The Study On Preparing Of Antimony Nano-particle By Electrochemical Method

This thesis carries on the study of preparing of Antimony Nano-panicle by electrochemical Method.The Antimony nano-powders is characterized and analysised by using X-ray diffraction(XRD),transmission electron microscopy(TEM)and Fourier transform infrared spectroscopy(FT-IR).Research conducted a large number of test for electrochemical preparation of antimony nano-powders.By the detection means of XRD, TEM and FT-IR infrared spectroscopy,this paper analysised the preparation of powders,phase structure,particle size and reunion situation. The results showed that:under different experimental conditions,the prepared nano-phase structure of antimony powder are all the same,just the powder of particle size,morphology, agglomeration situation,and oxidation conditions will change with the experimental conditions.Found that in the preparation process of nanometer powder,the dispersant has an important role,that nano-nuclei will be coated by dispersant after electrodeposition.Thus inhibiting the growth of grain, while prepared nanoparticles with the room temperature anti-oxidation ability.For the in-depth analysis on choice of surface dispersant,Through experiment we found that use emulsifier OP-10 as surface dispersant and conductd the preparation of antimony nano-powders,can access the size smaller, dispersing well,particle size distribution than narrow and strong antioxidant properties of antimony nano-particles.In order to examine the current density and electrolyte electrochemical preparation time for particle effects of nanometer powder, we conducted a single factor experiment.The size of the current density have influence for the cell nucleation rate.The electrolyte time affects concentration of the dispersant.The results showed that,Current density and electrolytic time can affect the size,reunion and oxidation.The current density, less than 10mA/cm2,have big nanoparticles;Current density 25mA/cm2 can obtain the ideal nanometer spherical particles.we design the electrolyte time,can get particles from 12nm to 100nm.When the electrolyte time is 30min,can obtain the ideal nanometer spherical particles.