Development of Perovskite-type Cobaltates and Manganates for Thermoelectric Oxide Modules |
A. Weidenkaff, M.H. Aguirre, L. Bocher, M. Trottmann, P. Tomes, R. Robert |
Empa - Swiss Federal Laboratories for Materials Testing and Research Ueberlandstr. |
|
|
|
ABSTRACT |
Ceramics with perovskite-type structure are interesting functional materials for several energy conversion processes due to their flexible structure and a variety of properties. Prominent examples are electrode materials in fuel cells and batteries, thermoelectric converters, piezoelectrics, and photocatalysts. The very attractive physical-chemical properties of perovskite-type phases can be modified in a controlled way by changing the composition and crystallographic structure in tailor-made soft chemistry synthesis processes. Improved thermoelectric materials such as cobaltates with p-type conductivity and n-type manganates are developed by following theoretical predictions and tested to be applied in oxidic thermoelectric converters. |
Key words:
Thermoelectricity, Perovskite, Complex oxides |
|
|
|