Process for preparing nano metallic nickel powder

Abstract

The invention relates to a method for preparing a metallic nickel nanometer particle, and belongs to the technology field for preparing nanometer materials by liquid-phase chemistry revivification. The method adopts sodium hydrosulfite as the reducer for reducing nickelous hydroxide under the alkali condition, and adopts polyvinyl pyrrolidon as the dispersant and propylene glycol and water mixed liquor as the reaction medium, thereby generating nickel nanometer particles with the particle diameters of 30-60mm. The method has the characteristics of simple technological process, low production cost and feasible industrialized production.

Description

A kind of method for preparing nano metal nickel powder Technical field: The invention relates to a method for preparing nanometer metal nickel powder by a liquid phase reduction method, which belongs to the field of nanotechnology. Background technique: As a transition metal nanomaterial, nano-metallic nickel powder has great potential in the fields of high-efficiency catalysts, lubricants, light-absorbing materials, coatings, sensors, conductive pastes, high-density magnetic recording materials, activated sintering additives, high-performance electrode materials, and ceramic toughening. It has broad application prospects and is one of the hot spots in the development of novel functional materials at home and abroad. Among the various preparation methods of nano-metal nickel powder, the solution reduction method has become a research hotspot because of its simple process and fine and uniform product particles. In the solution reduction method, hydrazine hydrate is often...

AI Technical Summary

Problems solved by technology

Apparently, the reduction of nickel salt with hydrazine to prepare nano-metal powder has the disadvantages of large consumption of hydrazine and high production cost.