HYDROGEN PERMEABLE ALLOY MEMBRANE, MEMBER FOR HYDROGEN PERMEATION AND ITS PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a hydrogen permeable alloy membrane excellent in a performance for selectively permeating/separating hydrogen from a mixed gas containing hydrogen and applicable to a purification/separation device for hydrogen gas used as a fuel for a fuel cell, a member for hydrogen permeation and its production method.

SOLUTION: The hydrogen permeable alloy membrane is characterized in that it is a metal membrane containing Pd or Pd alloy having face-centered cubic crystal structure as a main component, it contains 1-20 at% of B and grating constant (room temperature) of the face-centered cubic crystal structure is 0.390 nm or more. In the member for hydrogen permeation, the hydrogen permeable alloy membrane is formed on a gas permeable porous metal support.

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