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Fabrication and Stability of V/YSZ Cermet Membrane for Hydrogen Separation  

Jeon, Sung-Il (Green House Gas Research Center, Korea Institute of Energy Research)
Park, Jung-Hoon (Green House Gas Research Center, Korea Institute of Energy Research)
Lee, Sang-Jin (Green House Gas Research Center, Korea Institute of Energy Research)
Choi, Soo-Hyun (Green House Gas Research Center, Korea Institute of Energy Research)
Publication Information
Membrane Journal / v.20, no.1, 2010 , pp. 62-68 More about this Journal
Abstract
The powder mixture for fabricating the cermet membranes was prepared by mechanically mixing 60 vol.% vanadium with $Y_2O_3$-stabilized $ZrO_2$ (YSZ). The powder mixture was pressed into disks, which were then sintered in vacuum at $1600^{\circ}C$ for 2 h. As-sintered membrane was dense and mounted to a stainless steel ring with brazing filler. Hydrogen fluxes of V/YSZ membrane have been measured in the range of $200{\sim}350^{\circ}C$ with 100% $H_2$. The crack was formed in the both sides of membrane at $350^{\circ}C$ and pressure of 0.5 bar. During permeation experiment, vanadium of V/YSZ membrane reacted with hydrogen to form $V_2H$ which was the origin of crack formation.
Keywords
vanadium; cermet membrane; hydrogen separation;
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Times Cited By KSCI : 1  (Citation Analysis)
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