| Summary: | 碩士 === 淡江大學 === 化學學系碩士班 === 104 === In this research we pay attention on the synthesis of Gold Nanorods (GNRs) and Au Dumbbells (AuDBs) as core to format Au-Ag core-shell nanoparticles. At experiment we use two different type of surfactants, Cetyltrimethylammonium bromide (CTAB) and Sodium dodecyl sulfate (SDS), as the reaction environment. We make GNRs in CTAB system and then use system transform to move GNRs to the System of SDS, in the end we coated silver as shell. In the experiment, we separate in two part to coated silver shell one is GNRs another one is AuDBs each one with high temperature condition and Room temperature condition. We found that if we add metal salt like NaBr or NaCl in high temperature condition, it will have influence to reaction time. Even more will affect the ratio of the shape of gold-silver nanoparticle. Through use the difference meatal salt, and the change of temperature, we could synthesis rectangular, bipyramid and irregular shape, we also have more realize for the shape control and the homogeneity improve.
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