ICT2014 Abstracts

 In this work, three different types of Bi_1-xSb_x - nanoalloys were synthesized and their thermoelectric transport parameters were analysed comparatively. First, we focussed on the synthesis of bismuth nanotubes (BiNTs), their inclusion in Bi_1-xSb_x - nanoalloys and the thermoelectric characterization of the alloy - nanotubes composites. The bismuth nanotubes were synthetized by a transformation of a β - BiI precursor with n - BuLi solution into tubular bismuth structures. In a second type of composites carbon nanotubes (CNTs) were included in Bi_1-xSb_x - nanoalloys and underwent thermoelectric characterization. As in the first case, the corresponding Bi_1-xSb_x - nanoalloys, acting as a matrix material, were produced by ball milling. In both alloys different quantities of nanotubes were included, resulting in three series: as alloys series without inclusions and two series with BiNT contents of 3 and 5 wt.% and CNT contents of 0.3 and 0.5 wt.%. By comparing the resulting thermoelectric properties some conclusions and trends of the influence of the inclisions become obvious.