Preparation method and application of two-dimensional layered acylhydrazone Mn-based coordination polymer

• Main Authors: WANG XIN, TIAN DAYONG, WANG JIANGUANG, YANG LIGUO, ZHOU ZHONGYUAN, LIANG YANMEI, ZHANG YONGHUI, WANG FANG
• Format: Patent
• Language: Chinese; English
• Published: 23.12.2022
• 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 preparation method and application of a two-dimensional layered acylhydrazone Mn-based coordination polymer, and belongs to the technical field of coordination chemistry. 3-ethyoxyl salicylaldehyde isonicotinoyl hydrazone is used as a ligand, metal Mn is used as a core, pyridine nitrogen groups are mutually vertical to bridge a binuclear complex to form a two-dimensional sheet structure, and sheets are mutually stacked to form a two-dimensional layered structure; and carrying out high-temperature pyrolysis and two-dimensional layered structure evolution to form the Mn < 2 + > O inlaid two-dimensional carbon nanosheet composite material. The structure evolution of the two-dimensional layered polymer has template property in the pyrolysis process, the specific capacity of the pyrolysis product reaches up to 614.1 mA g <-1 > after 600 cycles under the current density of 200 mA g <-1 >, and the rate capability is 311.5 mAh g <-1 > under the large current density of 500 mA g <-1 >. The tw