Hydrogen permeation

Amorphous alloy membranes are anticipated as substitutes for expensive palladium membranes. Hydrogen separation modules consisting of four amorphous Zr36Ni64 membranes have been developed to demonstrate their practical usefulness. First, surface investigation showed that 50-mm-wide membranes are smo

The hydrogen flux in palladium membranes acquired from different vendors has been measured as a function of membrane thickness, temperature and feed (pure H2) pressure p1, with permeate (pure H2) pressure p2 fixed at 1 atm. Palladium foils 12.5, 25 and 47 µm thick were studied at 75–500°C and p1 val

In this study, hydrogen selective membranes have been fabricated using microsystem technology. A 750 nm dense layer of Pd (77 wt%) and Ag (23 wt%) is deposited on a non-porous 1 mm thick silicon nitride layer by cosputtering of a Pd and a Ag target. After sputtering, openings of 5 µm are made in the