Suppose I have an electrochemical hydrogen pump (Wikipedia), whereby I have an anode and cathode, each with supported catalyst, separated by a proton exchange membrane. When I apply an appropriate potential, H$_2$ is effectively transported across the membrane. Now assume I do not have platinum catalysts on both electrodes, but have different catalysts on anode and cathode. What I want is that the anode catalyst strongly favours the hydrogen oxidation reaction and the cathode catalyst strongly favours the hydrogen evolution reaction. Such that if I reverse bias the cell, so that the electrode that is normally the anode becomes the cathode and vice versa, I will have a much reduced flow of hydrogen through the membrane with respect to regular polarity.
Do such catalysts allowing for such an asymmetrical cell exist? Is such a thing possible?
Thanks