide of alkali metals, and alkali metal salts in different solutions; adding the first two solutions to the third solution; mixing; precipitating; and drying. The ternary Prussian blue analogue catalyst is prepared by a simple and low-energy-consuming co-precipitation method, and the ternary Prussian blue analogue exhibit excellent electrocatalytic property through the synergistic effect of multiple transition metals.

Abstract: Provided are a catalyst and a method of preparing the same, and the catalyst comprises a ternary Prussian blue analogue and the structure of the ternary Prussian blue analogue is as defined herein. The present disclosure prepares the ternary Prussian blue analogue catalyst by a simple and low-energy-consuming co-precipitation method, and the ternary Prussian blue analogue exhibit excellent electrocatalytic property through the synergistic effect of multiple elements.