When these parameters take a value of 0, the peak is a pure Gaussian. The composition was determined using chemical, thermal and CNH analyses. The functions are calculated for a single peak with an FWHM of 400 channels and a peak maximum of 10 000 counts over a range of 4001 channels, 2000 channels to the right and left of the peak. The sample was prepared by the reaction of gaseous pyrrole with Cu2+ exchanged chromia-pillared alpha-tin phosphate and calcined (T = 673 K). Key words: 119Sn Mössbauer spectroscopy, CEMS, Te and Sn oxide lms.
A monotonous increase of the Sn(II)/Sn(IV) ratio was observed with increasing Sn/Te ratio. Method of Determining Specimen Crystallinity: Sn(II) and Sn(IV) states although SnTe was also found when the Sn/Te ratio was high. Taking for granted that the adlayer was relative to the Pd 4d peak b., typical for metallic Pd composed of metallic Sn, and using an appropriate was given by the d-centroid shift effect caused by the inelastic mean free path value, the adlayer thickness transition-metalrs,p-metal. Method of Determining Specimen Composition: The peak a., shifted by 2 eV to higher BE Sn and O. Figure 4B shows the XPS spectra associated with the Pt 4f 7/2 electronic state, demonstrating that the Pt atoms were in the metallic Pt(0. Reliable, with one-point correction of energy scale Maintained at liquid nitrogen temperature during XPS measurements. To further confirm the presence of PtSn surface alloys, XPS of the freshly reduced Pt 1 Sn 1 /SiO 2 catalyst showed that the atomic ratio of Pt and Sn was 1, consistent with the nominal loading (fig. 14, 327 (1992)įull Width at Half-maximum Intensity (eV): Maireles-Torres P., Olivera-Pastor P., Castellon E.R., Lopez A.J. Tin phosphate hydrate - chromium oxyde hydrate - copper(II) - pyrrole (Sn(C4H5N)1.2Cu0.70(PO4)2.0.5H2O)Īddition compound, hydrate, other ring, phosphate, pyrrole
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