CO2 was a minor product in the reactions with both FiberForm and vitreous carbon (Figures and). However, CO2 signal persists to a higher temperature in FiberForm (Figure ) compared to vitreous carbon, and two TD-slow processes, as with CO, were required to fit the CO2 TOF distributions from FiberForm, unlike the TOF distributions from vitreous carbon which returned to zero and required only a prompt thermal (MB) fit . As the signals were very low above 1023 K, the reactive dynamics of CO2 are not discussed in this article.