Conductivity study of porous yttria-doped zirconia and strontia-doped lanthanum manganite bilayer film by glancing angle deposition

Ming Hsiu Wu, Jow Lay Huang, Kuan Zong Fung, Ding Fwu Lii

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

Porous bilayer films of yttria-doped zirconia and strontia-doped lanthanum manganite are deposited by using electron beam evaporation. For practical use in solid oxide fuel cells, fully-stabilized zirconia is a candidate for the solid electrolyte due to its high oxygen diffusion rate. Longer triple phase boundary, which consists of catalyst, reacting gas and solid electrolyte in the cathode, is helpful for the exchange of oxygen gas and ions. By glancing angle deposition, higher density of triple phase boundary is achieved in the form of catalyst and electrolyte bilayer structure. This kind of triple phase boundary can be estimated from SEM images and it is rather easier than from conventional composite cathode which can only be analyzed with assistance of mathematic simulation. The resistance of this bilayer at 600 °C is ten times lower than porous catalyst single layer.

原文English
頁(從 - 到)30-34
頁數5
期刊Surface and Coatings Technology
205
發行號1
DOIs
出版狀態Published - 2010 9月

All Science Journal Classification (ASJC) codes

  • 一般化學
  • 凝聚態物理學
  • 表面和介面
  • 表面、塗料和薄膜
  • 材料化學

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