Sang Moon, L.L.Sang MoonXu, N.N.XuKim, S.S.S.S.KimLi, A.A.LiGrace, John R.John R.GraceLim, C.J.C.J.LimBoyd, T.T.BoydRyi, S.-K.S.-K.RyiSusdorf, AlexanderAlexanderSusdorfSchaadt, AchimAchimSchaadt2022-03-052022-03-052017https://publica.fraunhofer.de/handle/publica/24916610.1016/j.memsci.2017.06.093The potential application of palladium-ruthenium composite membranes to the separation of hydrogen from chlorosilane gases in silicon-based industries was investigated. Palladium and palladium-ruthenium composite membranes were deposited on pretreated porous stainless steel substrates by electroless plating. Hydrogen permeation tests and temperature programmed desorption (TPD) analysis revealed that the addition of a Ru overlayer on Pd changed the hydrogen adsorption characteristics, resulting in improved stability of the membrane at low temperatures. The Ru/Pd/Al2O3/PSS composite membrane had a stable hydrogen permeation flux of 1.8 m3 m−2 h−1 over a period of 1200 h at 180 °C without suffering hydrogen embrittlement. After exposure to impurities such as HCl and SiHCl3, the hydrogen permeation flux of the Ru/Pd/Al2O3/PSS composite membrane was stable over a period of 9 h with feed pressure of 2.0 bar at 225 °C. Scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and EDX mapping of the Ru/Pd/Al2O3/PSS membrane after the exposure test showed no surface deposition of Si and Cl.enEnergietechnikPhotovoltaikSilicium-PhotovoltaikWasserstofftechnologiePilotherstellung von industrienahen Solarzellenthermochemischer Prozesschemical vapor deposition541journal article