Permeable film for separating hydrogen
AssigneesMitsubishi Materials Corporation, National Institute of Advanced Industrial Science and Technology
InventorsKoichi Kita, Shigeki Hara, Naotsugu Itoh
Life of this patent
Estimating the term…
Abstract
A hydrogen permeable membrane which has an excellent high-temperature amorphous stability and a long lifetime under high-temperature heating operation and which can be miniaturized for use in a high-performance hydrogen purifier. The hydrogen permeable membrane is made of a non-crystalline nickel-zirconium alloy or zirconium-nickel alloy composed of 44 to 75 atom % of nickel or zirconium; and 0.2 to 16 atom % of aluminum, 0.2 to 12 atom % of vanadium and/or niobium, or 0.2 to 12 atom % of niobium and 0.1 to 10 atom % of phosphorus (provided that the combined amount of niobium and phosphorus is not more than 18 atom %); with the balance being zirconium or nickel and unavoidable impurities.
Claims9
A hydrogen permeable membrane comprising
- a non-crystalline zirconium-nickel alloy composed of:
- 44 to 75 atom % of zirconium;
- and
- 0.2 to 16 atom % of aluminum;
- wherein the balance being nickel and unavoidable impurities.
A hydrogen permeable membrane comprising
- a non-crystalline zirconium-nickel alloy composed of
- 44 to 75 atom % of zirconium;
- and
- 0.2 to 12 atom % of at least one of vanadium and niobium;
- wherein the balance being nickel and unavoidable impurities.
A hydrogen permeable membrane comprising
- a non-crystalline zirconium-nickel alloy composed of
- 44 to 75 atom % of zirconium;
- 0.2 to 12 atom % of niobium;
- and
- 0.1 to 10 atom % of phosphorus, wherein the combined amount of niobium and phosphorus is less than or equal to 18 atom %,
- with the balance being nickel and unavoidable impurities.
A hydrogen permeable membrane comprising a non-crystalline nickel-zirconium alloy composed of:
- 44 to 75 atom % of nickel;
- and
- 0.2 to 16 atom % of aluminum;
- wherein the balance being zirconium and unavoidable impurities.
A hydrogen permeable membrane comprising a non-crystalline nickel-zirconium alloy composed of:
- 44 to 75 atom % of nickel;
- and
- 0.2 to 12 atom % of at least one of vanadium and niobium,
- wherein the balance being zirconium and unavoidable impurities.
A hydrogen permeable membrane comprising a non-crystalline nickel-zirconium alloy composed of:
- 44 to 75 atom % of nickel;
- 0.2 to 12 atom % of niobium;
- and
- 0.1 to 10 atom % of phosphorus;
- wherein the combined amount of niobium and phosphorus is not more than 18 atom %,
- wherein the balance being zirconium and unavoidable impurities.
Dependencies are inferred from the claim text.