Table 3
Temperature of desorption peaks in experiments E11 (Fig. 1c, heating rate = 1 K/min) and E10 (Fig. 1b, heating rate = 2 K/min).
| Desorption | Temperature (K) | |
|
|
||
| peak | E11 | E10 |
|
|
||
| CO multilayer | 29.2 | 29.0 |
|
|
||
| CO | 38.2 | 35.9 |
| monolayer | 54.7 | 49.8 |
|
|
||
| CO2 | 83.2 | 82.5 |
|
|
||
| NH3 | 98.7 | ~95.9 |
|
|
||
| CH3OH | 140.0 | 146.5 |
|
|
||
| volcano | 158.0 | 159.6 |
|
|
||
| co-desorption w/ H2O | 162.5 | 166.5 |
|
|
||
| H2O | 167.7 | 171.5 |
Notes. Temperature of the ammonia desorption peak in E10 (Fig. 1b) is not well constrained due to the shape of the curve. Temperatures of volcano and co-desorption peaks are approximate, since they do not coincide exactly for all the species.
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