Alloying effects on hydrogen permeability of V without catalytic Pd overlayer
Alloying effects on hydrogen permeability of V without catalytic Pd overlayer
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DOI：
10.1016/j.jallcom.2014.12.242
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发表时间：
2015-10-05
影响因子：
6.2
通讯作者：
Murata, Y.
中科院分区：
文献类型：
--
作者：
Nakamura, Y.;Yukawa, H.;Murata, Y.
研究了空气处理的无 Pd 涂层的 V 基合金膜的氢渗透率。即使表面没有催化钯覆盖层，也会发生扩散限制氢渗透反应。结果表明，无Pd覆盖层的纯V及其合金膜具有优异的氢渗透性和良好的高温耐久性。应用了基于氢化学势的氢渗透的新描述，并根据氢原子的迁移率和 PCT 因子 f(PCT) 来分析氢通量。 (C) 2015 Elsevier B.V. 保留所有权利。
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.