The effect of CO on hydrogen permeation through Pd and through internally oxidized and un-oxidized Pd alloy membranes

被引:8
|
作者
Flanagan, Ted B. [1 ,2 ]
Wang, D. [1 ,2 ]
Shanahan, Kirk [3 ]
机构
[1] Univ Vermont, Mat Sci Program, Burlington, VT 05405 USA
[2] Univ Vermont, Dept Chem, Burlington, VT 05405 USA
[3] Savannah River Natl Lab, Aiken, SC 29808 USA
关键词
H permeation; Pd; Pd alloy membranes; Internally oxidized; AL ALLOYS; PALLADIUM MEMBRANE; INTERFACES; DIFFUSION; OXIDATION; REACTOR;
D O I
10.1016/j.seppur.2011.03.027
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Pd alloy permeation membranes such as Pd-Al and Pd-Fe which have been internally oxidized are more resistant to inhibition by CO(g) than Pd or un-oxidized alloy membranes. The increased resistance to CO is found to be greater at 423 K than at 473 K or 523 K. In these experiments CO was pre-adsorbed onto the membranes and then H(2) was introduced to initiate the H permeation. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:385 / 392
页数:8
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