An Overview of the Semi-Empirical Kinetic Model of the O⁺-H⁺→C Reaction System

We present an overview of a semi-empirical kinetic model of chemical reaction product formation due to simultaneous irradiation of carbon by O⁺ and H⁺ symbolically represented by O⁺-H⁺→C. The model was developed in conjunction with our experimental studies of the O⁺-H⁺→C and the O⁺-H⁺→C/B irradiation cases; C/B represents boron-doped graphite. Model predictions were made for flux and energy dependence, and generally good agreement with experimental results has been seen for both single-species cases: H⁺→C and O⁺→C. For the O⁺-H⁺→C reaction, the model agrees quite well with the flux ratio-dependence of the H₂O yield, the resulting CO and CO₂ yield reductions, and the CH₄ yield reduction.