@article { author = {Jamshidi, Sona and Kouzegar, Zahra and Babaluo, Ali Akbar and Haghigi, Mohmmad}, title = {Preparation of Pd composite membrane via organic-inorganic activation method in electroless plating technique}, journal = {Hydrogen, Fuel Cell & Energy Storage}, volume = {2}, number = {3}, pages = {151-158}, year = {2015}, publisher = {Iranian Research Organization for Science and Technology (IROST)}, issn = {2980-8537}, eissn = {2980-8863}, doi = {10.22104/ijhfc.2015.195}, abstract = {A palladium composite membrane was prepared via electroless plating technique using organic-inorganic method during activation process. The ceramic support surface was modified by two TiO2-boehmite and one γ-alumina layers to avoid Pd penetration in support pores. Thin and defect-free Pd composite membrane was obtained by creating a relative smoothness on the ceramic support and using Pd nanoparticles in the activated layer. The resulting membrane showed an infinite selectivity for H2/Ar with H2 flux in the range of 0.005-0.035 mol/m2s depending on operating conditions. The hydrogen flux was linearly proportional to the pressure difference across the membrane at different temperatures and then the pressure exponent n was very close to 1. According to linear relationship of Arrhenius plot, the activation energy Ea of Pd membrane was calculated to be 22.54 kJ/mol. H2 permeance kept over 0.023 mol/m2s and the separation factor of H2/Ar over infinite at 773 K for 240 h, confirming high potential of the prepared membrane in H2 purification at high temperatures.}, keywords = {Pd nanoparticles, Intermediate layer,Relative smoothness,Pd membrane,Hydrogen purification}, url = {https://hfe.irost.ir/article_195.html}, eprint = {https://hfe.irost.ir/article_195_128edc4f025f974ecc7a14dc03fca577.pdf} }