. 2015 Oct 22;6:8675. doi: 10.1038/ncomms9675

Table 1. Best-fit parameters obtained for the 5 wt% Pt/Al₂O₃ sample measured in situ at room temperature and after reduction at 573 K.

Element	CN^*	R (Å)^†	DW (2σ²/(Å⁻²)^‡
Pt	8	2.75	0.014
O	1.9	2.00	0.007

EXAFS, extended X-ray absorption fine structure.

E_F=−10.31=the edge position relative to the vacuum zero (Fermi energy).

R%=33.37=(∫[χ^T−χ^E]k³dk/[χ^E]k³dk) × 100%, where χ^T and χ^E are the theoretical and experimental EXAFS and k is the photoelectron wave vector.

The Debye–Waller factor=2σ², where σ is the root mean square internuclear separation.

Other parameters: Attentuation factor (AFAC), related to the proportion of electrons performing an EXAFS-type scatter on absorption, is 0.875. Structural data were obtained by fitting the EXAFS in k space in the range: k=2.5–16.5 Å⁻¹.

^*Coordination number (±ca. 10% stated value).

^†Distance of scatterer atom from central atom (±ca. 1.5% stated value).

^‡Debye–Waller factor.

Table 1. Best-fit parameters obtained for the 5 wt% Pt/Al2O3 sample measured in situ at room temperature and after reduction at 573 K.

Table 1. Best-fit parameters obtained for the 5 wt% Pt/Al₂O₃ sample measured in situ at room temperature and after reduction at 573 K.