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Fitting EXAFS data inversion

Figure 6.17 EXAFS data of a reduced Pt/AEO catalyst. Full lines are measured data dotted lines represent fits. Left magnitude of a -weighted Fourier transform of the range 1,9 Figure 6.17 EXAFS data of a reduced Pt/AEO catalyst. Full lines are measured data dotted lines represent fits. Left magnitude of a -weighted Fourier transform of the range 1,9<k< 13.X A-1 middle-, imaginary part of the Fourier transform, and (right) inverse transform of the first coordination shell, along with the theoretical spectrum of Pt nearest neighbors (from Kip et al. 411).
If the shell contains two types of atoms (e.g., two types of nearest neighbor atoms in the first coordination shell), the inverse transform corresponds to a sum of two terms in Eq. 4.3 multiplied by Kn. In either case, the parameters in Eqs. 4.3 and 4.4 are determined by fitting the product of Kn and the EXAFS function of Eq. 4.3 (with the appropriate number of terms) to the inverse transform function which is derived from the EXAFS data. The fitting is accomplished by means of an iterative least squares procedure (19,28-30). [Pg.62]

See other pages where Fitting EXAFS data inversion is mentioned: [Pg.158]    [Pg.222]    [Pg.175]    [Pg.104]    [Pg.158]    [Pg.587]    [Pg.158]    [Pg.1928]    [Pg.171]    [Pg.203]    [Pg.794]    [Pg.171]    [Pg.632]   
See also in sourсe #XX -- [ Pg.62 , Pg.64 , Pg.65 , Pg.66 , Pg.72 , Pg.74 , Pg.100 , Pg.101 ]



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Data fitting

EXAFS

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