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US 2003/0148884 A1Published application
Hydrogen-permeable membrane and manufacturing method of the same
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsNaoki Ito, Satoshi Aoyama, Toshihide Nakata, Masahiko Iijima, Hiromichi Sato
Life of this patent
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Abstract
A hydrogen-permeable membrane includes a permeable layer which has a function of making hydrogen permeate therethrough, and a catalyst layer which acts as a catalyst for promoting permeation of the hydrogen in the permeable layer. An area of the catalyst layer which contacts gas is larger than an area of the permeable layer.
Claims14
A hydrogen-permeable membrane comprising:
- a permeable layer through which hydrogen is permeatable;
- and
- a catalyst layer which promotes permeation of hydrogen in the permeable layer, and which is provided on at least one surface of the permeable layer so as to form a surface layer of the hydrogen-permeable membrane, and whose contact area that contacts gas is larger than an area of the permeable layer.
A hydrogen-permeable membrane comprising:
- a permeable layer which contains a Group VA element and through which hydrogen is permeatable;
- and
- a catalyst layer which promotes permeation of hydrogen in the permeable layer, and which is provided on at least one surface layer of the permeable layer to form a surface of the hydrogen-permeable membrane, the catalyst layer containing at least one metal element selected from a group consisting of Ru, Rh, Ir, Pt, Re and Ni.
A manufacturing method of the hydrogen-permeable membrane which makes hydrogen selectively permeate therethrough, comprising
- preparing a base body;
- arranging the base body in an inert atmosphere;
- and
- sequentially forming, in the inert atmosphere, a first layer which contains Pd on the base body, a second layer which contains a Group VA element on the first layer, and a third layer which contains Pd on the second layer.
1 more element
Dependencies are inferred from the claim text.