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Selective CO oxidation over ceria supported CuO catalysts

机译:二氧化铈负载的CuO催化剂上的选择性CO氧化

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摘要

The effect of preparation method and pretreatment on the characteristic properties and selective CO oxidation activities of 50/50 CuO/CeO_2, 25/25/50 CuO/Co_3O_4/CeO_2 and 5/95 CuO/CeO_2 catalysts was investigated. Catalysts were characterized by BET surface area measurement, N_2 physisorption, SEM micrographs and X-ray diffraction. The selective oxidation reaction in H_2 rich stream was carried out between the 110 ℃ and 210 ℃ temperatures. The 5/95 CuO/CeO_2 catalysts gave the best CO conversion and selectivity result. The 5/95 CuO/CeO_2 catalyst calcined at 700 ℃ protected its activity and selectivity at 200 ℃ during 24 h.
机译:研究了制备方法和预处理对50/50 CuO / CeO_2、25 / 25/50 CuO / Co_3O_4 / CeO_2和5/95 CuO / CeO_2催化剂的特性和选择性CO氧化活性的影响。通过BET表面积测量,N_2物理吸附,SEM显微照片和X射线衍射对催化剂进行表征。在110℃至210℃的温度下进行富H_2物流的选择性氧化反应。 5/95 CuO / CeO_2催化剂具有最佳的CO转化率和选择性。在700℃下煅烧的5/95 CuO / CeO_2催化剂在24h内能保护其活性和选择性(200℃)。

著录项

  • 来源
    《Materials Chemistry and Physics.》 |2009年第3期|496-501|共6页
  • 作者单位

    Gazi University, Institute of Science and Technology. Department of Advanced Technologies, 06570, Maltepe Ankara, Turkey;

    Gazi University, Faculty of Engineering and Architecture, Department of Chemical Engineering, 06570, Maltepe Ankara, Turkey;

    Gazi University, Faculty of Engineering and Architecture, Department of Chemical Engineering, 06570, Maltepe Ankara, Turkey;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CuO-CeO_2; selective CO oxidation; catalysis;

    机译:CuO-CeO_2;选择性CO氧化;催化;

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