Paper Title:
Fabrication of an Intermediate-Temperature Anode-Supported Planar SOFC Via Tape Casting and Lamination
  Abstract

Many physical and chemical problems in solid oxide fuel cells (SOFC) are induced by the operating temperature of approximately 800 ~ 1000°C. The focus of the research in SOFC’s is, thus, on running the systems at the intermediate operating temperature range below 800 °C. A way to achieve this includes changing the electrolyte material in order to get a good ionic conductivity in the intermediate temperature range below 800 °C. In this work, gadolinium doped ceria is selected as the electrolyte, which was mixed with NiO for the anode material, and tape cast and laminated to produce a novel graded IT-SOFC . The cross-section of the SOFC cell was observed using Scanning Electron Microscope (SEM) showing a dense electrolyte layer. The operating temperature to test the cell was 500 and 550 °C. The electrochemical properties of the cell were measured using impedance spectroscopy. The ASR of unit cells was found to be between 2.67 and 4.62 Ω∙cm2. The electrochemical performance is discussed under the effect of porosity gradients at 500 and 550 °C.

  Info
Periodical
Edited by
Pietro VINCENZINI, Cynthia POWELL, Marco VITTORI ANTISARI, Vincenzo ANTONUCCI and Fausto CROCE
Pages
237-242
DOI
10.4028/www.scientific.net/AST.72.237
Citation
C. M. An, Y. W. Sin, J. Yoon, N. Sammes, "Fabrication of an Intermediate-Temperature Anode-Supported Planar SOFC Via Tape Casting and Lamination", Advances in Science and Technology, Vol. 72, pp. 237-242, 2010
Online since
October 2010
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$32.00
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