I have been working with JP over the past month to attempt to form a thin, continuous film of PdAg on a pnc-Si membrane using e-beam evaporation. The aim of this is to test these for selective hydrogen permeability at elevated temperature for hydrogen purification. We have made three attempts so far. We are using…
The Gaborski lab has been working with Blanca’s lab performing some scoping tests w/ SiN and SiOx microporous membranes. The aim is obtain proof of concept results regarding the efficacy of using a microporous membrane to trap sub-micron particles with DEP. Last week, we tested w/ our 200 nm polycarbonate beads. We were able to…
For the upcoming tests I have planned for H2 purification, I need a fixture to hold the pnc-Si membranes (Sepcon format) that is compatible with operation up to 500 C. No polymers are going to work. I describe the approach I’m working on below. I heard that Karl is developing a holder similar to what…
I have been talking with JP about getting some pnc-Si membranes coated with ~10-20 nm layers of Pd (or Pd-Ag) to do preliminary tests on hydrogen permeation devices. Tom and I are thinking of submitting a proposal. This kind of technology has been used industrially and follows the general principle shown below: These operate at…
