本篇論文探討在40-60mol%氯化鋅-氯化-1-乙基-3-甲基咪唑(zinc chloride-1-ethyl-3-methylimidazolium chloride,ZnCl2-EMIC)離子液體中添加氯化亞鈷(Cobalt(II) chloride)的電化學行為，並分別利用定電位、脈衝電位、定電流與脈衝電流電沉積鋅鈷合金。在定電位沉積所得的鍍層會依沉積電位、添加的氯化亞鈷濃度影響鍍層中鋅與鈷的相對比例，而電鍍時溫度的不同則產生不同形貌，溫度由70oC提高至90oC時會由線狀結構轉變為顆粒狀結構。脈衝電位沉積方面，利用脈衝電位電沉積成功地製備出具有節線形貌的線狀結構，並藉由調控兩脈衝電位EN、EP與其停留時間控制節點大小及節點與節點之間的距離，所製備出的節線結構以掃描式電子顯微鏡(SEM)觀察鍍層表面形貌、穿透式電子顯微鏡(TEM)觀察其內部結構、EDX-Mapping與Line-scan分析鍍層中鈷鋅分佈、化學分析電子光譜儀(XPS)探討其化學組成，並以超導量子干涉儀(VSM)探討磁滯曲線的變化。定電流沉積方面出現電位震盪的現象且由SEM觀察鍍層中的線狀結構具有一節一節的特徵，另外利用脈衝電流電沉積探討其形貌變化並與脈衝電位電沉積法比較。

In this study, the electrochemical behaviors of CoCl2 were investigated by cyclic voltammetry in 40-60 mol% ZnCl2-EMIC ionic liquid and Co-Zn alloys were electrodeposited by pulse potential electrodeposition. For pulse potential electrodeposition, Diameter-modulated Co-Zn wires consisting of beads which are linked by stems can be prepared from a 40–60 mol% ZnCl2-EMIC ionic liquid containing 5.0 mol% CoCl2 at 70◦C without the use of a template. The effects of pulse potential and pulse duration on the physical dimensions of the Co-Zn wires such as the diameters of the stem and bead as well as the spacing between the beads were investigated by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM). Also, element distribution in the deposits were investigated by EDX-Mapping and Line-scan. It is concluded that the sizes of the segmented Co-Zn wires can be tuned by changing the pulse potentials and durations.

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