Palladium-gold membranes in mixed gas streams with hydrogen sulfide: Effect of alloy content and fabrication technique

▶ Pd-Au membranes were tested in synthetic WGS mixtures with up to 50 ppm H2S. ▶ Higher gold content increases sulfur and carbon tolerance. ▶ Cold worked membranes are stable for hundreds of hours in H2S. ▶ Sputtered membranes corrode and lose selectivity when H2S is applied. ▶ Texturing and bulk crystal arrangements alter performance in mixed gases.