Synthesis of Pd-Ag Membranes by Electroless Plating for H2 Separation

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作者
Li, Yaning [1 ]
Kang, Xinting [1 ]
Tang, Huiping [1 ]
Wang, Jian [1 ]
机构
[1] State Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi'an,710016, China
关键词
Silver alloys - Phase structure - Binary alloys - Electroless plating - Palladium alloys - Structure (composition);
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摘要
Both sequential-deposition and co-deposition based on electroless plating method for the preparation of Pd-Ag composite membranes were investigated. The morphology, phase structure, compositional homogeneity and compactness of the prepared membranes were compared. The results show that Pd-Ag membranes prepared by co-deposition are dendritic, inhomogeneous, and poorly compact, while those by multilayer sequential deposition are more homogeneous and compact. The multi-layer sequential deposition requires higher temperature and longer time for annealing to form Pd-Ag alloy. The Pd particles size is decreased by separate Ag layer and the surface of Pd-Ag membrane is smoother. © 2017, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.
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页码:3688 / 3692
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