High Pressure Synthesis of p-Type CeyFe4−xCoxSb12 Skutterudites
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China
Author to whom correspondence should be addressed.
Academic Editor: Christof Schneider
Received: 18 February 2016 / Revised: 17 March 2016 / Accepted: 28 March 2016 / Published: 31 March 2016
Co-substituted p-Type CeFe4−x
skutterudites were successfully synthesized with a high pressure synthesis method. The structure, composition, and thermoelectric properties were investigated. The obtained Cey
samples show the skutterudite structure of
symmetry. The hole concentration decreases with elevating Co substitution level, leading to increased Seebeck coefficient and electrical resistivity. Meanwhile, the filling fraction of Ce decreases, which is unfavorable for reducing the lattice thermal conductivity. As a result, the thermoelectric performance of Cey
deteriorates with higher Co content. The maximal ZT of 0.91 was achieved at 763 K for the optimal Ce0.92
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MDPI and ACS Style
Liu, Y.; Li, X.; Zhang, Q.; Zhang, L.; Yu, D.; Xu, B.; Tian, Y. High Pressure Synthesis of p-Type CeyFe4−xCoxSb12 Skutterudites. Materials 2016, 9, 257.
Liu Y, Li X, Zhang Q, Zhang L, Yu D, Xu B, Tian Y. High Pressure Synthesis of p-Type CeyFe4−xCoxSb12 Skutterudites. Materials. 2016; 9(4):257.
Liu, Yadi; Li, Xiaohui; Zhang, Qian; Zhang, Long; Yu, Dongli; Xu, Bo; Tian, Yongjun. 2016. "High Pressure Synthesis of p-Type CeyFe4−xCoxSb12 Skutterudites." Materials 9, no. 4: 257.
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