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Investigation of the Electroless Deposition Process of Magnetic Nanostructures

机译:磁性纳米结构的化学沉积过程研究

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We have studied electroless deposition of Ni-B within a template structure as a model process to optimize the deposition of nanostructures. Our results show that depending on the deposition rate and deposition time employed end-opened or end-closed nanotubes connected at both ends by a thin film can be prepared. We have found that if the deposition rate is large, then deposition within the nanotubes is mass transport limited. By reducing the deposition rate the reaction becomes kinetically controlled and continuous uniform nanotubes are formed. The deposition rate was controlled by varying the temperature, pH or concentrations of the reactants. Optimal parameters of 20 ℃, a pH of 10 and a concentration of 0.12 M diammonium citrate have been found for the deposition of magnetic nanostructures. Employing the optimised deposition process we have prepared uniform end open nanotubes and characterized their associated magnetic properties.
机译:我们已经研究了模板结构内Ni-B的化学沉积,作为优化纳米结构沉积的模型过程。我们的结果表明,取决于沉积速率和沉积时间,可以制备通过薄膜在两端连接的端开或端闭纳米管。我们已经发现,如果沉积速率大,则纳米管内的沉积受到传质的限制。通过降低沉积速率,反应变得受到动力学控制,并形成连续均匀的纳米管。通过改变温度,pH或反应物的浓度来控制沉积速率。磁性纳米结构沉积的最佳参数为20℃,pH为10,浓度为0.12 M柠檬酸二铵。通过优化沉积工艺,我们制备了均匀的端部开口纳米管,并对其相关的磁性进行了表征。

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  • 会议地点 Cancun(MX)
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    Department of Physics and Energy, University of Limerick, Ireland Materials and Surface Science Institute, University of Limerick, Ireland;

    Department of Physics and Energy, University of Limerick, Ireland Materials and Surface Science Institute, University of Limerick, Ireland;

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