Copper phthalocyanine polymer (at) copper nanowire core-shell nanomaterial and preparation method and application thereof

Abstract

The invention belongs to a copper phthalocyanine polymer and copper nanowire core-shell nano material in the field of electrochemical carbon dioxide reduction of a nano material catalyst technology, and a preparation method and application thereof. According to the copper phthalocyanine polymer and copper nanowire core-shell nano material disclosed by the invention, a copper nanowire is used as a copper source and a carrier, and a core-shell structure with the copper nanowire as a core and the copper phthalocyanine polymer as a shell is formed. The preparation method comprises the following steps: firstly, synthesizing a copper nanowire through a hydrothermal method, then putting the copper nanowire into a microwave reactor, enabling copper on the surface of the copper nanowire to be coordinated with a cyano group, and forming a two-dimensional cross-linked network copper phthalocyanine polymer on the surface of the copper nanowire as a template, thereby forming the copper phthalocyanine polymer-copper nanowire core-shell nano material. The method can be applied to electrochemical CO2 reduction.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and specifically relates to the field of electrochemical carbon dioxide reduction, in particular to copper phthalocyanine polymer@copper nanowire core-shell nanomaterials and their preparation methods and applications. Background technique [0002] Metallophthalocyanines (MPcs), consisting of a macrocyclic ligand framework and a metal center with tunable oxidation states, have attracted researchers due to their low cost, easy availability, well-defined active sites, and tunable structures. widespread attention. However, its own planar macrocyclic conjugated structure makes the phthalocyanine molecules have a strong π-π interaction, which leads to its easy aggregation and poor conductivity, which will greatly reduce the specific surface area and electrons of the catalyst. transport capacity, leading to a reduction in its catalytic performance. Therefore, improving the dispersion and conduc...

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Problems solved by technology

However, its own planar macrocyclic conjugated structure makes the phthalocyanine molecules have a strong π-π interaction, which leads to its easy aggregation and poor conductivity, which will greatly reduce the specific surface area and electrons of the catalyst. transport capacity, leading to a reduction in its catalytic performance

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