Preparation method and application of bifunctional series copper-based electro-catalysis nano material

• Main Authors: HUANG FANG, XU JING, XU AIHAO, HE HUIBING, MA JUNJIE
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY

The invention discloses a bifunctional series copper-based electro-catalysis nano material which is cuprous oxide/copper nano particles formed by uniformly doping antimony oxide between cuprous oxide and copper with a fluffy stacking structure, and the expression of the material is Cu2O/Cu-Sb2O3. The series bifunctional catalyst can be used for electrocatalytic reduction of carbon dioxide, and shows high selectivity to carbon monoxide under low potential and high selectivity to ethylene under high potential. Accordingly, the inventor also establishes a corresponding preparation method, namely, copper nitrate trihydrate and antimony trichloride are used as a copper source and an antimony source, potassium hydroxide is used as a precipitator, ascorbic acid is used as a reducing agent, and a hydrothermal method is adopted for synthesis after coprecipitation. In a word, the invention creates the precedent of the catalysis of the difunctional series copper-based electrocatalyst, overcomes the problems of instabili