Table 1 EXAFS fitting results of Au L3_edge and Cu K_edge for Au/Cu0 nanocubesa
sample | Center atom | Neighboring atom CN | Bond distance (R, Å) | ||||
|---|---|---|---|---|---|---|---|
Cu | Au | CNtotal | χ (%) | Cu | Au | ||
Au0.02Cu0.98 | Au | 4.73(2) | 6.87(1) | 11.60(2) | 42 | 2.67(9) | 2.82(3) |
Au0.05Cu0.95 | Au | 2.43(1) | 6.55(1) | 8.98(2) | 27 | 2.64(6) | 2.82(3) |
Au0.1Cu0.9 | Au | 2.27(2) | 7.45(1) | 9.72(2) | 23 | 2.69(11) | 2.83(3) |
Au0.5Cu0.5 | Au | 1.46(1) | 7.53(1) | 8.99(1) | 16 | 2.70(1) | 2.81(4) |
Au foil | Au | 0 | 12 | 12 | 0 | 0 | 2.85(2) |
Au0.02Cu0.98 | Cu | 5.85(1) | 0 | 5.85(1) | 0 | 2.54(1) | 0 |
Au0.05Cu0.95 | Cu | 4.92(1) | 0 | 4.92(1) | 0 | 2.54(4) | 0 |
Au0.1Cu0.9 | Cu | 4.14(1) | 0 | 4.14(1) | 0 | 2.53(1) | 0 |
Au0.5Cu0.5 | Cu | 3.96(1) | 0 | 3.96(1) | 0 | 2.53(1) | 0 |
Cu NP | Cu | 6.1(4) | 0 | 6.1(4) | 0 | 2.54(1) | 0 |
Cu foil | Cu | 12 | 0 | 12 | 0 | 2.54(1) | 0 |
