Influence of Dy/Bi dual doping on thermoelectric performance of CaMnO3 ceramics

被引：35

作者：

Zhu, Yuanhu ^{[1
]}

Wang, Chunlei ^{[1
]}

Wang, Hongchao ^{[2
]}

Su, Wenbin ^{[1
]}

Liu, Jian ^{[1
]}

Li, Jichao ^{[1
]}

机构：

[1] Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[2] Yonsei Univ, Sch Mech Engn, Seoul 120749, South Korea

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 144卷 / 03期

关键词：

Ceramics; Sintering; Electrical characterisation; Thermoelectric effects; TEMPERATURE; POWER; DEVICES;

D O I：

10.1016/j.matchemphys.2014.01.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ca1-2xDyxBixMnO3 (x = 0.02, 0.05, 0.08 and 0.10) ceramics have been synthesized by solid state reaction method. Samples with relative densities up to 98% have been obtained. Microstructures have been characterized by XRD and SEM. Thermoelectric properties are evaluated between 300 and 1100 K. Both electrical resistivity and Seebeck coefficient decrease with increasing Dy and Bi content. Thermal conductivity increases with doping, increasing up to x = 0.08. The highest power factor of 420 mu W (K-2 m)(-1) is obtained at x = 0.02, resulting in the highest dimensionless figure of merit (if) of 0.21 at 973 K. This value is four times as much as that of undoped CaMnO3 ceramics. All examples show good self-compatibility with weak temperature dependence. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：385 / 389

页数：5

共 29 条

[1] CaMn1-xNbxO3 (x ≤ 0.08) perovskite-type phases as promising new high-temperature n-type thermoelectric materials [J].

Bocher, L. ;

Aguirre, M. H. ;

Logvinovich, D. ;

Shkabko, A. ;

Robert, R. ;

Trottmann, M. ;

Weidenkaff, A. .

INORGANIC CHEMISTRY, 2008, 47 (18) :8077-8085

[2] CsBi4Te6:: A high-performance thermoelectric material for low-temperature applications [J].

Chung, DY ;

Hogan, T ;

Brazis, P ;

Rocci-Lane, M ;

Kannewurf, C ;

Bastea, M ;

Uher, C ;

Kanatzidis, MG .

SCIENCE, 2000, 287 (5455) :1024-1027

[3] Effect of precursors size on the thermoelectric properties of Ca3Co4O9 ceramics [J].

Delorme, F. ;

Ovono, D. Ovono ;

Marudhachalam, P. ;

Martin, C. Fernandez ;

Fraboulet, O. .

MATERIALS RESEARCH BULLETIN, 2012, 47 (05) :1169-1175

[4] Thermoelectrical properties of A-site substituted Ca1-xRexMnO3 system [J].

Flahaut, D. ;

Mihara, T. ;

Funahashi, R. ;

Nabeshima, N. ;

Lee, K. ;

Ohta, H. ;

Koumoto, K. .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (08)

[5]

Flahaut D, 2006, ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, P103

[6] Ca2.7Bi0.3Co4O9/La0.9Bi0.1NiO3 thermoelectric devices with high output power density [J].

Funahashi, R ;

Urata, S ;

Mizuno, K ;

Kouuchi, T ;

Mikami, M .

APPLIED PHYSICS LETTERS, 2004, 85 (06) :1036-1038

[7] High temperature thermoelectric properties and energy transfer devices of Ca3Co4-xAgxO9 and Ca1-ySmyMnO3 [J].

Han, Ling ;

Jiang, Yang ;

Li, Shanying ;

Su, Huangming ;

Lan, Xinzheng ;

Qin, Kaixuan ;

Han, Tingting ;

Zhong, Honghai ;

Chen, Lei ;

Yu, Dabin .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (36) :8970-8977

[8] Thermoelectric Properties of Polycrystalline Ca0.9Yb0.1MnO3 Prepared from Nanopowder Obtained by Gas-Phase Reaction and Its Application to Thermoelectric Power Devices [J].

Kosuga, Atsuko ;

Wang, Yifeng ;

Yubuta, Kunio ;

Koumoto, Kunihito ;

Funahashi, Ryoji .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2010, 49 (07) :0711011-0711017

[9] High temperature thermoelectric properties of oxide Ca9Co12O28 [J].

Li, SW ;

Funahashi, R ;

Matsubara, I ;

Ueno, K ;

Yamada, H .

JOURNAL OF MATERIALS CHEMISTRY, 1999, 9 (08) :1659-1660

[10] Fabrication of nanotubules of thermoelectric γ-Na0.7CoO2 using porous aluminum oxide membrane as supporting template [J].

Liu, Chia-Jyi ;

Chen, Shu-Yo ;

Shih, Long-Jiann ;

Huang, Hsueh-Jung .

MATERIALS CHEMISTRY AND PHYSICS, 2010, 119 (03) :424-427

← 1 2 3 →