Synthesis and Characterization of One-dimensional Platinum Nanowire Arrays via Template-electrodeposition Method

The arrays of one-dimensional (1D) platinum nanowire are fabricated on the basis of template-electrodeposition by using a mesoporous silica membrane composed of an assembly of 1D nanochannels. The nanowires are characterized by SEM,EDX,XRD,TEM and SAED. The XRD and EDX data confirm that the crystalline platinum are formed in the nanochannels of the mesoporous silica after electrodeposition,and the platinum nanowires are estimated to be 3～4 nm in diameter and tens of micrometers in length by TEM and SEM. The SAED patterns further demonstrate that the as-prepared platinum nanowires are polycrystalline.