期刊
JOURNAL OF MEMBRANE SCIENCE
卷 489, 期 -, 页码 264-269出版社
ELSEVIER
DOI: 10.1016/j.memsci.2015.03.098
关键词
Metallic membranes; Cu-Zr amorphous metals; Hydrogen permeability; Surface oxides; Stability
资金
- Ira A. Fulton Schools of Engineering
- American Chemical Society Petroleum Research Fund [52461-DNI10]
We synthesized three compositions of amorphous metallic Cu-Zr (Zr=37, 54, 60 at%) membranes by splat quenching. We measured the thermal properties with differential scanning calorimetry (DSC). We tested hydrogen permeability of the membranes before and after Pd coatings. Experimentally, we found that the hydrogen permeability of the alloys is lower than that predicted by existing modeling results: we hypothesize this may be the result of oxides formed on the surface of our membranes. The formation of oxides is composition dependent. The permeability change during the testing time indicates that hydrogen has promoted structural change at a temperature lower than the glass transition temperature (T-g). Our original experimental results show that thermal stability is critical for hydrogen separation applications in amorphous metallic membranes. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据