Preparation method of Cu2O/In (OH) 3 heterojunction and application of Cu2O/In (OH) 3 heterojunction in electrocatalysis of CO2 to generate synthesis gas

The invention provides a preparation method of a Cu2O/In (OH) 3 heterojunction and application of the Cu2O/In (OH) 3 heterojunction in electrocatalysis of CO2 to generate synthesis gas, the preparation method of the Cu2O/In (OH) 3 heterojunction comprises the following steps: ultrasonically dissolving a copper source and an indium source in a solvent to form a uniform mixed solution, adding prepared NaBH4 with a certain concentration, standing at room temperature, and centrifuging, washing and drying to obtain the Cu2O/In (OH) 3 heterojunction; an electrochemical test shows that the Cu2O/In (OH) 3 heterojunction prepared by the method can generate synthesis gas with a stable H2/CO ratio in CO2RR, and has excellent durability, and the Cu2O/In (OH) 3 heterojunction prepared by the method has a relatively good application prospect and commercial potential. 本发明提供一种Cu2O/In(OH)3异质结的制备方法及其在电催化CO2生成合成气中的应用，所述的Cu2O/In(OH)3异质结制备方法步骤如下：将铜源、铟源超声溶解在溶剂中形成均匀的混合溶液后，再加入配置的一定浓度的NaBH4，室温静置后通过离心、洗涤和干燥获得Cu2O/In(OH)3异质结；电化学测试表明，本方