稀土学报(英文版)
稀土學報(英文版)
희토학보(영문판)
JOURNAL OF RARE EARTHS
2004年
1期
165-167
,共3页
车平%张艳%薄其兵%冯静%王静平%孟健
車平%張豔%薄其兵%馮靜%王靜平%孟健
차평%장염%박기병%풍정%왕정평%맹건
inorganic chemistry%thermoelectric property%layered cobaltite%Seebeck coefficient%Ca2.6Nd0.4Co4O9 compound%rare earths
The layered cobaltite Ca2.6Nd0.4Co4O9 was synthesized by the solid-state reaction. Their crystal structure was determined by the X-ray powder diffraction and CELL program. The prepared Ca2.6Nd0.4Co4O9 compound has the monoclinic symmetry. The electrical conductivity and Seebeck coefficient were measured from room temperature to 700 ℃ in air. Both the properties increase while rising temperature. The thermoelectric power of Ca2.6Nd0.4Co4O9 is about 242.4 μV·K-1. The results imply a promising way to enhance the thermoelectric properties of the layered cobaltite oxides by optimizing their composition and microstructure.
