Abstract
Based on our experimental studies of the simultaneous O+ and H+ irradiation of graphite, symbolically represented as the O+-H+→C reaction system, we have developed a semiempirical kinetic model for describing the reactions leading to the formation of the reaction products CH4, CO, CO2, and H2O. The model builds on previously proposed concepts for methane formation via intermediate precursor generation and a “two-region” description of the graphite microstructure. These concepts have been extended to include intermediate precursor-containing steps for the formation of CO, CO2, and H2O, and the breakup of CH4 by the incident ions. Model predictions of the flux and energy dependence of the CH4, CO, and CO2 yields were generally in good agreement with experimental results for the H+→C and O+→C reactions. For the O+-H+→C reaction, the model agrees quite well with the flux ratio dependence of the H2O yield and the corresponding reductions in the CO, CO2, and CH4 yields.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
