Microstructure analysis of the intermetallic diffusion-induced alloy phases in composite Pd/Ag/porous stainless steel membranes

被引：32

作者：

Ayturk, M. Engin ^{[1
]}

Engwall, Erik E. ^{[1
]}

Ma, Yi Hua ^{[1
]}

机构：

[1] Worcester Polytech Inst, Dept Chem Engn, Ctr Inorgan Membrane Studies, Worcester, MA 01609 USA

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2007年 / 46卷 / 12期

关键词：

D O I：

10.1021/ie061677j

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The surface interactions and associated phase changes of the annealed electroless plated Pd and Ag on porous stainless steel (PSS) supports were investigated in the temperature range of 500-800 degrees C. The complete miscibility of the Pd and Fe binary solid solutions was verified by the X-ray phase analysis. The Fe segregation into the Pd matrix was as high as 59 wt % upon annealing at 800 degrees C for 20 h in H-2. It was further shown that the solid solutions of Fe and Ag were immiscible for the temperature range investigated. In the case of the ternary phase analysis, it was found that both the Pd/Fe and Pd/Ag alloy formations took place on the support surface, in which both alloy compositions became richer in Pd with decreasing annealing temperature.

引用

页码：4295 / 4306

页数：12

共 38 条

[1] Adda Y, 1966, La diffusion dans les solides
[2] Synthesis of composite Pd-porous stainless steel (PSS) membranes with a Pd/Ag intermetallic diffusion barrier
Ayturk, A. Engin
Mardilovich, Ivan P.
Engwall, Erik E.
Ma, Yi Hua
[J]. JOURNAL OF MEMBRANE SCIENCE, 2006, 285 (1-2) : 385 - 394
[3] AYTURK ME, 2004, P AICHE ANN M AUST T
[4] Mechanical alloying in the immiscible systems Ag-M (M = Fe, Co, Ni)
Bonyuet, D
Ochoa, J
González, G
[J]. ISMANAM 2003: METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, 2004, 20-21 : 225 - 230
[5] Nanostructured palladium-iron membranes for hydrogen separation and membrane hydrogenation reactions
Bryden, KJ
Ying, JY
[J]. JOURNAL OF MEMBRANE SCIENCE, 2002, 203 (1-2) : 29 - 42
[6] First-principles study for ordering and phase separation in the Fe-Pd system
Chen, Y
Atago, T
Mohri, T
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (08) : 1903 - 1913
[7] Palladium-silver composite membranes by electroless plating technique
Cheng, YS
Yeung, KL
[J]. JOURNAL OF MEMBRANE SCIENCE, 1999, 158 (1-2) : 127 - 141
[8] CRISTENSEN A, 1997, PHYS REV B, V56, P5822
[9] CULLITY BD, 2001, ELEMENTS XRAY DIFFRA, P664
[10] Fahler S, 1998, MATER RES SOC SYMP P, V502, P139

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