Preparation method of zinc-calcium hydroxide catalyst and application thereof

Abstract

This invention belongs to the field of electrochemical synthesis technology, specifically relating to a method for preparing a zinc-calcium hydroxide catalyst and its application. This invention involves adding hexamethylenetetramine, CaCl2, ZnSO4, and NaSnO3 to deionized water, and utilizing a one-step hydrothermal method to prepare the zinc-calcium hydroxide catalyst (ZnSO4). x Ca 1‑x Controllable preparation of Sn(OH)6. Through Zn 2+ For Ca at site A in CaSn(OH)6 2+ By partially substituting the catalyst, the surface hydroxyl environment and hydrophilicity are improved while maintaining the stability of the perovskite-derived hydroxide framework, thereby enhancing the adsorption and activation capacity of water molecules and improving the activity, selectivity, and stability of H2O2 generation. The catalyst is then supported on a conductive substrate to construct an anode for in-situ electrochemical synthesis of hydrogen peroxide via two-electron water oxidation. This overcomes the problems of low yield, poor selectivity, and severe product decomposition associated with traditional methods, providing a new solution for water treatment and green chemistry.

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