A low temperature mechanochemical synthesis and characterization of amorphous Ni–B ultrafine nanoparticles

A novel method for the synthesis of amorphous Ni–B nanoparticles has been developed using a mechanochemical displacement reaction by high energy ball milling . Based on various characterizations including XRD , ICP, BET, DSC , SEM, TEM and XPS , the synthesized Ni–B amorphous nanoparticles are present in the form of uniform and homogeneously distributed ultrafine nanoparticles with the size around 5   nm. Larger specific surface area and higher thermal stability can be obtained by such mechanochemical method than the conventional wet-chemical reduction method. The present work provides a novel method for preparation of other amorphous nanoparticles, and greatly expands the industrial application space of Ni–B amorphous nanoparticles.