Research Article
Experimental Study on the Deactivating Effect of KNO3, KCl, and K2SO4 on Nanosized Ceria/Titania SCR Catalyst
Table 3
Peak areas of the fitted O 1s and Ce 3d XPS spectra.
| | Sample | Peak area of O 1s | Peak area of Ce 3d | | Oα | Oβ | Proportion of Oβ | u3 | Whole spectrum | Proportion of u3 |
| | Ce/TiO2 | 130585 | 19085 | 12.75% | 5283 | 77795 | 6.79 | | Ce/TiO2-KNO3-0.25 | 135300 | 17500 | 11.45% | 6186 | 73603 | 8.40 | | Ce/TiO2-KCl-0.25 | 128985 | 14285 | 9.97% | 6783 | 80462 | 8.43 | | Ce/TiO2-K2SO4-0.25 | 146085 | 21501 | 12.83% | 9547 | 89451 | 10.67 |
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