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在十二烷基硫酸钠、吐温80、苯、正丁醇、十二烷基硫醇和硫酸铜混合而成的乳液中,采用电化学合成的方法制备稳定的、粒径均匀的Cu纳米颗粒.采用XRD、TEM及FT-IR对所制备的Cu纳米颗粒的结构、形貌、粒径大小及表面键合性质进行表征.结果表明,制备的纳米铜粉为球型颗粒,分散较好,尺寸较为均匀,约为60~80 nm,并且具有立方晶型结构;得到的纳米铜颗粒表面含有一层有机物质,形成了包覆层较薄的核壳结构,这种包覆层阻止了纳米铜粉在空气中或水中的团聚和氧化,起到提高纳米铜颗粒的分散性和稳定性的作用.
In the emulsion of sodium dodecyl sulfate, Tween 80, benzene, n-butanol, dodecyl mercaptan and copper sulfate, a stable, uniform-sized Cu nanoparticle was prepared by electrochemical synthesis The structure, morphology, particle size and surface bonding properties of the prepared Cu nanoparticles were characterized by XRD, TEM and FT-IR.The results show that the prepared nano-copper particles are spherical particles with good dispersion, The size is relatively uniform, about 60 ~ 80 nm, and has a cubic crystal structure; the surface of the resulting nano-copper particles containing a layer of organic matter, the formation of a thin core-shell structure, the coating prevents the nano Copper powder agglomeration and oxidation in the air or water, play a role in improving the dispersion and stability of nano-copper particles.