Evaluation of hydrogen permeation on Al2O3–PZT composite membrane

Recent research into ceramic composites for membrane applications has focused on the permeability and selectivity of hydrogen. The improvement of hydrogen permeation of conducting ceramic membranes has been achieved by using synthesized Al2O3 and PZT, which were prepared by the Sol–gel process. Using the pure Al2O3 and PZT powder derived from aluminum isopropoxide precursors and lead acetate, zirconium dioxide and titanium (IV) isopropoxide were fabricated. The membranes were prepared by hot press sintering (HPS). Al2O3–PZT composite membranes were characterized by X-ray diffraction (XRD), thermo gravimetric and differential thermal analysis (TG-DTA), energy dispersive spectroscopy (EDS), field emission scanning electron microscopy (FE-SEM), and BET specific surface area analysis. The hydrogen permeability of the Al2O3–PZT composite membrane was estimated with Sievertʹs type membrane equipment.