Preparation method and application of lithium alkylide modified layered double hydroxide catalyst

• Main Authors: CHEN XIFAN, WANG JUNZHONG, ZHANG YAMENG
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY

The invention discloses a preparation method and application of an alkyl lithium modified layered double metal hydroxide (LDH) catalyst. The preparation method comprises the following steps: dissolving layered double metal hydroxide (LDH) in alkyl lithium, heating, centrifugally washing with n-hexane and ethanol after 2 days, and freeze-drying to obtain the alkyl lithium modified layered double metal hydroxide (LDH) catalyst. The catalyst prepared by the invention has better catalytic performance and better stability than a noble metal catalyst in electro-catalytic oxygen evolution. According to the present invention, the hydrogen-oxygen ratio and the metal ion valence state of the layered double-metal hydroxide (LDH) can be effectively regulated and controlled, the crystalline layered double-metal hydroxide (LDH) can be converted into the special amorphous structure by using the catalyst preparation method, and the used layered double-metal hydroxide raw material has characteristics of low price, wide distri