Te-Bi core-shell nanowires were synthesized by electrochemical deposition in ionic liquids without using a template. The nanowires were synthesized in two steps: self-standing single crystal Te nanowires with a diameter of 76.2 ± 28.4 nm and a length of a few microns were electrodeposited first, taking advantage of the templating properties of the mixture of ionic liquids EOPipTFSI:EOPipBr 95:5 mole%. The Bi shell was then deposited on the Te core in EOPipTFSI. The influence of various experimental parameters on Bi shell deposition was studied. Thanks to the higher viscosity of the electrolyte compared to an aqueous medium, a lower growth rate is observed, leading to a thin layer of bismuth. In addition, High Resolution Transmission Electronic Microscopy shows that under optimal conditions the Te nanowires are entirely covered by a homogeneous, compact and polycrystalline Bi shell and that the core/shell interface is smooth.

通过在离子液体中电化学沉积而不使用模板来合成Te-Bi核壳纳米线。纳米线分两步合成：利用离子液体EOPipTFSI：EOPipBr 95的模板性质，首先电沉积直径为76.2±28.4 nm，长度为几微米的自立式单晶Te纳米线。 ：5摩尔％。然后将Bi壳沉积在EOPipTFSI中的Te核上。研究了各种实验参数对铋壳沉积的影响。由于电解质的粘度比水性介质高，因此观察到较低的生长速率，导致铋薄层。此外，高分辨率透射电子显微镜显示，在最佳条件下，Te纳米线完全被均匀的，