arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1308.0366cond-mat.mtrl-sci
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仿生方法制备金属纳米结构介观模型

Biomimetic method for metallic nanostructured mesoscopic models fabrication

Gennady Strukov, Galina Strukova

摘要:

在多孔膜中通过脉冲电流电镀生长纳米线时,产生了各种形状复杂的金属结构,类似于植物、蘑菇和贝壳等自然物体。如果在纳米线到达膜表面后继续电镀,则这些结构作为纳米线自组装(仿生学)的结果而发生。通过改变膜的几何形状和脉冲电流参数,以及从具有不同电解质的两个浴中交替电镀,制造了各种模型,包括壁厚为10-30 nm的中空容器。论证了模型形状调控的可能性:在一定条件下,得到了蘑菇状和贝壳状的同类凸凹模型。模型在纳米、微米和介观层次上的层次结构通过碎片化和化学蚀刻显示出来。

英文摘要:

Various metallic structures of complex shape, resembling natural objects such as plants, mushrooms, and seashells, were produced when growing nanowires by means of pulsed current electroplating in porous membranes. These structures occur as the result of nanowires self-assembling (biomimetics) if the electroplating is continued after the nanowires reach the membrane surface. By varying the membrane geometry and the pulsed current parameters, and alternating electroplating from two baths with different electrolytes, various models were fabricated, including a hollow container with wall thickness of 10-30 nm. The possibility of shape regulation for models was demonstrated: in certain conditions, mushroom- and shell-like convex-concave models of the same kind were obtained. The hierarchical structure of models at the nano-, micro- and mesoscopic levels is shown through fragmentation and chemical etching.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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