Hydrogen permeation through porous stainless steel for palladium-based composite porous membranes

Abstract

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Interlayer Properties of In-Situ Oxidized Porous Stainless Steel for Preparation of Composite Pd Membranes

“…Only a few works propose the use of relatively thick unsupported films [24,25]. A wide variety of materials has been suggested for the preparation of supported Pd-based membranes, highlighting the porous metals [23,26] and the ceramic ones [18,27]. The properties of supports have a clear influence on the membrane performance, despite an ideal solution is not adopted.…”

Review of Supported Pd-Based Membranes Preparation by Electroless Plating for Ultra-Pure Hydrogen Production

“…In the last years, some other materials have been investigated to develop more efficient intermediate layers and achieve better supported membranes. Some of these new materials are thin TiN thin layers obtained by sputtering [ 145 ], a combination of silver as diffusion barrier and aluminium hydroxide gel for filling in the biggest pores of the support [ 146 ], bi-metal multi-layers formed by staked layers of Pd and Ag [ 147 ], nickel [ 148 ] or even tungsten powders [ 47 ]. However, despite these promising results, a definitive solution has not yet been found.…”

“… Porous stainless-steel supports before ( a ); and after the incorporation of different materials as intermediate layer: mixed oxides by calcination in air ( b ); alumina ( c ); amorphous silica ( d ); zeolite ( e ); zirconia ( f ); ceria ( g ); and tungsten ( h ). Figure adapted from originals published in [ 47 , 51 , 78 , 99 , 132 , 136 , 153 ], with permission from © Elsevier. …”

“…However, the preparation of ultrathin palladium layers entails two main problems: (i) limitation of membrane mechanical resistance and (ii) difficulty to obtain films free of defects. The use of porous supports tries to overcome these problems and thus, to maintain adequate mechanical properties saving palladium [ 45 , 46 , 47 , 48 , 49 ].…”

Major Nuclear Accidents - A Review

“…Has completed phd from Isfahan University of Technology, Isfahan, Iran. Alexander Eberle from Germany Ludwig Maximilian University of Munich focused on Organic Solid-Solid Wetting Deposition (OSWD) that allows the formation of monolayers made of insoluble organic semiconductors such as Pentacene, PTCDA or Quinacridone [110][111][112][113][114][115][116][117][118][119][120] . These fallouts enable a low-cost large-scale production of semiconductor-monolayers with well-defined properties.…”