Method for growing high-entropy alloy nanoparticles on flexible substrate

Abstract

The invention provides a method for growing high-entropy alloy nanoparticles on a flexible substrate. The method comprises the steps that the flexible substrate is obtained; a three-dimensional graphene film with a preset shape is grown on the flexible substrate by adopting a laser direct writing technology; a precursor solution of the high-entropy alloy nanoparticles is obtained; the precursor solution is dropwise added onto the three-dimensional graphene film to form a pretreated sample; and radiation heating treatment is performed on the three-dimensional graphene film on the pretreated sample by adopting the laser direct writing technology to obtain the high-entropy alloy nanoparticles. Based on the technical scheme, the uniformity of the size of the high-entropy alloy nanoparticles and the total loading capacity of the alloy can be effectively improved; high-temperature thermal damage to the flexible substrate is effectively avoided; and meanwhile, a pulse laser pyrolysis growth mechanism is also conducive to obtaining the high-entropy alloy nanoparticles with a single phase.

Description

technical field [0001] The invention relates to the technical field of nano synthesis, in particular to a method for growing high-entropy alloy nanoparticles on a flexible substrate. Background technique [0002] Flexible electronics is an emerging electronic technology that manufactures organic / inorganic functional materials, electronic devices or systems on flexible substrates. It has the characteristics of light, thin, portable, and wearable, and can realize the efficient integration of information, people, things, and the environment. It has broad application prospects in information, energy, medical, national defense and other fields. High-entropy alloy nanoparticles are a new type of nanomaterials composed of five or more metal elements with a single phase. In recent years, they have attracted extensive attention in the fields of catalysis, energy, and sensing. [0003] Although the traditional wet chemical method is often used to synthesize alloy nanoparticles with d...

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Problems solved by technology

[0003] Although the traditional wet chemical method is often used to synthesize alloy nanoparticles with different shapes, sizes and structures, it is difficult to prepare multi-component alloy nanomaterials with more than three element combinations.

Some schemes in the prior art can synthesize five-element high-entropy alloy nanoparticles by solvothermal method, but this method is not universal, especially not sui

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