Study On The Electrodeposition And Mechanism Of Rare Earth (La)-iron Race (Co, Ni) Alloy In DMF

Electrodeposition is a traditional technology on material surface treatment,generally can be processed at room temperature,antioxidant or reducing agent is electronic,cheap equipment investment, high yield and high quality,etc,was widely used in the preparation of alloy. Rare earth elements have the reputation of "industry of vitamin", alloy with rare earth elements has special function, multiple alloying of La-Ni alloy is a new hydrogen storage material one. Electrochemical experiments in organic system, has the electrochemical window wide, the system itself is not reacting with active electrode materials, etc.Electrochemical experiments in organic solvents in this thesis,which can overcome the formation of hydrogen and the influence of hydrolysis in the aqueous system, and can overcome the preparation of the material resources with mechanical consumption.Full text mainly includes the following five parts:The first part, namely the introduction section.In the introduction part,the electroplating technology, electroplating principle, the principle of electroplating alloy,the characteristics and classification of electroplating in the organic system,the present research situation and develop-ment trend of rare earth materials and the purpose of this research, etc,were summarized.The second part is the experimental review,including the drug and reagents, experiment contents and the narrative of experimental principle, etc.The third part is the experiment of electrochemical properties, in this part,electrochemical properties of Mg2+and La3+in different electrode with linear scanning technology, constant pote-ntial technology were researched,and the electrochemical dynamics were measured providing the theory reference for electrochemical discipline research.In the fourth part,the nucleus mechanism of Mg2+, La3+,Co2+, and Ni2+on the Pt electrode were studied with a constant potential technology, the results show that these ion in this experi-ment system is a continuous nuclear. These experiments provide theoretical reference for the the-ory of the electrochemical research.The fifth part is electrodeposition experiment, preparing alloy with a constant potential tech-nology. EDS results show that:La-Ni alloy, La-Ni-Co alloy were prepared with electrochemical deposition,SEM results show that:surface of the La-Ni alloy is granular, and has a lot of pore,La-Ni-Co alloy plating is a layer. Its crystal characterized by XRD show that:La-Ni alloy, La-Ni-Co alloy are the amorphous alloy. The study also found that different sedimentary potential, sed-imentary time on plating is of certain influence to speed.