INVESTIGADORES
SANTORI Gerardo Fabian
artículos
Título:
DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
Autor/es:
RAMALLO-LÓPEZ, J. M; SANTORI, G. F.; CASELLA, M.L; SIRI, G.J.; REQUEJO, F. G.; FERRETTI O.A.
Revista:
Activity Report LNLS
Editorial:
Brazilian Synchrotron Light Laboratory
Referencias:
Lugar: Campinas; Año: 2005 p. 1 - 2
ISSN:
1518-0204
Resumen:
For the monometallic sample the only feature from which some information can be taken in the Pt L3 absorption spectra is the intensity of the white line. The reduction of the Pt atoms is clearly seen during the treatment through the decrease of the white line intensity, but a lost of resolution is observed. Because of the low statistic of the experiment, the EXAFS part of the spectra does not give any useful information. In the case of the bimetallic sample, no evidence of the formation of the alloy can be observed, even from the XANES part of the spectra.
