Cationic modified covalent cobalt porphyrin polymer, preparation method thereof and application of cation modified covalent cobalt porphyrin polymer in electrocatalytic oxygen reduction reaction

• Main Authors: WANG YABO, MEI BENXING, ZHANG HANG, CAO RUI
• Format: Patent
• Language: Chinese; English
• Published: 23.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses a cation-modified covalent cobalt porphyrin polymer, a preparation method thereof and application of the cation-modified covalent cobalt porphyrin polymer in electrocatalytic oxygen reduction reaction, and the cation-modified covalent cobalt porphyrin polymer is prepared by introducing a cation functional group into a cobalt porphyrin complex to form cation-modified cobalt porphyrin-5, 15-dibromo-10, 10-di-tert-butyl-4-methyl-1, 3, 4-triazole-5, 15-dibromo-10, 10-di-tert-butyl-4-methyl-1, 3-dione. The preparation method comprises the following steps of: performing cross coupling on 2, 20-bis (2-benzyltrimethyl ammonium hexafluorophosphate) cobalt porphyrin and a tetra (4-ethynylphenyl) methane connector through sonogashira coupling reaction chemical bonds to form the sonogashira coupling reaction. According to the cobalt porphyrin complex modified by the quaternary ammonium salt cation functional group on the molecular level, the positive charge electrostatic effect is successfully int