Method for preparing synthesized cobalt-gold double-metal alloy nano particle

Abstract

The invention provides a method for preparing a synthesized cobalt-gold double-metal alloy nano particle and belongs to the technical field of inorganic material preparation processes. The method comprises the following steps of: 1, adding polyvinylpyrrolidone and inorganic salt of cobalt into an ethylene glycol solvent to obtain mixed solution; 2, under the condition of stirring, adding hydrazine hydrate and ethylene glycol solution of chloroauric acid into the mixed solution sequentially; and 3, removing a heating source after the reaction is stopped, performing centrifugal separation, collection and deposition, washing by using ethanol and drying. The cobalt-gold double-metal alloy nano particle prepared by using the method for preparing the synthesized cobalt-gold double-metal alloy nano particle has the characteristic of a chain structure. In the method, inorganic substances are used as raw materials, so the reaction is low in toxicity and the raw materials are more economical; the cobalt and the gold of the product are distributed uniformly, and a proportion of the cobalt to the gold can be regulated within a certain range; moreover, the reaction time is short, the process is simple and the production can be enlarged easily.

Description

technical field

[0001] The invention relates to a preparation method for synthesizing cobalt-gold bimetallic alloy nanoparticles, and belongs to the technical field of preparation of inorganic compound semiconductor materials. Background technique

[0002] The combination of gold and magnetic nanoparticles will not only realize the optical-magnetic function compounding, but also help to overcome the disadvantages of easy agglomeration and poor chemical stability of magnetic nanoparticles in the application. Sensing, imaging, disease diagnosis and drug delivery) have great application prospects. In recent years, the synthesis and properties of gold / magnetic nanoparticle composites have become a hotspot in the field of international frontier research.

[0003] At present, the method used in the preparation of gold / magnetic metal composites is mainly the oxidation-reduction method, that is, using relatively active magnetic metal particles as self-sacrificing templates, adding ...

Images