Structure and reactivity of model cluster-derived PtFe/SiO2 catalysts

Michael D. Amiridis; Attilio Sianil; Oleg S. Alexeev; Burjor Captain; Richard D. Adams

Structure and reactivity of model cluster-derived PtFe/SiO2 catalysts

Michael D. Amiridis, Attilio Sianil, Oleg S. Alexeev, Burjor Captain, Richard D. Adams

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English (US)
Title of host publication	233rd ACS National Meeting, Abstracts of Scientific Papers
State	Published - Dec 28 2007
Externally published	Yes
Event	233rd ACS National Meeting - Chicago, IL, United States Duration: Mar 25 2007 → Mar 29 2007

Publication series

Name	ACS National Meeting Book of Abstracts
ISSN (Print)	0065-7727

Other

Other	233rd ACS National Meeting
Country	United States
City	Chicago, IL
Period	3/25/07 → 3/29/07

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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title = "Structure and reactivity of model cluster-derived PtFe/SiO2 catalysts",

abstract = "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.",

author = "Amiridis, {Michael D.} and Attilio Sianil and Alexeev, {Oleg S.} and Burjor Captain and Adams, {Richard D.}",

year = "2007",

month = dec,

day = "28",

language = "English (US)",

isbn = "084127438X",

series = "ACS National Meeting Book of Abstracts",

booktitle = "233rd ACS National Meeting, Abstracts of Scientific Papers",

note = "233rd ACS National Meeting ; Conference date: 25-03-2007 Through 29-03-2007",

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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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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 -