Structurally stable composite PdAg alloy membranes: Introduction of a diffusion barrier

Shu, Jun; Adnot, A.; Grandjean, Bernard P. A.; Kaliaguine, Serge

doi:10.1016/s0040-6090(96)08544-6

Cited by 112 publications

(63 citation statements)

References 16 publications

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“…However, intermetallic diffusion can be prevented if a non-metallic barrier is applied to avoid direct contact of the palladium membrane with the metallic support [22,26,33,34]. It is obvious that the properties of the barrier are of key importance for the methods used for palladium coating and for the performance of the final membrane [32]. First, the barrier should be highly porous to allow a large fraction of the membrane surface to be exposed to the hydrogen containing gas; this will maximize the hydrogen flux.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of composite palladium membranes on sinter-metal supports with a ceramic barrier against intermetallic diffusion

Huang

Dittmeyer

2006

Journal of Membrane Science

115

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of composite palladium membranes on sinter-metal supports with a ceramic barrier against intermetallic diffusion

Huang

Dittmeyer

2006

Journal of Membrane Science

115

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“…Thin Pd 77 Ag 23 films on inert, porous supports such as -Al 2 O 3 , Vycor glass or porous stainless steel are very important membrane materials [1][2][3]. Applications vary from separating H 2 from gas streams to use as a membrane reactor in hydrogenation or dehydrogenation reactions.…”

Section: Introductionmentioning

confidence: 99%

XRay Studies of PdAg Membranes for Hydrogen Separation

Witjens¹,

Bitter²,

Dillen³

et al. 2005

Physica Scripta

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“…As a result, hydrogen flux throughout the Pd membrane decreases with time. Utilizing a diffusion barrier reduces the intermetallic diffusion between Pd membranes and PSS substrates (Shu et al 1996, Ayturk et al 2006. (2) PSS substrates have a large pore size, and a wide pore size distribution.…”

Section: Introductionmentioning

confidence: 99%

Thin Pd membrane on a modified porous stainless steel tube: Al₂O₃particle size selection strategy

Chi

Hsu

Huang

et al. 2011

Journal of the Chinese Institute of Engineers

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Palladium (Pd) membranes for hydrogen separation were deposited on modified porous stainless steel (PSS) tubes using the electroless plating technique. This study explores the hydrogen permeance influenced by the effect of reducing the thickness of the Pd membrane using different sizes of Al 2 O 3 particles, 10 and 1 mm, to modify the pores on the PSS surface. The pore size on the surface of the PSS tubes modified with 10 mm Al 2 O 3 particles decreased from 10 $ 20 mm to less than 5 mm, while the surface of the PSS, modified by 1 mm Al 2 O 3 , was very dense and smooth. Generally, the supporting tubes with smaller pore size on the surface give thinner Pd membrane. The minimum thickness of a dense Pd membrane decreased from 35.1 to 16.2 mm when using 1 mm Al 2 O 3 particles to modify the PSS tubes, but the maximum hydrogen permeance was enhanced from 15.3 to 34.7 m 3 /m 2 h atm 0.5 at 500 C by using 10 mm Al 2 O 3 particles. This evidence demonstrated the hydrogen permeance has a trade-off between the porosity (effective passages) and thickness of the Pd membranes since both are influenced by the Al 2 O 3 particle size used in the surface modification. These results suggested a promising and simple approach to produce a Pd membrane with high hydrogen permeance.

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Structurally stable composite PdAg alloy membranes: Introduction of a diffusion barrier

Cited by 112 publications

References 16 publications

Preparation and characterization of composite palladium membranes on sinter-metal supports with a ceramic barrier against intermetallic diffusion

Preparation and characterization of composite palladium membranes on sinter-metal supports with a ceramic barrier against intermetallic diffusion

XRay Studies of PdAg Membranes for Hydrogen Separation

Thin Pd membrane on a modified porous stainless steel tube: Al₂O₃particle size selection strategy

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Structurally stable composite PdAg alloy membranes: Introduction of a diffusion barrier

Cited by 112 publications

References 16 publications

Preparation and characterization of composite palladium membranes on sinter-metal supports with a ceramic barrier against intermetallic diffusion

Preparation and characterization of composite palladium membranes on sinter-metal supports with a ceramic barrier against intermetallic diffusion

XRay Studies of PdAg Membranes for Hydrogen Separation

Thin Pd membrane on a modified porous stainless steel tube: Al2O3particle size selection strategy

Contact Info

Product

Resources

About

Thin Pd membrane on a modified porous stainless steel tube: Al₂O₃particle size selection strategy