Performance and characterization of a [PtMo6]/MgO catalyst: The catalytic activity for NO-CO reactions and structural analysis by EXAFS

Keiichi Tomishige, Yosuke Nagasawa, Uk Lee, Yasuhiro Iwasawa

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16 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1607-1614
Number of pages8
JournalBulletin of the Chemical Society of Japan
Volume70
Issue number7
DOIs
Publication statusPublished - 1997 Aug 29
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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