Hydrogen is believed to be crucial for the energy and environmental sustainability. It is considered as a clean energy carrier which can be used for the transportation and stationary power generation when used as fuel for proton exchange membrane fuel cell. Demand for hydrogen has grown continuously in recent years and so is the interest in effective hydrogen separation technologies. Separation of hydrogen using membranes and membrane-based processes is a key technology in production of high purity hydrogen, whether it is from biomass gasification, coal gasification or steam reforming of hydrocarbons and/or alcohols. In the present work, dense Pd-Ag composite membranes on microporous stainless steel substrate (MPSS) were fabricated by novel surfactant induced electroless plating (SIEP) process. Dodecyl trimethyl ammonium bromide (DTAB), a cationic surfactant was used in Pd and Ag baths for the sequential deposition of metals on MPSS substrates. Fabricated membranes are characterized and tested for thermal and mechanical stability, structural integrity and H2-permselectivity. Morphological features of the membranes at pre- and post-annealing conditions are studied by using SEM, XRD, EDX, and AFM techniques. Permeability tests and long term performance under thermal cycling are carried out with hydrogen at temperatures and pressures in the range of 523-723 K and 20-100 psi, respectively. The performance of the SIEP process developed Pd-Ag membrane will be compared with the membranes fabricated using conventional electroless plating method.  Reference M. S. Islam, M. M. Rahman, and S. Ilias. 'Characterization of Pd�Cu membranes fabricated by surfactant induced electroless plating (SIEP) for hydrogen separation.' International Journal of Hydrogen Energy 37.4 (2012): 3477-3490

Characterization of Pd-Ag membranes fabricated by surfactant induced electroless plating (SIEP) for hydrogen separation

248th National Meeting (2014)

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