Preparation And Characterization Of Bay0.2ce0.7zr0.1o3-Delta Ceramic Powder By Glycine Nitrate Combustion (Gnc) Process For Proton-Conducting Solid Oxide Fuel Cell

Wei-Xin Kao,Tai-Nan Lin,Ming-Wei Liao,Hong-Yi Kuo,Chun-Yen Yeh,Yu-Ming Chen,Ruey-Yi Lee

PROCEEDINGS OF THE 42ND INTERNATIONAL CONFERENCE ON ADVANCED CERAMICS AND COMPOSITES: CERAMIC ENGINEERING AND SCIENCE PROCEEDINGS, VOL 39, ISSUE 2（2019）

Inst Nucl Energy Res

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Abstract

BaY0.2Ce0.7Zr0.1O3-delta (BYCZ) is a promising candidate as electrolyte for a proton-conducting SOFC (P-SOFC). In this work, the ceramic powder of BYCZ was fabricated by using glycine nitrate combustion (GNC) process. Characterizations of the powders were executed by X-ray diffractometer (XRD), field-emission scanning electron microscopy (FE-SEM), thermal expansion coefficients (TECs) measurement as well as the surface area analyses by Brunauer-Emmett-Teller (BET) method. The results reveal that the single phase of perovskite structure of BYCZ powder occurs at calcination temperature of 1550 degrees C and the average value of the thermal expansion coefficient (TEC) is 12.6 x 10(-6) K-1 at the temperature range of room temperature to 700 degrees C. In addition, the relative density of BYCZ powder can be achieved near 100 % at 1550 degrees C. The result indicates that the crystal phase of BYCZ is cubic perovskite structure at the calcination temperature of 1550 degrees C. Further application on the BYCZ-based P-SOFC cell performance evaluation will be conducted.

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