Table 4 Estimated heats of adsorption and activation energies, relative to E3f.
Parameter | Sample 1 | Sample 2 | Sample 3 |
|---|---|---|---|
\(\Delta {H_{{O_*}}}\) | -1.0 | -1.8 | -0.80 |
\(\Delta {H_{N{O_*}}}\) | -0.21 | -2.6 × 10− 6 | -0.49 |
\(\Delta {H_{N{O_{2*}}}}\) | -6.7 × 10− 3 | -3.4 × 10− 6 | -3.0 × 10− 4 |
\(\Delta {H_{{N_2}{O_*}}}\) | -0.11 | -4.8 × 10− 7 | -5.1 × 10− 2 |
\(\Delta {H_{N{H_{3*}}}}\) | -0.28 | -1.7 × 10− 7 | -0.71 |
\(\Delta {H_{{H_2}{O_*}}}\) | -7.6 × 10− 6 | -2.9 × 10− 2 | -3.6 × 10− 5 |
\(E{a_{k3,f}}\) | 1.0 | 1.0 | 1.0 |
\(E{a_{k3,r}}\) | 0.36 | 0.56 | 0.38 |
\(E{a_{k6}}\) | 0.76 | 1.4 | 0.24 |
\(E{a_{k8}}\) | -6.4 × 10− 2 | -0.15 | -3.5 × 10− 2 |
\(E{a_{k9}}\) | 0.10 | 0.19 | -0.24 |
\(E{a_{k10}}\) | -0.12 | -1.8 × 10− 2 | -0.12 |
\(E{a_{k11}}\) | 0.28 | 0.53 | 0.34 |
\(E{a_{k12}}\) | -0.29 | 0.25 | 0.26 |
\(E{a_{k14}}\) | 0.28 | 0.22 | 0.58 |
\(E{a_{k15}}\) | -2.0 | -0.44 | 4.3 |
