Low temperature synthesis of nanocrystalline Co2B

Abstract

Nanocrystalline cobalt boride (Co2B) has been successfully synthesized by the reaction of CoCl2 with NaBH4 in the temperature range of 500-600°C in an autoclave. Characterized by X-ray powder diffraction (XRD), transmission electron micrographs (TEM), and Raman spectra, the composition and morphology of the products were confirmed. The mechanism for the formation of crystalline Co2B was proposed. This work contributes one facile method for preparing metallic borides. © 2010 The Ceramic Society of Japan. All rights reserved.