TY - GEN
T1 - Structure and reactivity of model cluster-derived PtFe/SiO2 catalysts
AU - Amiridis, Michael D.
AU - Sianil, Attilio
AU - Alexeev, Oleg S.
AU - Captain, Burjor
AU - Adams, Richard D.
PY - 2007/12/28
Y1 - 2007/12/28
N2 - Supported bimetallic catalysts are widely used in large-scale applications. The limited understanding of the nature of the bimetallic interactions contribute to the difficulty of preparation of stable, highly dispersed, and well-defined bimetallic structures by conventional preparation techniques. Organometallic chemistry provides opportunities to prepare supported catalysts with maximized bimetallic interactions. The goal of this work was to prepare and characterize SiO2-supported Pt-Fe catalysts starting from [Pt5Fe2(COD)2(CO)12], a precursor in which the Pt and Fe are bonded to each other. TPD, EXAFS, and FTIR were used to characterize the surface species after the interaction of [Pt5Fe2(COD)2(CO)12] with SiO2 and to monitor the decarbonylation process that was intended to give highly dispersed and nearly uniform Ptf{Fe clusters. The activity of such species was evaluated for the CO oxidation in presence and absence of H2.
AB - Supported bimetallic catalysts are widely used in large-scale applications. The limited understanding of the nature of the bimetallic interactions contribute to the difficulty of preparation of stable, highly dispersed, and well-defined bimetallic structures by conventional preparation techniques. Organometallic chemistry provides opportunities to prepare supported catalysts with maximized bimetallic interactions. The goal of this work was to prepare and characterize SiO2-supported Pt-Fe catalysts starting from [Pt5Fe2(COD)2(CO)12], a precursor in which the Pt and Fe are bonded to each other. TPD, EXAFS, and FTIR were used to characterize the surface species after the interaction of [Pt5Fe2(COD)2(CO)12] with SiO2 and to monitor the decarbonylation process that was intended to give highly dispersed and nearly uniform Ptf{Fe clusters. The activity of such species was evaluated for the CO oxidation in presence and absence of H2.
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M3 - Conference contribution
AN - SCOPUS:37349052101
SN - 084127438X
SN - 9780841274389
T3 - ACS National Meeting Book of Abstracts
BT - 233rd ACS National Meeting, Abstracts of Scientific Papers
T2 - 233rd ACS National Meeting
Y2 - 25 March 2007 through 29 March 2007
ER -