A Method for Increasing the Three-phase Reaction Boundaries in Anode of SOFC

Chem. J. Chinese Universities ›› 2000, Vol. 21 ›› Issue (6): 947.

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A Method for Increasing the Three-phase Reaction Boundaries in Anode of SOFC

HUANG Xi-Qiang¹, LU Zhe¹, LIU Wei¹, LIU Zhi-Guo¹, PEI Li-HE Tian-Min¹, LIU Jiang¹, SU Wen-Hui¹

1. Groupof Rare Earth Solid State Physics, Jilin University, Changchun 130023, China;
2. Key Lab.for Inorganic Synthesisand Preparative Chemistryof Educational Ministry, Departmentof Chemistry, Jinlin University, Changchun 130023, China;
3. International Centerf or Materials Physics, Academia Sinica, Shenyang 110015, China

Received:1999-01-17 Online:2000-06-24 Published:2000-06-24

Abstract

Abstract: Anew method for increasing the three-phase boundaries in anode of SOFCis reported. The results of the study show that the three-phase boundaries in the SOFCanode Ni+YSZare greatly increased by doping Ce_0.9Ca_0.1O_2-δ particles , and the transportation of oxygen ion in the anode is improved as well. By adding Ce_0.9Ca_0.1O_2-δ particles, the composite anode is produced and the anode reaction is accelerated, resulting in an improvement of SOFCoutput properties. The highest power density of SOFCwith the anode of Ni+YSZdoped by Ce_0.9Ca_0.1O_2-δ particles in a weight ratio of 15%, which is about 3 times higher than that of SOFCwith the anode Ni+YSZwithouT_doping, is obtained.

Key words: SOFC, Anode, Ce_0.9 Ca_0.1 O_2-δ particles, Three phase boundary

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HUANG Xi-Qiang, LU Zhe, LIU Wei, LIU Zhi-Guo, PEI Li-HE Tian-Min, LIU Jiang, SU Wen-Hui. A Method for Increasing the Three-phase Reaction Boundaries in Anode of SOFC[J]. Chem. J. Chinese Universities, 2000, 21(6): 947.

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A Method for Increasing the Three-phase Reaction Boundaries in Anode of SOFC

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