Compensation Effect in H-2 Permeation Kinetics of PdAg Membranes
文献类型：期刊论文
| 作者 | Zeng, Gaofeng; Goldbach, Andreas; Shi, Lei; Xu, Hengyong |
| 刊名 | journal of physical chemistry c
 |
| 出版日期 | 2012-08-30 |
| 卷号 | 116期号:34页码:18101-18107 |
| 英文摘要 | knowledge about the (inter)dependence of permeation kinetic parameters on the stoichiometry of h-2- selective alloys is still rudimentary, although uncovering the underlying systematic correlations will greatly facilitate current efforts into the design of novel high-performance h-2 separation membranes. permeation measurements with carefully engineered, 2-7 mu m thick supported pd100-xagx membranes reveal that the activation energy and pre-exponential factor of h-2 permeation laws vary systematically with alloy composition, and both kinetic parameters are strongly correlated for x <= 50. we show that this permeation kinetic compensation effect corresponds well with similar correlations in the hydrogen solution thermodynamics and diffusion kinetics of pdag alloys that govern h-2 permeation rates. this effect enables the consistent description of permeation characteristics over wide temperature and alloy stoichiometry ranges, whereas hydrogen solution thermodynamics may play a role, too, as a yet unrecognized source of kinetic compensation in, for example, h-2-involving reactions over metal catalysts or hydrogenation/dehydrogenation of hydrogen storage materials. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
| 关键词[WOS] | palladium-silver membranes ; low-temperature h-2 ; mathematical origins ; hydrogen-production ; composite membrane ; ag membranes ; alloys ; diffusion ; thermodynamics ; permeability |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000308120000014 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/143000]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Gaofeng,Goldbach, Andreas,Shi, Lei,et al. Compensation Effect in H-2 Permeation Kinetics of PdAg Membranes[J]. journal of physical chemistry c,2012,116(34):18101-18107. |
| APA | Zeng, Gaofeng,Goldbach, Andreas,Shi, Lei,&Xu, Hengyong.(2012).Compensation Effect in H-2 Permeation Kinetics of PdAg Membranes.journal of physical chemistry c,116(34),18101-18107. |
| MLA | Zeng, Gaofeng,et al."Compensation Effect in H-2 Permeation Kinetics of PdAg Membranes".journal of physical chemistry c 116.34(2012):18101-18107. |
入库方式： OAI收割
来源：大连化学物理研究所
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