用电化学法制备了高度有序的多孔阳极氧化铝模板, 选用CoSO4和CuSO4的混合溶液为电解液,用交流电化学沉积法在多孔阳极氧化铝的柱形微孔内制备铜钴合金纳米线有序阵列。分别用扫描电镜(SEM),X 射线衍射仪(XRD)对多孔氧化铝模板和纳米线阵列的微观形貌和结构进行分析。结果显示,制备的合金纳米线表面光滑、均匀,纳米线中的晶粒在长过程中有(111) 晶面的择优取向。用UV3101分光光度计测试了铜钴合金多孔铝复合结构的透射光谱及偏振光谱表明,合金纳米复合结构在可见及近红外波段具有良好的透射比和消光比; 铜钴合金纳米复合结构的确能够改善单一金属的特性, 比如在近红外光区, 其消光比(30 dB)优于铜纳米复合结构(17 dB)。

Highly ordered porous anodic aluminum oxide (PAA) membranes were prepared by electrochemical method. By alternating current electrodepositing, Cu-Co alloy nanowire arrays were fabricated in the micro column-shaped holes of porous alumina template in a mixed electrolyte of CuSO4 and CoSO4. The morphology and microstructures of PAA and nanowire arrays were characterized by XRD and SEM. The results show that the surface of Cu-Co nanowire arrays is uniform and regular with a preferred crystal face (111) during growing. And the transmission and polarization spectrum indicate that the sample has good transmittance and extinction ratio. Cu-Co alloy can change some characteristics of the simple metal, and for example, CuCo/PAA has better extinction ratio (30 dB) in near infrared waveband than Cu/Al2O3 (17 dB).