Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (5): 932.

• Articles • Previous Articles     Next Articles

Preparation of YSZ Electrolyte Membrane Tube by Vacuum Casting and Its Application to Solid Oxide Fuel Cells

HE Tian-Min1, LU Zhe2, LIU Han-Jun1, YANG Jing-Dong1, PEI Li2, LIU Wei1, HUANG Xi-Qiang2, LIU Zhi-Guo1, LIU Jiang1, SU Wen-Hui1,2,3   

  1. 1. College of Physics and State Key Lab for Inorganic Synthesis and Preparative Chemistry, Jilin University. Changchun 130023, China;
    2. School of Science. Harbin Institute of Technology, Harbin 150001, China;
    3. International Center for Materials Physics, Chinese Academia Sinica, Shenyang 110015, China
  • Received:2000-07-04 Online:2002-05-24 Published:2002-05-24

Abstract: The dense yittria-stabilized zirconia membrane tube was prepared by using pyridine as dispersant by vacuum casting.The thickness of the membrane in the tube is 0.2 mm and the length is 140 mm.The effect of sintering temperature on the density and ionic conductivity of the samples was studied.The solid oxide fuel cell(SOFC) was made of the YSZmembrane tube, which was sintered at 1650 for 2 h.The electrochemical property of the SOFCwas studied from 500 to 900,hydrogen and city coal gas were used as fuel, respectively.The research shows that the YSZmembrane tube with a high quality and density can be prepared by the vacuum casting, the relative density of the YSZmembrane tube reaches 98.1% of theoretical density at sintering temperature of 1600,approaching the theoretical density.The maximum of open voltage is 1.213 V, and the maximum of output power is 0.48 W.The electrical property of the SOFCwith hydrogen as fuel is superior to that of the one with city coal gas as fuel.

Key words: Vacuum casting, YSZ electrolyte membrane tubes, Sintering properties, SOFC

CLC Number: 

TrendMD: