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首页> 外文期刊>RSC Advances >The ethanol mediated-CeO2-supported low loading ruthenium catalysts for the catalytic wet air oxidation of butyric acid
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The ethanol mediated-CeO2-supported low loading ruthenium catalysts for the catalytic wet air oxidation of butyric acid

机译：乙醇介导的CeO 2 负载的低负载钌催化剂对丁酸的湿法催化氧化

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Two kinds of nano-CeO2-supported low loading Ru catalysts were prepared by ultrasonic-assisted incipient wetness impregnation method and their applications in catalytic wet air oxidation (CWAO) of butyric acid (BA) were investigated. Both of the catalysts were characterized by XRD, XPS, TEM, N2 adsorption–desorption, Raman and H2-TPR. According to the characterization results, compared to Ru/CeO2 catalyst, the active component was well dispersed on the support and the particle sizes were smaller for the Ru/CeO2-A catalyst which was added to some absolute ethanol in the process of preparation. Meanwhile, Ru/CeO2-A catalysts possessed a high active surface area and had a higher Ce3+ and oxygen vacancy content due to the strong interaction between Ru species and CeO2. Therefore, the Ru/CeO2-A catalyst presented higher catalytic activity and the chemical oxygen demand (COD) removal can increase up to 64.05% after 2 h. It had excellent stability and can be reused many times without obvious loss of activity.
机译：超声辅助湿法浸渍法制备了两种纳米CeO 2 负载的低负载Ru催化剂，并将其用于丁酸催化湿式氧化（CWAO）中研究了酸（BA）。 XRD，XPS，TEM，N 2 吸附-解吸，拉曼和H 2 -TPR。根据表征结果，与Ru / CeO 2 催化剂相比，活性组分良好地分散在载体上，Ru / CeO 2 -A催化剂，在制备过程中将其添加到一些无水乙醇中。同时，Ru / CeO 2 -A催化剂具有较高的活性表面积和较高的Ce 3 + 和Ru物种与CeO 2 之间的强相互作用引起了氧空位的增加。因此，Ru / CeO 2 -A催化剂具有较高的催化活性，在2 h后化学需氧量（COD）去除率可提高至64.05％。它具有出色的稳定性，可以重复使用多次，而不会明显丧失活性。

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