Morphology of platinum nanowire array electrodeposited within anodic aluminium o

2020-01-16 16:37:46

nanowires oxide aluminium platinum microscopy

责任者: Kong Ling-Bin;Lu Mei;Li Meng-Ke;Guo Xin-Yong;Li Hu-Lin 单位: Coll. of Chem. & Chem. Eng., Lanzhou Univ., China 来源出处: Chinese Physics Letters(Chin. Phys. Lett. (China)),2003/05/,20(5):763-6 摘要: Uniform platinum nanowires were synthesized by electrodepositing the platinum under a very low altering current frequency (20 Hz) and increasing voltage (5-15 V) in the pores of anodic aluminium oxide (AAO) template. Atomic force microscopy observation indicates that the template membranes we obtained have hexagonally close-packed nanochannels. The platinum nanowires have highly ordered arrays after partially dissolving the aluminium oxide membrane. With the increasing dissolving time, the platinum nanowire array collapsed. A concave topography of the aluminium substrate was observed after the aluminium oxide membrane was dissolved completely and the platinum nanowires were released from the template. Platinum nanowires were also characterized by transmission electron microscopy and the phase structure of the Al/AAO/Pt composite was proven by x-ray diffraction 关键词: atomic force microscopy;crystal morphology;electrodeposits;nanowires;platinum;transmission electron microscopy;X-ray diffraction;Pt nanowire array;morphology;electrodeposited;anodic aluminium oxide template;atomic force microscopy;increasing dissolving time;concave topography;transmission electron microscopy;phase structure;x-ray diffraction;Al/AAO/Pt composite;20 Hz;5 to 15 V;Al-AlOx-Pt