Hydrogen transport through thin palladium-copper alloy composite membranes at low temperatures

	Hydrogen transport through thin palladium-copper alloy composite membranes at low temperatures
	Zhang, Xiaoliang 1,2; Wang, Weiping 1,2; Liu, Jie 1; Sheng, Shishan 1; Xiong, Guoxing 1; Yang, Weishen 1
刊名	thin solid films
	2008-02-29
卷号	516 期号:8 页码:1849-1856
关键词	Pd-Cu alloy hydrogen activation energy surface segregation
英文摘要	hydrogen permeation performance of three thin palladium- copper composite membranes with different thicknesses had been studied between 398 k and 753 k. hydrogen permeance was obtained up to 2.7 x 10(-6) mol/(m(2) s pa) with an ideal selectivity over 1000 at 753 k. the hydrogen permeation exhibited two different activation energies over the temperature range: lower activation energy of about 9.8 kj/mol above 548 k, while higher activation energy of about 26.4 u/mol below 548 k. after permeation tests, the alloy membranes were characterized by x-ray photoelectron spectroscopy, scanning electron microscopy, energy dispersive x-ray analysis and in situ x-ray diffraction. palladium segregation on the surface of these palladium-copper alloys may induce changes of hydrogen permeation performance and thus influence the activation energies. (c) 2007 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; technology ; physical sciences
类目[WOS]	materials science, multidisciplinary ; materials science, coatings & films ; physics, applied ; physics, condensed matter
研究领域[WOS]	materials science ; physics
关键词[WOS]	porous stainless-steel ; pd-cu membranes ; microsystem technology ; surface segregation ; permeation ; separation ; flux ; alumina ; system ; h-2
收录类别	SCI
语种	英语
WOS记录号	WOS:000253872200030
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140801]
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	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaoliang,Wang, Weiping,Liu, Jie,et al. Hydrogen transport through thin palladium-copper alloy composite membranes at low temperatures[J]. thin solid films,2008,516(8):1849-1856.
APA	Zhang, Xiaoliang,Wang, Weiping,Liu, Jie,Sheng, Shishan,Xiong, Guoxing,&Yang, Weishen.(2008).Hydrogen transport through thin palladium-copper alloy composite membranes at low temperatures.thin solid films,516(8),1849-1856.
MLA	Zhang, Xiaoliang,et al."Hydrogen transport through thin palladium-copper alloy composite membranes at low temperatures".thin solid films 516.8(2008):1849-1856.