Hydrogen separation membrane

Patent Granted PROBLEM TO BE SOLVED: To provide a composite metallic glass hydrogen separation membrane with excellent hydrogen permeability and hydrogen embrittlement resistance, and a manufacturing method therefor. ; SOLUTION: The hydrogen separation membrane is composed of a composite structure in which Nb, Ta, V and Ti particles with excellent hydrogen permeability are dispersed in a metallic glass matrix which has an amorphous structure with excellent hydrogen embrittlement resistance, and the hydrogen separation membrane contains at least one kind of elements with the excellent permeability to 5 to 80 wt.%.