Alloying effects on hydrogen permeability of V without catalytic Pd overlayer

JOURNAL OF ALLOYS AND COMPOUNDS

卷:645

Article; Proceedings Paper

Nakamura, Y.¹  Yukawa, H.¹  Suzuki, A.¹  Nambu, T.²  Matsumoto, Y.³  Murata, Y.¹ 

[1] Nagoya Univ, Grad Sch Engn, Dept Mat Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Suzuka Natl Coll Technol, Dept Mat Sci & Engn, Suzuka, Mie 5100294, Japan

[3] Oita Natl Coll Technol, Dept Mech Engn, Oita 8700152, Japan

关键词: Hydrogen permeable membrane;    V-based alloy;    Alloying effect;    Hydrogen permeability;    Air treatment;    Hydrogen mobility;   

DOI  :  10.1016/j.jallcom.2014.12.242

来源: Elsevier

【 摘 要 】

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). (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free