Thermoelectric Properties of InxFeCo3Sb12 Consisting Mainly of In-Filled p-Type Skutterudites

被引：4

作者：

Kim, Jungmin ^{[1
]}

Kurosaki, Ken ^{[1
,2
]}

Choi, Seongho ^{[1
]}

Ohishi, Yuji ^{[1
]}

Muta, Hiroaki ^{[1
]}

Yamanaka, Shinsuke ^{[1
,3
]}

Takahashi, Misato ^{[4
]}

Tanaka, Junya ^{[4
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

[2] PRESTO, JST, Kawaguchi, Saitama 3320012, Japan

[3] Univ Fukui, Res Inst Nucl Engn, Tsuruga, Fukui 9140055, Japan

[4] Panason Corp, Mfg Technol & Engn Div, Prod Engn Lab, Kadoma, Osaka 5718502, Japan

来源：

MATERIALS TRANSACTIONS | 2017年 / 58卷 / 08期

关键词：

thermoelectric; filled-skutterudite; indium; microstructure; filling fraction limit; THERMAL-CONDUCTIVITY; TRANSPORT-PROPERTIES; BAND-STRUCTURE; PERFORMANCE;

D O I：

10.2320/matertrans.M2017089

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Indium (In)-filled CoSb3 skutterudite is known as a good n-type thermoelectric (TE) material. Its p-type samples have not been intensively studied. In this study, we tried to reduce the electron concentration of (In)-filled CoSb3 by substitute Fe atoms for 1/4 of Co atoms in InxCo4Sb12. Polycrystalline samples were prepared with the nominal compositions of InxFeCo3Sb12 (x = 0.3, 0.5, 0.7, and 0.9) and their constituent phases, microstructure, high-temperature TE properties were carefully investigated. All the samples showed positive sign of Seebeck coefficient as we expected from the nominal compositions. The filling fraction of In in InxFeCo3Sb12, was revealed to extend to the value of x = 0.43. The largest dimensionless figure of merit zT = 0.39 was observed at 705 K for the sample prepared at x = 0.5.

引用

页码：1207 / 1211

页数：5

共 29 条

[1] Correlations between Structural and Electronic Properties in the Filled Skutterudite Smy(FexNi1-x)4Sb12 [J].

Artini, Cristina ;

Zanicchi, Gilda ;

Costa, Giorgio Andrea ;

Carnasciali, Maria Maddalena ;

Fanciulli, Carlo ;

Carlini, Riccardo .

INORGANIC CHEMISTRY, 2016, 55 (05) :2574-2583

[2] Low-temperature transport properties of the filled skutterudites CeFe4-xCoxSb12 [J].

Chen, BX ;

Xu, JH ;

Uher, C ;

Morelli, DT ;

Meisner, GP ;

Fleurial, JP ;

Caillat, T ;

Borshchevsky, A .

PHYSICAL REVIEW B, 1997, 55 (03) :1476-1480

[3] Recent progress of half-Heusler for moderate temperature thermoelectric applications [J].

Chen, Shuo ;

Ren, Zhifeng .

MATERIALS TODAY, 2013, 16 (10) :387-395

[4] Thermoelectric Properties of p-Type Tl-Filled Skutterudites: Tl x Fe1.5Co2.5Sb12 [J].

Choi, Seongho ;

Kurosaki, Ken ;

Yusufu, Aikebaier ;

Ohishi, Yuji ;

Muta, Hiroaki ;

Yamanaka, Shinsuke .

JOURNAL OF ELECTRONIC MATERIALS, 2015, 44 (06) :1743-1749

[5] Crystal structure and high temperature transport properties of Yb-filled p-type skutterudites YbxCo2.5Fe1.5Sb12 [J].

Dong, Yongkwan ;

Puneet, Pooja ;

Tritt, Terry M. ;

Nolas, George S. .

JOURNAL OF SOLID STATE CHEMISTRY, 2014, 209 :1-5

[6] Realizing high figure of merit in heavy-band p-type half-Heusler thermoelectric materials [J].

Fu, Chenguang ;

Bai, Shengqiang ;

Liu, Yintu ;

Tang, Yunshan ;

Chen, Lidong ;

Zhao, Xinbing ;

Zhu, Tiejun .

NATURE COMMUNICATIONS, 2015, 6

[7] Three-dimensional visualization in powder diffraction [J].

Izumi, Fujio ;

Momma, Koichi .

APPLIED CRYSTALLOGRAPHY XX, 2007, 130 :15-20

[8] How thermoelectric properties of p-type Tl-filled skutterudites are improved [J].

Kim, Donghun ;

Kurosaki, Ken ;

Ohishi, Yuji ;

Muta, Hiroaki ;

Yamanaka, Shinsuke .

APL MATERIALS, 2013, 1 (03)

[9] Dense dislocation arrays embedded in grain boundaries for high-performance bulk thermoelectrics [J].

Kim, Sang Il ;

Lee, Kyu Hyoung ;

Mun, Hyeon A. ;

Kim, Hyun Sik ;

Hwang, Sung Woo ;

Roh, Jong Wook ;

Yang, Dae Jin ;

Shin, Weon Ho ;

Li, Xiang Shu ;

Lee, Young Hee ;

Snyder, G. Jeffrey ;

Kim, Sung Wng .

SCIENCE, 2015, 348 (6230) :109-114

[10] Enhancement of thermoelectric efficiency of CoSb3-based skutterudites by double filling with K and TI [J].

Kurosaki, Ken ;

Li, Guanghe ;

Ohishi, Yuji ;

Muta, Hiroaki ;

Yamanaka, Shinsuke .

FRONTIERS IN CHEMISTRY, 2014, 2

← 1 2 3 →