Proton-Conducting Pd Membranes

For the transport of hydrogen through a palladium membrane, please refer to Section 4.2.5.1. The membranes may be prepared as pure palladium membranes, but the trend has moved in the direction of preparing composites and using Pd alloys. There seems to be a number of advantages using composite palladium membranes supported on porous substrates over palladium foils 

Some Modified Nanoscale Ceramic Microstructures within Membranes with Pore Diameters of 3-5 nm 

Membrane Material Modification by Modified Structure size (nm) Loading (wt%) 

7-AI2O3 Si02 (amorphous) 20 nm layer + porous plugs 1.5 5-100 

9/a-Al203 ZTO2/Y2O3 Multilayer/porous plugs Few nm pore size 1-100 

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