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ZHL0627(金币+20, 翻译EPI+1): 2010-04-02 09:34
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As everyone knows, surfactants affect crystal growth behavior，different surfactants because of their different physical and chemical properties affect the solubility of reactants, reaction activity, dispersion, in particular the polar of surfactants and coordination ability has an important implications to the morphology. In recent years,PVP as a stabilizer and structure directing agent has been successfully prepared lead and silver nanowires, nanorods, and other novel nanostructures. In our experiment, PVP may be used as cap-like agent by selective adsorption and desorption to control the growth rate of different crystal faces, thus promoting the growth of the crystal orientation and to prevent particle aggregation, stabilize the initial particles. |
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