Table 3 Fit results of EXAFS data of anatase TiO2 powder, Ti–FS, H2O2–Ti–FS, Pt/Ti–FS, and H2O2-Pt/Ti–FS at the Ti K edge.
From: Dispersion and stability mechanism of Pt nanoparticles on transition-metal oxides
Specimen | T ( °C) | Ti–O(1) | Ti–O(2) | Ti–Ti(1) | Ti–Ti(2) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | d (Å) | σ2 (Å2) | N | d (Å) | σ2 (Å2) | N | d (Å) | σ2 (Å2) | N | d (Å) | σ2 (Å2) | ||
Anatase TiO2 | RT | 2.2(3) | 1.859(5) | 0.003(1) | 4.3(5) | 1.964(5) | 0.003(1) | 4.0(3) | 3.044(5) | 0.006(1) | 4.0(3) | 3.791(5) | 0.006(1) |
Ti–FS | RT | 3.7(7) | 1.946(8) | 0.010(1) | 2(1) | 3.01(1) | 0.013(1) | ||||||
500 | 3.2(7) | 1.884(8) | 0.007(1) | 2(1) | 2.96(2) | 0.019(4) | |||||||
RTc | 3.2(7) | 1.903(8) | 0.005(1) | 2(1) | 3.01(1) | 0.014(2) | |||||||
H2O2–Ti–FS | RT | 1.6(7) | 2.17(1) | 0.005(1) | 3.2(7) | 1.988(8) | 0.005(1) | 2.8(7) | 3.33(1) | 0.008(1) | |||
Pt/Ti–FS | RT | 1.6(4) | 1.816(5) | 0.003(1) | 3.2(8) | 1.993(5) | 0.003(1) | 3(1) | 3.00(1) | 0.012(1) | 3(1) | 3.94(1) | 0.009(1) |
250 | 1.6(4) | 1.815(4) | 0.003(1) | 3.6(8) | 1.994(7) | 0.003(1) | 3(1) | 3.00(1) | 0.010(1) | 3(1) | 3.76(4) | 0.020(7) | |
H2O2-Pt/Ti–FS | RT | 1.6(4) | 1.973(5) | 0.010(1) | 3.2(8) | 1.982(5) | 0.010(1) | 3(1) | 2.99(2) | 0.014(2) | 4(1) | 3.94(2) | 0.017(4) |
250 | 1.6(4) | 1.943(5) | 0.012(1) | 3.6(8) | 1.952(8) | 0.012(1) | 3(1) | 2.90(1) | 0.010(1) | 4(1) | 3.71(1) | 0.009(2) | |
