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题名: Pd and Pd-Ni alloy composite membranes fabricated by electroless plating method on capillary alpha-Al2O3 substrates
作者: Lu, Hui1;  Zhu, Linlin1;  Wang, Weiping1;  Yang, Weishen1;  Tong, Jianhua2
关键词: Pd composite membrane ;  Pd-Ni alloy ;  Electroless plating ;  Hydrogen permeation ;  Capillary substrates
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2015-03-02
DOI: 10.1016/j.ijhydene.2014.09.121
卷: 40, 期:8, 页:3548-3556
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: Novel home-made porous capillary alpha-Al2O3 substrates were used as mechanical supports for the Pd-based composite membranes for hydrogen permeation. The rough surface of the substrates with large open pores were modified by vacuum sol-gel dip-coating followed by high temperature calcination treatment. After the introduction of the electroless plating catalysts of Pd particles on the modified surface by an improved catalyzing process, the defect-free Pd and Pd-Ni alloy thin membranes were deposited by cost-effective and facile electroless plating technique. The Pd composite membranes showed a hydrogen permeance of 2.55 x 10(-3) mol/(s m(2) Pa-0.5) at 500 degrees C, and 730 for the permselectivity of H-2/N-2. The Pd-Ni alloy composite membranes showed a hydrogen permeance of 2.74 x 10(-3) mol/(s m(2) pa(0.5)) and 640 for the permselectivity of H-2/N-2 at the same temperature. The Pd and Pd-Ni membranes showed good long-term permeation stability at 500 degrees C under hydrogen permeation condition. Moreover, the Pd-Ni alloy composite membrane showed a better hydrogen permeation stability of more than 100 h at 300 degrees C under hydrogen permeation condition without obvious hydrogen embrittlement occurred. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: HOLLOW-FIBER MEMBRANES ;  HYDROGEN ;  THIN ;  SEPARATION ;  STABILITY ;  REACTORS
语种: 英语
WOS记录号: WOS:000350939600044
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146102
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Colorado Sch Mines, Dept Met & Mat Engn, Golden, CO 80401 USA

Recommended Citation:
Lu, Hui,Zhu, Linlin,Wang, Weiping,et al. Pd and Pd-Ni alloy composite membranes fabricated by electroless plating method on capillary alpha-Al2O3 substrates[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2015,40(8):3548-3556.
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