Article ID Journal Published Year Pages File Type
1685529 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2011 6 Pages PDF
Abstract
Glassy carbon was irradiated with 15 keV H+ ion beam. It was observed that the implanted hydrogen is unstable in material and evolves as H, H2 and H2O. Post-irradiation evolution of H, H2 and H2O from proton irradiated glassy carbon was monitored by temperature programmed desorption (TPD) in the period of 30 days. In between irradiation and TPD measurements the irradiated samples were stored in air. The evolution of the molecular hydrogen, although the protons are implanted deeply below the surface of the disordered glassy carbon, proceeds over the same mechanism as in the case of low-energy H-atoms chemisorbed on the very surface of an ideal graphite structure.
Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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