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首页> 外文期刊>Journal of Analytical & Applied Pyrolysis >Production of molybdenum oxide particles with high yield by ultrasonic spray pyrolysis and their catalytic activity toward partial oxidation of n-dodecane
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Production of molybdenum oxide particles with high yield by ultrasonic spray pyrolysis and their catalytic activity toward partial oxidation of n-dodecane

机译：超声喷雾热解法高产率生产氧化钼颗粒及其对正十二烷部分氧化的催化活性

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摘要

Molybdenum oxides (MoO_x) have shown interesting catalytic and electronic properties for various applications in recent years. However, they are typically synthesized via hydrothermal and solvothermal methods that have a low production yield of less than 1 g per batch. In this study, we developed a large-scale production and continuous process of MoO_3 particles by utilizing an ultrasonic spray pyrolysis technology that allows the production rate of MoO_3 particles at 4.5 g/h. The size and phase structure of the MoO_3 particles were significantly affected by the pyrolysis temperature and concentration of precursor solution used. The as-synthesized MoO_3 particles were reduced to MoO_2 particles by H_2 treatment at 700 ℃ for 3 h. Partial oxidation reaction was studied to test the catalytic performance of both the MoO_3 and MoO_2 particles using n-dodecane as a fuel. The MoO_3 particles showed 45.3% of H_2 yield and 74.1% of carbon conversion. After reduction, however, the MoO_2 particles showed 60.8% of H_2 yield and 87.4% of carbon conversion, which shows higher performance than that of commercial MoO_2.
机译：近年来，氧化钼（MoO_x）对各种应用显示出令人感兴趣的催化和电子性能。但是，它们通常是通过水热和溶剂热法合成的，每批次的产量不足1 g，产率很低。在这项研究中，我们利用超声波喷雾热解技术开发了MoO_3颗粒的大规模生产和连续工艺，该技术可使MoO_3颗粒的生产速度达到4.5 g / h。 MoO_3颗粒的尺寸和相结构受热解温度和所用前体溶液浓度的影响很大。在700℃下H_2处理3 h​​，合成的MoO_3颗粒还原为MoO_2颗粒。研究了部分氧化反应，以正十二烷为燃料，测试了MoO_3和MoO_2的催化性能。 MoO_3颗粒的H_2产率为45.3％，碳转化率为74.1％。然而，还原后，MoO_2颗粒的H_2产率为60.8％，碳转化率为87.4％，表现出比工业MoO_2更高的性能。

著录项

  • 来源
    《Journal of Analytical & Applied Pyrolysis》 |2015年第3期|276-283|共8页
  • 作者

    Hanseul Choi; Daeho Kim; Sung Pil Yoon; Jonghee Han; Su Ha; Jinsoo Kim;

  • 作者单位

    Department of Chemical Engineering, Kyung Hee University, 1732 deogyeong-daero, Ciheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea;

    Department of Chemical Engineering, Kyung Hee University, 1732 deogyeong-daero, Ciheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea;

    Fuel Cell Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 136-791, South Korea;

    Fuel Cell Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 136-791, South Korea;

    Department of Chemical Engineering, Kyung Hee University, 1732 deogyeong-daero, Ciheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea,Voiland School of Chemical Engineering and Bioengineering, Washington State University, P.O. Box 642710, Pullman, WA 99164-2710, USA;

    Department of Chemical Engineering, Kyung Hee University, 1732 deogyeong-daero, Ciheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea;

  • 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

    Ultrasonic spray pyrolysis; Molybdenum trioxide (MoO_3); Molybdenum dioxide (MoO_2); Large-scale production and continuous process; Partial oxidation of n-dodecane;

    机译：超声波喷雾热解;三氧化钼（MoO_3）;二氧化钼（MoO_2）;大规模生产和连续过程;正十二烷的部分氧化;
  • 入库时间 2022-08-18 03:01:50

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