The electrode behavior changed if the electrode was preoxidized producing a platinum oxide
On exposure to oxygen the platinum surface is oxidised, resulting in the formation of an inactive surface platinum oxide
Some specific subjects discussed include formation of metal-semiconductor core-shell nanoparticles using electrochemical atomic layer deposition, and remote plasma and thermal ALD of platinum and platinum oxide
Platinum oxide, Karstedl's catalyst (platinum (0)-L3-divinyl-l,l,33-tet-ramethyl disilo'xane complex), 1-iodooctane, CD[Cl.
00 g ol' platinum oxide was added to Ihe reaction mixture and the reaction mixture vigorously stirred for 16 h at 60[degrees]C.
After completion of the reaction, platinum oxide was removed by filtration.
Furthermore, "the platinum oxide
layer that quickly forms on an electrode's surface dramatically slows down the chemical reactions there," says Adzic.
The method is based on a hydrogen gas-saturated mobile phase with fluorescent detection after postcolumn reduction by a platinum oxide catalyst column (3).
Determination of endogenous vitamin K (phylloquinone and menaquinone-n) in plasma by high performance liquid chromatography using platinum oxide catalyst reduction and fluorescence detection.
Native elements and alloys of silver, gold-silver, gold-mercury-lead-tin, and a mixed grain of platinum, platinum-palladium, lead-gold-mercury and platinum oxide
were also detected.