Preparation and thermoelectric properties of highly oriented calcium cobalt oxides by solution combustion synthesis with post-spark plasma sintering

被引：0

作者：

Zhang, Lihua ^{[1
]}

Okinaka, Noriyuki ^{[2
]}

Tosho, Tsuyoshi ^{[3
]}

Akiyama, Tomohiro ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

[2] Hokkaido Univ, Ctr Adv Res Energy Convers Mat, Sapporo, Hokkaido 0608628, Japan

[3] Thermoelect Device Dev Inc, Noboribetsu 0590003, Japan

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2012年 / 14卷 / 1-2期

关键词：

Thermoelectric properties; Solution combustion synthesis; Spark plasma sintering; Orientation degree; CA3CO4O9;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, layered cobalt oxides of Ca3Co4O9 and Bi-doped Ca3Co4O9 were synthesized by solution combustion synthesis with post-spark plasma sintering method, and the thermoelectric properties of the synthesized materials were analyzed from different directions. The synthesized bulk samples showed a relatively high orientation degree analyzed by XRD degree, and the Lotgering factor of Ca3Co4O9 and Bi-doped Ca3Co4O9 is 0.70 and 0.91 respectively. Thermoelectric properties measured from different directions show that the power factor and ZT value measured perpendicular to the press direction are relatively higher and the highest ZT value 0.11 was obtained by Bi-doped Ca3Co4O9 at 857 K.

引用

页码：67 / 71

页数：5

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