Radiolytic oxidation of single crystal graphite. Nature of active species and G values
- 1 January 1969
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 65, 211-218
- https://doi.org/10.1039/tf9696500211
Abstract
Two processes are involved in the gasification of graphite by γ-radiation. Species, tentatively identified as ground-state-oxygen atoms in O2 and CO3 in CO2, leave vacancies in basal planes which are subsequently expanded by the reaction of mobile surface oxides. The surface oxides may be generated from gaseous ions. G(vacancy formation) in oxygen and CO2 is about 4 × 10–8 and the G(–C) is 1.45 in CO2 and 5.1 in O2. The transient changes in oxidation rate at the beginning of reaction are analyzed, and all results are shown to be consistent with work on bulk graphite.Keywords
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