| The choline chloride/ urea based RTIL and choline chloride/ ethylene glycol based RTIL were synthesized and studied by FT-IR.The possibility of preparation of Au and Cu nanoparticles by electrochemical sacrificial anode were investigated in RTIL systems: chloride/urea+AuPPh3Cl, chloride/urea+CuCl2.The results indicate that under proper conditions, the Au and Cu nanoparticles can be obtained in the RTIL systems mentioned above.The effects of the concentration of metal tetrafluoroborate,electrolysis temperature and cathode ,et al on the shape of electrolysis products were studied.The electrolysis products were characterized by SEM,TEM,XRD,FT-IR,TG.The possibility of electrolysis preparation of Ag nanoparticles by electrochemical sacrificial anode was investigated in RTIL systems: choline chloride/ethylene glycol.The results indicate that under proper conditions,the Ag nanoparticles can be obtained in the RTIL systems mentioned above.The effects of the concentration of silver tetrafluoroborate,electrolysis temperature and cathode, et al on the shape of electrolysis products were studied. The electrolysis product was characterized by SEM, TEM,XRD,FT-IR,TG.Choline chloride based RTIL have the advantage of cheap material and simple synthesis.Through the research of choline chloride based RTIL in the electrochemical preparations of Au , Ag and Cu nanoparticles, the metals of gold,silver and copper directly into Au,Ag and Cu nanoparticles are expected to convert . Experiments show that choline chloride based RTILS were not only used as electrolyte,but also as the dispersant and stabilizing agent to prevent the nanoparticles aggregating.Preparing the nanoparticles in the choline chloride based RTIL accord with the requirement of green chemistry,and embody the characterization of green and friendly to enviroment.So the study of this paper is of certain significance in the area of theory and appliance.
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