Table 3.
EXAFS fitting parameters for SrO and all XSr/Al2O3 catalysts.
|
Sample / Sr Loading (wt %) |
XANES Energy, keV |
CNSr−O (±10 %) |
R (Å) (±0.01) |
σ2*103 (Å2) |
Eo Shift (eV) |
|---|---|---|---|---|---|
|
SrO |
– |
6 |
2.60 |
– |
– |
|
Sr(NO3)2 |
16.1150 |
– |
– |
– |
– |
|
0.1 |
16.1155 |
4.4 |
2.58 |
4.0 |
−4.5 |
|
0.2 |
16.1154 |
4.4 |
2.57 |
4.0 |
−4.7 |
|
0.3 |
16.1155 |
4.3 |
2.57 |
4.0 |
−4.4 |
|
0.4 |
16.1155 |
4.5 |
2.58 |
4.0 |
−4.5 |
|
0.5 |
16.1155 |
4.3 |
2.58 |
4.0 |
−4.7 |
|
1 |
16.1155 |
4.2 |
2.58 |
4.0 |
−3.8 |
|
2 |
16.1155 |
3.8 |
2.57 |
4.0 |
−3.7 |
|
5 |
16.1154 |
3.7 |
2.57 |
4.0 |
−3.3 |
|
10 |
16.1154 |
3.9 |
2.58 |
4.0 |
−3.7 |