Platinum deposition from hydrogen-ion beam irradiated solid precursor

Abstract

We report a particular method of Pt/glassy carbon (GC) surface formation, based on a 15 keV H+/- ion beam irradiation of thin H 2PtCl6×nH2O layer placed over the GC surface. Hydrogen-ion beam irradiation provided an excellent adherence of Pt deposit, unlike to any other Pt-deposition method. Furthermore, the morphology and electrochemical activity of GC/Pt catalyst obtained at the fluence of 5×1017 cm-2 was found to be sensitive to the sign of charge of hydrogen ions. The electrochemical activity of such obtained Pt/GC surface toward oxygen reduction and ethanol oxidation was compared with the activity of the Pt deposits obtained by other more common reduction procedures. © 2011 Elsevier B.V. All rights reserved.