Hydrogen permeable membrane, fuel cell and hydrogen extracting apparatus equipped with the hydrogen permeable membrane, and method of manufacturing the hydrogen permeable membrane
AssigneesToyota Jidosha Kabushiki Kaisha, Sumitomo Electric Industries, Ltd.
InventorsSatoshi Aoyama, Hiromichi Sato, Takashi Uemura, Osamu Mizuno, Kentaro Yoshida, Tomohiko Ihara
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Abstract
A hydrogen permeable membrane (10) for selectively allowing hydrogen to permeate therethrough includes a metal base layer (12) containing vanadium (V), a metal coating layer (16) containing palladium (Pd), and an intermediate layer (14) that is formed between the metal base layer (12) and the metal coating layer (16) and made of a metal having a higher melting point than the metal base layer (12) and the metal coating layer (16) and possessing hydrogen permeability.
Claims16
A hydrogen permeable membrane for selectively allowing hydrogen to permeate therethrough, comprising:
- a metal base layer containing vanadium (V);
- a metal coating layer containing palladium (Pd);
- and
- an intermediate layer that is formed directly on the metal base layer between the metal base layer and the metal coating layer and is made of a metal having a higher melting point than the metal base layer and the metal coating layer and possessing hydrogen permeability.
A method of manufacturing a hydrogen permeable membrane for selectively allowing hydrogen to permeate therethrough, comprising:
- preparing a metal base layer containing vanadium (V);
- forming an intermediate layer made of an alloy directly on the metal base layer;
- and
- forming a metal coating layer containing palladium (Pd) on the intermediate layer,
- wherein the alloy has a higher melting point than the metal base layer and the metal coating layer and possesses hydrogen permeability.
A hydrogen permeable membrane for selectively allowing hydrogen to permeate therethrough, comprising
- a metal base layer containing vanadium (V) and having a first face and a second face;
- a first face intermediate layer that is formed directly on the first face,
- a second face intermediate layer that is formed directly on the second face;
- and
- a first face metal coating layer containing palladium (Pd) formed on the first face intermediate layer and a second face metal coating layer containing palladium (Pd) formed on the second face intermediate layer;
- wherein the first face intermediate layer is made of a metal having a higher melting point than the metal base layer and the first face metal coating layer and possessing hydrogen permeability and wherein the second face intermediate layer is made of a metal having a higher melting point than the metal base layer and the second face metal coating layer and possessing hydrogen permeability.
Dependencies are inferred from the claim text.