(Ni60-Nb40)95-Pd5 비정질 금속막의 수소투과 특성

Abstract

Hydrogen as a high-quality and clean energy carrier has attracted renewed and ever-increasing attention around the world in recent years, mainly due to developments in fuel cells and environmental pressures including climate change issues. In this processes for hydrogen production from fossil fuels, separation and purification is a critical technology. (Ni60-Nb40)95-Pd5 alloy ingots were prepared by arc-melting the mixture of pure metals in an Ar atmosphere. Melt-spun ribbons were produced by the single-roller melt-spinning technique in an Ar atmosphere. Amorphous structure and thermal behavior were characterized by XRD and DSC. The permeability of the (Ni60-Nb40)95-Pd5 amorphous alloy membrane was characterized by hydrogen permeation experiments in the temperature range 623 to 773 K and pressure of 2 bars. The maximum hydrogen permeability was 3.54？10-9[mol？m-1 s-1？pa-1/2] at 773 K for the (Ni60-Nb40)95-Pd5 amorphous alloy.