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Chemical composition of the surface of the 3Ga and Pt3Ga catalysts as measured by XPS.[a]
| Catalyst | Al (wt %) | O (wt %) | Ga (wt %) | Pt (wt %) |
|---|---|---|---|---|
| 3Ga | 54.60 | 41.29 | 4.11 | 0 |
| Pt3Ga | 54.20 | 39.79 | 4.67 | 1.33 |
The concentrations of the elements present at the surface are expressed in wt %, which allows for a more clear comparison between the surface composition and the catalyst composition as a whole.
