Effect of microstructure on ionic conduction of Composite Electrolytes consisting of doped ceria and carbonates

K. Z. Fung, C. T. Ni, S. Y. Tsai, J. Y. Tang

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

Composite Electrolytes consisting of oxygen ion conductors and carbonates have received great attention for fuel cell application. The enhanced conduction was observed due to coionic(O=/H+) conduction during fuel cell operation under the H2/air atmosphere. It is believed that highly mobile ions at the interface between doped ceria and carbonates may contribute to the high conductivity of the composite electrolyte. Thus, the electrical conduction of composite electrolytes with various types of microstructures was evaluated at temperatures ranging from 300 °C to 700 °C. For powder mixture, the composite samples were prepared by direct mixing of doped ceria and carbonate powders. For infiltrated composite, the carbonates were infiltrated into porous ceria substrates at 600°C. SEM, XRD, and Electrochemical Impedance Spectroscopy were employed to conduct microstructural, structural and impedance analyses. The electrical conduction behavior of composite electrolytes will be rationalized based on the pore size, pore distribution and interface area.

原文English
主出版物標題ECS Transactions
編輯T. Kawada, S. C. Singhal
發行者Electrochemical Society Inc.
頁面371-376
頁數6
版本1
ISBN(電子)9781607685395
DOIs
出版狀態Published - 2017 五月 30
事件15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, United States
持續時間: 2017 七月 232017 七月 28

出版系列

名字ECS Transactions
號碼1
78
ISSN(列印)1938-5862
ISSN(電子)1938-6737

Other

Other15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017
國家United States
城市Hollywood
期間17-07-2317-07-28

    指紋

All Science Journal Classification (ASJC) codes

  • Engineering(all)

引用此

Fung, K. Z., Ni, C. T., Tsai, S. Y., & Tang, J. Y. (2017). Effect of microstructure on ionic conduction of Composite Electrolytes consisting of doped ceria and carbonates. 於 T. Kawada, & S. C. Singhal (編輯), ECS Transactions (1 編輯, 頁 371-376). (ECS Transactions; 卷 78, 編號 1). Electrochemical Society Inc.. https://doi.org/10.1149/07801.0371ecst