preparation and thermal treatment of metal composite membrane by sequential electroless plating technique for H2 purification in steam reforming process

Metal composite membranes were prepared by sequential electroless plating technique. The prepared membrane were characterized by x-ray diffraction (XRD). Scanning electron microscopy (SEM) , energy dispersive spectroscopy and inductively coupled plasma atomic emission spectroscopy techniques (ICP-AES). Effects of annealing times, Ag content , and air treatment on the hydrogen permission flux and morphology of the alloys were investigatedshowed that the prepared type of tube had a good potential as substrate for membrane preparation . in addition of the uniform defect –free alloy was prepared by annealing at 550 o c in H2atmosphere. The permeation result showed an increased in H2 permeation flux by increasingthe Ag account and the annealing time. In addition the air treatment of the prepared membrane at 400oc for 1 h changed and morphology enhanced the hydrogen FLUX

کلیدواژه ها:

metal composite membrane ، electroless plating ، thermal treatment