Hydrogen permeation of Ni-BaCe0.9Y0.1O3-delta Cermet

作者：Yang Jing^*; Fang Shu Min; Wu Xiu Sheng; Chen Chu Sheng; Liu Wei

来源：Journal of Inorganic Materials, 2007, 22(6): 1243-1246.

• Ni-BaCe0.9Y0.1O3-delta cermet
• volume ratio
• hydrogen separation

Hydrogen permeation ability of Ni-BaCe0.9Y0.1O3-delta (Ni-BCY)cermet with different Ni volume ratios were investigated at intermediate temperatures (600-750 degrees C). The experimental results show that proton-electronic mixed conductors are formed when Ni volume ratio is up to 25%, and the hydrogen permeation rate reaches the highest when Ni volume ratio is 30%. The hydrogen permeation measurement results of Ni-BCY(40/60) cermet with different thicknesses indicate that the bulk diffusion controls hydrogen permeation when thicknesses of samples are above 0.6mm, however, as reducing sample thickness to 0.36mm or less hydrogen permeation is controlled by surface exchange process.

• 出版日期2007-11
• 单位中国科学技术大学