I remember reading some ref (this board) to pt catalyst as gotten from auto exhaust systems but can't seem to find it.
soooo- catalytic ceramic substrates WILL function as catalysts in hydrogenation etc reactions according to a gas phase related site.
the substrate is used as is and the gas passed thru resulting in the reactants exposure to the catalyst.
If the catalyst is poisoned by use ---the temperature will have to be raised sufficiently to burn off the poison. I understand this means placing the ceramic in a kiln (furnace) and raising the temp for lenght of time. UTSE
I don't have exact details just a general understanding but
http://mattson.creighton.edu/Microscale_Gas_Chemistry.html (http://mattson.creighton.edu/Microscale_Gas_Chemistry.html)
will give you an idea.
On this site there is an section talking using catalytic converter substrates for this purpose.
Anywho details or directions toward any answers will be appreciated.
OTEECEE & meeeee!!!!