http://www.mpi-muelheim.mpg.de/kofo/institut/arbeitsbereiche/reetz/englisch/reetz_forsch3.html (http://www.mpi-muelheim.mpg.de/kofo/institut/arbeitsbereiche/reetz/englisch/reetz_forsch3.html)
They apparently precipitate PtCl2 with a base into a solution with ammonium salts (soap). This makes "nanoparticle colloidal catalyst" of PtO. They did some red. amination with it. Ning wonders if this would work with nickel?