Structure-sensitivity of the Dynamics of CO Oxidation on Pd (111), Pd (110) and Polycrystalline Pd Surfaces : Infraed Chemiluminescence Study of the Product CO_2

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The infrared chemiluminescence technique has been applied to the catalytic oxidation of CO on Pd(111), Pd(110) and polycrystalline Pd surfaces. The product CO<SUB>2</SUB> molecules were vibrationally and rotationally excited in all cases. However, the vibrational energy states of CO<SUB>2</SUB> were different among these three surfaces. This result means that the structure of the activated CO<SUB>2</SUB> complex (i.e., the dynamics of CO oxidation) depends on the surface structures. In addition, the steady-state reaction rates of CO oxidation as a function of surface temperature were also different among the Pd surfaces. These results show that the CO oxidation on Pd is structure-sensitive not only in the kinetics but also in the dynamics.

収録刊行物

  • Chemistry letters

    Chemistry letters 1996(3), 227-228, 1996-03-05

    The Chemical Society of Japan

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各種コード

  • NII論文ID(NAID)
    10003739206
  • NII書誌ID(NCID)
    AA00603318
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    03667022
  • データ提供元
    CJP書誌  J-STAGE 
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