Preparation and characterization of the Fe series polybasic nano-alloys by room temperature solid-solid reaction

The Fe series polybasic nano-alloys were prepared by room temperature solid-solid reaction with the transition metal chlorides and potassium borohydride as raw materials.The PVP was added as dispersant.The resultants were characterized by inductively coupled plasma emission spectroscopy,X-ray powder diffraction, transmission electron microscopy and thermal analysis.The results showed that the Fe-Ni-Co-B nano-alloy was mainly amorphous whisker with length of 100-200nm and diameter of 2-4nm,the average particle size of the FeNi-Cu-B nano-alloy was about diameter of 20nm.The catalytic properties of the iron series polybasic nano-alloys on the thermal decomposition of the ammonium perchlorate had been studied.The study showed that the two nano-alloys obviously reduced decomposition temperature of the pyrolysis process of ammonium perchlorate and enhanced decomposition heat.