微波法合成一维结构Cd(OH)_2螺旋形纳米线

Facile Microwave Heating Approach to Spiral Cd(OH)_2 Nanowires with 1D Nanostructure

通过微波辐照法一步合成了长1～3μm,直径30～100nm的螺旋形纳米线,实验结果表明它是由更细的纳米线组装成束的.通过改变反应物浓度可以调控螺旋纳米线的直径和长度,不同的镉盐对产物的结构与形貌有较大的影响.讨论了螺旋形纳米线可能的形成机理.

We demonstrate a new strategy for the growth of spiral Cd （OH） 2 with 1D nanostructure, yielding an average length of 1--3μm and width up to 30--100 nm, in one-step process v/a microwave heating approach. The individual spiral nanowire is made of several smaller nanorods that are aggregated into a bundle. The size of diameter and length of the spiral nanowires are readily tunable by modifying the concentrations of the reactants. Different cadmium salts have more influence on the structure and morphology of the obtained products. The formation mechanism of the spiral Cd （OH） 2 nanowires was discussed. This method may offer an elegant route for the direct growth of metal hydroxide nanowires with potential implications for attachment to electrodes for novel functional devices.