Study of carbon monoxide oxidation on CeO2(111) using ultra accelerated quantum chemical molecular dynamics

Md Khorshed Alam, Farouq Ahmed, Katsuyoshi Nakamura, Ai Suzuki, Riadh Sahnoun, Hideyuki Tsuboi, Michihisa Koyama, Nozomu Hatakeyama, Akira Endou, Hiromitsu Takaba, Carlos A. Del Carpio, Momoji Kubo, Akira Miyamoto

    Research output: Contribution to journalArticlepeer-review

    38 Citations (Scopus)

    Abstract

    Ceria has attracted intensive interest in the past decade because of its vital role in emerging technologies for exhaust gas purification in automobiles. In this study, we have investigated the process of conversion of CO to CO 2 via the creation of an oxygen vacancy on the ceria surface. The study was conducted using a new ultra accelerated quantum chemical molecular dynamics method. Through this simulation, we have demonstrated that a high-energy colliding CO molecule is adsorbed on the ceria, pulling up an O atom from the ceria surface to form a CO2 molecule. This molecular dynamics simulation of CO oxidation has been carried out for the first time using quantum chemical methods.

    Original languageEnglish
    Pages (from-to)7723-7727
    Number of pages5
    JournalJournal of Physical Chemistry C
    Volume113
    Issue number18
    DOIs
    Publication statusPublished - May 7 2009

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Energy(all)
    • Physical and Theoretical Chemistry
    • Surfaces, Coatings and Films

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