| Nano-materials have attracted great interest for a few years due to their marve -lous characteristics that are different from those of bulk materials. Recently,synth -esis methods of one, two and three dimension were greatly improved because of their possible application in optics, electricity, and nanodevices.In this thesis, we introduced the progress of nano-material and the synthesis methods in recent years. Copper nano-material have gained widespread interests for its use in the fields of photoelectronics, catalyst, superconductor et al. But it is difficult to synthesize copper nano-particles such as Cu(OH)2,CuI, Cu2O with special structure at low temperature. Yang et al synthesized new nanostrip by using self-reaction of Cu(OH)2 starting from Cu2S nano-wires. People in China have prepared Cu(OH)2 nano-wires in NaOH solution starting from copper complex Cu(DEHP)2. Guo et al have got Cu2O nano-cube of 300nm at low temperature of 55℃ using CTAB as surfactant. It's a breakthrough CuCl nano structure prepared by Andreas Taubert in ion liquid, but few researches was focused on the syntheses process of particles.Last year, we focused on the synthesis at low temperature and the electrochemical test of the nano-materials that was used in dye-sensitized solar cells. We have prepared Cu(I) nano-particles using PEI, CTAB, PEG as surfactants. Cul semiconductor of rod-like, strip-like structure and other more complex structure were synthesized. Now we focuse primarily on experiment about results:1. We fumble new synthesis of copper nano particles at room temperature, and hope make use of surfactants to get appropriate template, or in the effect of microemulsion. We make great efforts to get a new solution phase synthesis of hi -ghly uniform and monodisperse tetrahedral CuI nanoparticles successfully.Copper(II) salts in water are reduced with KI, in the presence of a surfactant.T -he average edge length of the cubes varies from 300 to 700 nm,as a function of... |
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