New chemical process for the preparation of fine powders and thin films of LSMx-YSZ composite oxides

被引：15

作者：

Gaudon, M ^{[1
]}

Laberty-Robert, C ^{[1
]}

Ansart, E ^{[1
]}

Stevens, P ^{[1
]}

Rousset, A ^{[1
]}

机构：

[1] Univ Toulouse 3, UMR5085, LCMIE, CIRIMAT, F-31062 Toulouse 04, France

来源：

SOLID STATE SCIENCES | 2003年 / 5卷 / 10期

关键词：

polymeric solutions; thin films; composite oxides; LSMx-YSZ;

D O I：

10.1016/S1293-2558(03)00181-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Composite cathodes of La1-xSrxMnO3-yttria stabilized zirconia with various molar concentrations were deposited onto dense YSZ electrolytes by dip-coating technique. The dip-coated solution is original and is based on polymeric solution. Different ways were examined to prepare it. Pure composites are only obtained when the final polymeric solution is an emulsion between two intermediate polymeric solutions: in one solution, La-Sr-Mn cations are present while the other one contains Y-Zr cations. The cathode characteristics were then examined by scanning electron microscopy (SEM). Crack-free and homogeneous films are obtained. The porosity and the thickness of the film are a function of the molar ratio of YSZ in the composite film. Films with a porosity of about 30% are synthesized. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.

引用

页码：1377 / 1383

页数：7

共 37 条

[1] REVIEW OF P-TYPE DOPED PEROVSKITE MATERIALS FOR SOFC AND OTHER APPLICATIONS [J].