The Single Reaction Center Site Model

Decreased values of kj (blue hnes) also increases chain growth parameter a, as it increases the surface coverage of CH, although it decreases the overall consumption Rqq. When is decreased by the same amount as is increased (pink lines), the conversion in the chain growth hmit equals again that of the original parameters (black lines). 

For a surface with a different structure, which causes the relative rate of the CO to CH transformation to increase compared to k and kj, the maximum of Rqq shifts to lower values of higher value of kj. While the chemistry 

The purple line corresponds to increased chain growth rate and decreased rate of termination (Eg = 35 kJ mol and Eg = 

65 kJ mol ), such that simple chain growth limit k k[ ) remains equal to that for black case. (Adapted from Ref [39].) 

Red lines correspond to an initial value (i.e., at Egjjjq =0) of the CO activation energy 

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Figure 16.21 convincingly shows the advantage of the dual reaction center site model over the single reaction center site model at high value of a. This is the condition in which the rate of CO consumption becomes inhibited by the... 

In Figure 16.21, Rq+ and Rqq are compared for single reaction center and dual reaction center site models with the same reaction parameters of Figure 16.16. 

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