本論文以利用電化學法在離子液體中製備金屬奈米材料，可分為兩部分: (一)在室溫型離子液體(EMI-DCA)中電沉積銅-錫合金奈米材料;(二)在路易士酸性的離子液體(ZnCl2-EMIC)中，電沉積金鋅的奈米線以及金的多孔性奈米線。
利用電化學方法可以單一步驟製備出銅-錫合金的六角形中空管柱和奈米刷，利用改變不同銅-錫濃度比例，在低電流密度-0.4毫安培/平方公分下，經由粉末x光繞射儀和元素分析儀可以得知六角中空柱由Cu10Sn3相組成，而奈米刷則由Cu3Sn相組成。除此之外，利用改變溶液中銅錫濃度、電位和電流，可以控制鍍層的形貌。
利用較大的過電位在路易士酸性的鋅鹽中可直接電鍍出金鋅的奈米線，而在奈米線中金的成分可以利用控制溶液中四氯化金的濃度而改變。多孔性金奈米線則可以利用氯化氫酸蝕或是在適當的環境下直接電鍍獲得。所得的鍍層可利用掃描式電子顯微鏡、粉末ｘ光繞射和穿透式電子顯微鏡去觀察其結構。此外，多孔性金奈米線在甲醇、甘油以及葡萄糖上都有良好的電催化效果。

In this dissertation, we used electrochemical method to fabricate metal alloy nanostructures without using any template and additive. The contents include (1) electrodeposition of CuSn nanostructures in room temperature 1-ethyl-3-methylimidazolium dicyanamide (EMI-DCA) ionic liquid; (2) electrodeposition of Au nanowires and Au nanoporous wires in Lewis acidic ZnCl2-EMIC ionic liquid.
One-step electrochemical synthesis of free standing hexagonal hollow CuSn tube arrays and hierarchical nanobrushes are achieved in a room temperature 1-ethyl-3-methylimidazolium dicyanamide ionic liquid containing different molar ratio of Cu(I) and Sn(II) at a low current density of -0.4 mA cm-2. Powder x-ray indicated that the hollow tube is referring to Cu10Sn3, and the nanobrush is referring Cu3Sn phase. This study also shows that morphologies of the deposits can be manipulated by the Cu(I)/Sn(II) concentrations in the solution, and thus, offers a method for reproducible preparation of the nanostructures.
Direct template-free electrodeposition of AuZn nanowires were achieved on a tungsten substrate in a quiescent Lewis acidic ZnCl2–EMIC ionic liquid containing HAuCl4‧3H2O at 90℃ by applying an extremely large deposition overpotential. The content of the gold could be tuned by adding different concentration of Au(III) in the electrolyte. The Au nanoporous wires could be obtained by free corrosion in HCl solution and direct electrodeposition in a certain condition. The deposits were characterized by scanning electron microscopy, powder X-ray diffraction and transmission electron microscopy. Moreover, Au nanoporous wire electrodes show the significantly enhanced current for methanol, glycerol and glucose oxidation reactions.

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