TY - JOUR
T1 - Tin-Platinum catalysts interactions on titania and silica
AU - Nava, N.
AU - Del Angel, P.
AU - Salmones, J.
AU - Baggio-Saitovitch, E.
AU - Santiago, P.
N1 - Funding Information:
J. S thank to the national Polytechnic Institute for financial support (CGPI –IPN-20060460).
PY - 2007/9/30
Y1 - 2007/9/30
N2 - Pt-Sn was supported on titania and silica, and the resulting interactions between the components in prepared samples and the resulting interactions between the components before and after treatment with hydrogen were characterized by Mössbauer spectroscopy, X-ray diffraction, Rietveld refinement, high-resolution transmission electron microscopy (HRTEM) and catalytic tests data. Results show the presence of Pt and SnO 2 after calcinations, and Pt 3 Sn, PtSn and PtSn 3 after reduction. Rietveld analysis shows that some Ti 4+ are replaced by Sn 4+ atoms in the titania structure. Finally, HRTEM and the practically absence of activity observed confirms that metallic platinum is encapsulated.
AB - Pt-Sn was supported on titania and silica, and the resulting interactions between the components in prepared samples and the resulting interactions between the components before and after treatment with hydrogen were characterized by Mössbauer spectroscopy, X-ray diffraction, Rietveld refinement, high-resolution transmission electron microscopy (HRTEM) and catalytic tests data. Results show the presence of Pt and SnO 2 after calcinations, and Pt 3 Sn, PtSn and PtSn 3 after reduction. Rietveld analysis shows that some Ti 4+ are replaced by Sn 4+ atoms in the titania structure. Finally, HRTEM and the practically absence of activity observed confirms that metallic platinum is encapsulated.
KW - HRTEM
KW - Mössbauer spectroscopy
KW - Platinum-tin catalysts
KW - Pt-Sn interactions on titania and silica
UR - http://www.scopus.com/inward/record.url?scp=34548241433&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2007.05.072
DO - 10.1016/j.apsusc.2007.05.072
M3 - Artículo
SN - 0169-4332
VL - 253
SP - 9215
EP - 9220
JO - Applied Surface Science
JF - Applied Surface Science
IS - 23
ER -