Microstructure and Corrosion Behavior of the Cu-Pd-X Ternary Alloys for Hydrogen Separation Membranes Metadata

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Title

  • Main Title Microstructure and Corrosion Behavior of the Cu-Pd-X Ternary Alloys for Hydrogen Separation Membranes

Creator

  • Author: Dogan, O.N.
    Creator Type: Personal
  • Author: Gao, M.C.
    Creator Type: Personal
  • Author: Howard, B.H.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Office of Fossil Energy.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Fossil Energy (FE)

Publisher

  • Name: National Energy Technology Laboratory (U.S.)
    Place of Publication: United States
    Additional Info: In-house Research

Date

  • Creation: 2012-02-26

Language

  • English

Description

  • Content Description: CuPd alloys are among the most promising candidate materials for hydrogen separation membranes and membrane reactor applications due to their high hydrogen permeability and better sulfur resistance. In order to reduce the Pd content and, therefore, the cost of the membrane materials, efforts have been initiated to develop CuPdM ternary alloys having a bcc structure. The advantages of having Pd as a hydrogen separation membrane are: (1) high hydrogen selectivity; and (2) high hydrogen permeability. The disadvantages are: (1) high cost; (2) hydrogen embrittlement ({alpha} {yields} {beta} Pd hydride); and (3) sulfur poisoning. Experiments (XRD, SEM/EDS) verified that Mg, Al, La, Y and Ti are promising alloying elements to expand the B2 phase region in Cu-Pd binary system. HT-XRD showed that the B2 to FCC transition temperatures for Cu-Pd-X (X = Mg, Al, La, Y and Ti) are higher than that of Cu-Pd binary alloys. While the Cu-50Pd alloy had the highest corrosion resistance to the H2S containing syngas, the Cu-Pd-Mg alloy had a comparable resistance.

Subject

  • Keyword: Corrosion
  • Keyword: Alloys
  • Keyword: Membranes
  • Keyword: X-Ray Diffraction
  • STI Subject Categories: 08 Hydrogen
  • Keyword: Hydrogen Embrittlement
  • STI Subject Categories: 36 Materials Science
  • Keyword: Microstructure
  • Keyword: Poisoning
  • Keyword: Sulfur
  • Keyword: Transition Temperature
  • Keyword: Permeability
  • Keyword: Corrosion Resistance
  • Keyword: Hydrogen

Source

  • Conference: Materials Challenges in Alternative and Renewable Energy, Feb. 26 - Mar 1, 2012, Clearwater, FL

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: NETL-PUB-244
  • Grant Number: NONE
  • Office of Scientific & Technical Information Report Number: 1039046
  • Archival Resource Key: ark:/67531/metadc840472