Alloying effects on hydrogen permeability of V without catalytic Pd overlayer

作者：Nakamura Y; Yukawa H^*; Suzuki A; Nambu T; Matsumoto Y; Murata Y

来源：Journal of Alloys and Compounds, 2015, 645: S275-S279.

DOI：10.1016/j.jallcom.2014.12.242

• Hydrogen permeable membrane
• V-based alloy
• Alloying effect
• Hydrogen permeability
• Air treatment
• Hydrogen mobility

Hydrogen permeability of air-treated V-based alloy membranes without Pd coating have been investigated. The diffusion-limiting hydrogen permeation reaction takes place even without catalytic Pd overlayer on the surface. It is shown that pure V and its alloy membranes without Pd overlayer possess excellent hydrogen permeability and good durability at high temperature. The new description of hydrogen permeation based on hydrogen chemical potential has been applied and the hydrogen flux is analyzed in terms of the mobility of hydrogen atom and the PCT factor, f(PCT).

• 出版日期2015-10-5