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首页> 外文期刊>Applied Physics Letters >Real-time observation of CO oxidation reaction on lr(111) surface at 33 ms resolution by means of wavelength-dispersive near-edge x-ray absorption fine structure spectroscopy
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Real-time observation of CO oxidation reaction on lr(111) surface at 33 ms resolution by means of wavelength-dispersive near-edge x-ray absorption fine structure spectroscopy

机译：通过波长色散近边缘x射线吸收精细结构光谱实时观察lr（111）表面上CO氧化反应的33 ms分辨率

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摘要

The CO oxidation reaction on Ir(111) is observed by the near-edge x-ray absorption fine structure (NEXAFS) spectroscopy in the soft x-ray region. A continuous data acquisition at 33 ms real-time resolution is realized for a single event of the reaction without the repetition, by adopting the wavelength-dispersive NEXAFS technique. The time evolution of the coverages for atomic O and molecular CO is quantitatively estimated during the reaction. The obtained activation energy is significantly larger than that on Pt(111).
机译：通过在软X射线区域中的近边缘X射线吸收精细结构（NEXAFS）光谱观察到Ir（111）上的CO氧化反应。通过采用波长色散NEXAFS技术，对于单个反应事件，无需重复即可实现33 ms实时分辨率的连续数据采集。在反应过程中定量估计了原子O和分子CO的覆盖时间。所获得的活化能明显大于Pt（111）上的活化能。

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  • 来源
    《Applied Physics Letters》 |2011年第7期|p.074104.1-074104.3|共3页
  • 作者

    Kenta Amemiya; Yuka Kousa; Shuichi Nakamoto; Taiga Harada; Shogo Kozai; Masaaki Yoshida; Hitoshi Abe; Ryohei Sumii; Masako Sakamaki; Hiroshi Kondoh;

  • 作者单位

    Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan;

    Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan,Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan;

    Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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  • 入库时间 2022-08-18 03:18:08

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