TY - JOUR
T1 - Performance and characterization of a [PtMo6]/MgO catalyst
T2 - The catalytic activity for NO-CO reactions and structural analysis by EXAFS
AU - Tomishige, Keiichi
AU - Nagasawa, Yosuke
AU - Lee, Uk
AU - Iwasawa, Yasuhiro
PY - 1997/8/29
Y1 - 1997/8/29
N2 - The catalytic property of a [PtMo6]/MgO catalyst prepared by using a [PtMo6O24]8- precursor for NO-CO reactions and a structural analysis by means of Pt L3- and Mo K-edge EXAFS spectroscopy was studied. The catalytic activity of the bimetallic ensemble catalyst appeared due to the incorporation of Pt ions into the MgO surface, where Pt4+ ions substituted Mg2+ ions in the first layer of the MgO surface. It seems that the NO-CO reaction proceeded on the Pt sites embedded in the MgO surface by a redox mechanism, whereas metallic Pt particles on MgO were inactive under the present reaction conditions, characterized by an in-situ EXAFS analysis.
AB - The catalytic property of a [PtMo6]/MgO catalyst prepared by using a [PtMo6O24]8- precursor for NO-CO reactions and a structural analysis by means of Pt L3- and Mo K-edge EXAFS spectroscopy was studied. The catalytic activity of the bimetallic ensemble catalyst appeared due to the incorporation of Pt ions into the MgO surface, where Pt4+ ions substituted Mg2+ ions in the first layer of the MgO surface. It seems that the NO-CO reaction proceeded on the Pt sites embedded in the MgO surface by a redox mechanism, whereas metallic Pt particles on MgO were inactive under the present reaction conditions, characterized by an in-situ EXAFS analysis.
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U2 - 10.1246/bcsj.70.1607
DO - 10.1246/bcsj.70.1607
M3 - Article
AN - SCOPUS:0030841746
VL - 70
SP - 1607
EP - 1614
JO - Bulletin of the Chemical Society of Japan
JF - Bulletin of the Chemical Society of Japan
SN - 0009-2673
IS - 7
ER -