A copper-based ternary composite metal oxide hollow nanomaterial, preparation method and application

Abstract

The invention provides a copper-based ternary composite metal oxide hollow nanomaterial, a preparation method and an application. Compared with the existing technology, the method for preparing a copper-based ternary composite metal oxide hollow nanostructure has universal advantages. adaptability, and the product has a single shape, uniform size, and a simple method. The product has high purity, no impurities, low production cost, short process, low equipment requirements, easy amplification experiments and can realize industrial production; moreover, in this method, cheap urea is used as the constructing agent of the hollow structure and the regulating glycol The ratio to water and the amount of non-polar surfactant specifically control the particle size of the material; the prepared homogeneous copper-based ternary composite metal oxide hollow nanomaterial can be used in the reduction of p-nitrophenol, showing a reaction It has the advantages of fast speed, high catalytic efficiency, good circulation effect, and low cost.

Description

technical field [0001] The invention relates to the preparation and application fields of metal oxide micro-nano materials, in particular to a copper-based ternary composite metal oxide hollow nano-material, a preparation method and an application. Background technique [0002] As a typical class of materials, hollow micro-nanostructure materials have attracted the attention of researchers because of their low density and high specific surface area, and their hollow parts can accommodate a large number of guest molecules or large-sized guests, which can produce some The unique properties based on the microscopic "wrapping" effect make the hollow micro-nanostructures have important applications in the field of energy storage. Based on this point, there are many ways to prepare micro-nanostructures with hollow structures. In summary, there are mainly direct synthesis method (Prog.Chem., 2008, 20, 679), hard template method (Angew.Chem.Int.Ed., 2004, 43,3827), ion exchange met...

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Problems solved by technology

[0003] We know that the direct synthesis method is often poor in universality when synthesizing hollow structures. It can only synthesize a specific hollow structure, and there is no room for popularization and application, so its development is also greatly restricted.

The hard template method generally requires more than three steps, such as: template synthesis, template surface compounding-removing templates and (or) annealing processes, etc. This synthesis method also has relatively large industrial applications due to factors such as complex processes and high costs. limitations

The development based on the Kirkendall effect and the precipitation-heat treatment method has attracted much attention, but generally requires a hard template as a support. Therefore, the promotion still faces weaknesses such as complex synthesis routes and high economic costs.

[0004] However, there are few reports on the controlled synthesis of copper-based ternary composite metal oxide hollow nanomaterials with hollow and porous structures.

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