Abstract
A nano-engineering approach has been developed for the synthesis of the thermoelectric composite materials. A possible way for enhancing ZT is to incorporate thermoelectric materials, e.g. Skutterudite, into the nano-sized pores of three-dimensional periodic arrays. The present study reports the development of a method for making a Nano-Engineered Thermoelectric (NETE) coating on silica particles. The coated particles are assembled into three-dimension array of opals to form NETE composite. The process consists of coating silica particles with gold and then with thermoelectric material. Gold coating has the advantage that post-coating assembly provides a continuous network of Skutterudite-filled gaps between gold interconnects. The second coating was carried out by chemical co-precipitation of Co and Sb precursors from a solid solution onto the surfaces of the gold-coated particles under controlled conditions. Through further heat-treatments (calcination, reduction and alloying), a Skutterudite layer has been formed in high purity. Both the gold-and gold/Skutterudite-coated particles retain the morphology of the original silica particles. In this paper, the processing conditions and materials characterizations are reported and discussed
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Toprak, M., Zhang, Y., Muhammed, M., Zakhidov, A.A., Baughman, R.H., Khayrullin, I. (2000). Nano-Engineered Thermoelectric Coating. In: Chow, GM., Ovid’ko, I.A., Tsakalakos, T. (eds) Nanostructured Films and Coatings. NATO Science Series, vol 78. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4052-2_12
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DOI: https://doi.org/10.1007/978-94-011-4052-2_12
Publisher Name: Springer, Dordrecht
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