COST-EFFECTIVE METHOD FOR PRODUCING SELF SUPPORTED PALLADIUM ALLOY MEMBRANES FOR USE IN EFFICIENT PRODUCTION OF COAL DERIVED HYDROGEN

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Description

In continuation of efforts from last quarter, processing parameters, used in the formation of Pd-Cu alloy films, were being optimized in a drum (web) coater system with the goal of producing large-area, contiguous, pinhole-free films for H{sub 2} separation membranes. Since the (pre-treatment) functionality of the surface of the plastic backing material is sub-optimal, they tended to produce films in the drum coater that were either not contiguous (disseminates upon release from the polymer backing material) or contain pinholes. Alternative approaches, such as direct deposition onto thermally oxidized silicon wafers, have been attempted to yield pinhole-free films; i.e., formation of ... continued below

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10 pages

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Lanning, B. & Arps, J. July 1, 2004.

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Description

In continuation of efforts from last quarter, processing parameters, used in the formation of Pd-Cu alloy films, were being optimized in a drum (web) coater system with the goal of producing large-area, contiguous, pinhole-free films for H{sub 2} separation membranes. Since the (pre-treatment) functionality of the surface of the plastic backing material is sub-optimal, they tended to produce films in the drum coater that were either not contiguous (disseminates upon release from the polymer backing material) or contain pinholes. Alternative approaches, such as direct deposition onto thermally oxidized silicon wafers, have been attempted to yield pinhole-free films; i.e., formation of a poorly adherent Pd-Cu film on silicon will then directly release from the silicon substrate. Permeation characteristics of a 25 {micro}m-thick, Pd{sub 60}Cu{sub 40} alloy foil were conducted. After pre-treating the sample to stabilize the FCC {beta}-phase, the hydrogen permeability was determined to be 5.4 x 10{sup -5} cm{sup 3} cmcm{sup -2}s{sup -1}cm Hg{sup -1/2}. Thin, 1-3 {micro}m-thick Pd-Cu alloy films have been prepared on PS films and samples will be prepared and tested in the next quarter.

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10 pages

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OSTI as DE00828274

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  • Other Information: PBD: 1 Jul 2004

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  • Report No.: NONE
  • Grant Number: FC26-03NT41849
  • DOI: 10.2172/828274 | External Link
  • Office of Scientific & Technical Information Report Number: 828274
  • Archival Resource Key: ark:/67531/metadc785191

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • July 1, 2004

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • Jan. 3, 2017, 1:52 p.m.

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Lanning, B. & Arps, J. COST-EFFECTIVE METHOD FOR PRODUCING SELF SUPPORTED PALLADIUM ALLOY MEMBRANES FOR USE IN EFFICIENT PRODUCTION OF COAL DERIVED HYDROGEN, report, July 1, 2004; United States. (digital.library.unt.edu/ark:/67531/metadc785191/: accessed January 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.