Application of Ba1-xPrxCoO3 Cathode Materials in IT-SOFC

Chem. J. Chinese Universities

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Application of Ba_1-xPr_xCoO₃ Cathode Materials in IT-SOFC

WANG Jin-Xia¹ *, YAO Ying¹, XU Da-Peng², SU Wen-Hui²

1. School of Electronic and Information Engeering, Ningbo University of Technology, Ningbo 315016, China;
2. Deparment of Condensed Matter Physics, Jilin University, Changchun 130021, China

Received:2007-03-09 Revised:1900-01-01 Online:2007-11-10 Published:2007-11-10
Contact: WANG Jin-Xia

Abstract

Abstract: Cathode materials Ba_1-xPr_xCoO₃(x=0.3, 0.4, 0.5, 0.6) were prepared with wet chemical method. TG-DTA and sintering curves show that the materials were crystallized in a single perovskite phase at around 950 ℃. The SEM images show that the prohibition of the particle growth and the decrease of the hole ratio were produced when the increase of Pr ions dopant to a certain quantity. The results of the single cell tests show that the fuel cell with the cathodes x=0.5 have the best output performance and the greatest short current density and the maximum output power density, so it has more proper ratio than the other samples and fit Y³⁺-doped BaCeO₃ based solid electrolyte material perfectly.

Key words: IT-SOFC, Cathode, TG-DTA, Sintering Curve

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WANG Jin-Xia¹ *, YAO Ying¹, XU Da-Peng², SU Wen-Hui². Application of Ba_1-xPr_xCoO₃ Cathode Materials in IT-SOFC[J]. Chem. J. Chinese Universities, doi: .

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Application of Ba_1-xPr_xCoO₃ Cathode Materials in IT-SOFC

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