High Pressure Synthesis of p-Type Ce(y)Fe(4−x)Co(x)Sb(12) Skutterudites

Co-substituted p-Type CeFe(4−x)Co(x)Sb(12) skutterudites were successfully synthesized with a high pressure synthesis method. The structure, composition, and thermoelectric properties were investigated. The obtained Ce(y)Fe(4−x)Co(x)Sb(12) samples show the skutterudite structure of [Formula: see tex...

Descripción completa

Detalles Bibliográficos
Autores principales: Liu, Yadi, Li, Xiaohui, Zhang, Qian, Zhang, Long, Yu, Dongli, Xu, Bo, Tian, Yongjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5502921/
https://www.ncbi.nlm.nih.gov/pubmed/28773381
http://dx.doi.org/10.3390/ma9040257
_version_ 1783249005753401344
author Liu, Yadi
Li, Xiaohui
Zhang, Qian
Zhang, Long
Yu, Dongli
Xu, Bo
Tian, Yongjun
author_facet Liu, Yadi
Li, Xiaohui
Zhang, Qian
Zhang, Long
Yu, Dongli
Xu, Bo
Tian, Yongjun
author_sort Liu, Yadi
collection PubMed
description Co-substituted p-Type CeFe(4−x)Co(x)Sb(12) skutterudites were successfully synthesized with a high pressure synthesis method. The structure, composition, and thermoelectric properties were investigated. The obtained Ce(y)Fe(4−x)Co(x)Sb(12) samples show the skutterudite structure of [Formula: see text] 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 Ce(y)Fe(4−x)Co(x)Sb(12) deteriorates with higher Co content. The maximal ZT of 0.91 was achieved at 763 K for the optimal Ce(0.92)Fe(4)Sb(12) sample.
format Online
Article
Text
id pubmed-5502921
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-55029212017-07-28 High Pressure Synthesis of p-Type Ce(y)Fe(4−x)Co(x)Sb(12) Skutterudites Liu, Yadi Li, Xiaohui Zhang, Qian Zhang, Long Yu, Dongli Xu, Bo Tian, Yongjun Materials (Basel) Article Co-substituted p-Type CeFe(4−x)Co(x)Sb(12) skutterudites were successfully synthesized with a high pressure synthesis method. The structure, composition, and thermoelectric properties were investigated. The obtained Ce(y)Fe(4−x)Co(x)Sb(12) samples show the skutterudite structure of [Formula: see text] 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 Ce(y)Fe(4−x)Co(x)Sb(12) deteriorates with higher Co content. The maximal ZT of 0.91 was achieved at 763 K for the optimal Ce(0.92)Fe(4)Sb(12) sample. MDPI 2016-03-31 /pmc/articles/PMC5502921/ /pubmed/28773381 http://dx.doi.org/10.3390/ma9040257 Text en © 2016 by the authors; Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Yadi
Li, Xiaohui
Zhang, Qian
Zhang, Long
Yu, Dongli
Xu, Bo
Tian, Yongjun
High Pressure Synthesis of p-Type Ce(y)Fe(4−x)Co(x)Sb(12) Skutterudites
title High Pressure Synthesis of p-Type Ce(y)Fe(4−x)Co(x)Sb(12) Skutterudites
title_full High Pressure Synthesis of p-Type Ce(y)Fe(4−x)Co(x)Sb(12) Skutterudites
title_fullStr High Pressure Synthesis of p-Type Ce(y)Fe(4−x)Co(x)Sb(12) Skutterudites
title_full_unstemmed High Pressure Synthesis of p-Type Ce(y)Fe(4−x)Co(x)Sb(12) Skutterudites
title_short High Pressure Synthesis of p-Type Ce(y)Fe(4−x)Co(x)Sb(12) Skutterudites
title_sort high pressure synthesis of p-type ce(y)fe(4−x)co(x)sb(12) skutterudites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5502921/
https://www.ncbi.nlm.nih.gov/pubmed/28773381
http://dx.doi.org/10.3390/ma9040257
work_keys_str_mv AT liuyadi highpressuresynthesisofptypeceyfe4xcoxsb12skutterudites
AT lixiaohui highpressuresynthesisofptypeceyfe4xcoxsb12skutterudites
AT zhangqian highpressuresynthesisofptypeceyfe4xcoxsb12skutterudites
AT zhanglong highpressuresynthesisofptypeceyfe4xcoxsb12skutterudites
AT yudongli highpressuresynthesisofptypeceyfe4xcoxsb12skutterudites
AT xubo highpressuresynthesisofptypeceyfe4xcoxsb12skutterudites
AT tianyongjun highpressuresynthesisofptypeceyfe4xcoxsb12skutterudites

Ejemplares similares