Achieving high thermoelectric performance of Ni/Cu modified Bi0.5Sb1.5Te3 composites by a facile electroless plating
Article
Article Title | Achieving high thermoelectric performance of Ni/Cu modified Bi0.5Sb1.5Te3 composites by a facile electroless plating |
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ERA Journal ID | 213639 |
Article Category | Article |
Authors | Huang, Zhong-Yue (Author), Zhang, He (Author), Yang, Lei (Author), Zhu, Bin (Author), Zheng, Kun (Author), Hong, Min (Author), Yu, Yuan (Author), Zu, Fang-Qiu (Author), Zou, Jin (Author) and Chen, Zhi-Gang (Author) |
Journal Title | Materials Today Energy |
Journal Citation | 9, pp. 383-390 |
Number of Pages | 8 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 2468-6069 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.mtener.2018.06.011 |
Abstract | Thermoelectric materials have drawn great attention due to their ability to convert heat directly into electricity and vice versa. However, practical applications of thermoelectric materials have been limited by their high cost, low efficiency, and poor mechanical property. To address this issue, we fabricate NiCu/Bi0.5Sb1.5Te3 thermoelectric composites via a facile electroless plating method and spark plasma sintering, which successfully achieve an enhanced peak figure of merit, zT, of similar to 1.16 at 425 K for 0.3 wt.% Ni-0.15 wt.% Cu/Bi0.5Sb1.5Te3 composites with high average zT of 0.95 in the wide temperature range between 300 and 527 K. Through detailed structural characterization, we found that the plated Cu can be doped into BST matrix and partial Cu/Ni can react with the matrix to form nanoinclusions, which can decouple the interdependent electrical and thermal transport properties, enabling us to achieve synergistic enhancement of zT. This study provides a cheap, simple, fast and effective way to improve the thermoelectric of Bi2Te3-based alloys for high-performance thermoelectric power harvesting and refrigeration. |
Keywords | thermoelectric materials; bismuth telluride; high performance; average zT; electroless plating; frequency phonon scatterings; transport-properties; bulk alloys; thermal-conductivity; carrier scattering; bismuth telluride; nanoparticles; nanocomposites; bi2te3; enhancement |
ANZSRC Field of Research 2020 | 340210. Solid state chemistry |
401807. Nanomaterials | |
401605. Functional materials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hefei University of Technology, China |
Sichuan University, China | |
Beijing University of Technology, China | |
Centre for Future Materials | |
University of Queensland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q505w/achieving-high-thermoelectric-performance-of-ni-cu-modified-bi0-5sb1-5te3-composites-by-a-facile-electroless-plating
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