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首页> 外文期刊>RSC Advances >Influence of Ce2O3 and CeO2 promoters on Pd/MgO catalysts in the dry-reforming of methane
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Influence of Ce2O3 and CeO2 promoters on Pd/MgO catalysts in the dry-reforming of methane

机译：Ce2O3和CeO2助催化剂对甲烷干重整中Pd / MgO催化剂的影响

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摘要

In this study, the conversion of methane and CO2 to synthesis gas using dry reforming over Pd/MgO catalysts using different concentrations of Ce3+ and Ce4+ was investigated. Moreover, the factors that contribute to the deposition of carbon during the co-precipitation method were examined. The catalysts used in this study were prepared using K2CO3 as the precipitant. The characterization of the catalysts was performed using state-of-the-art techniques such as XRD, XPS, FT-IR, TPR-H-2, BET, TEM, FE-SEM, and TGA. It was found that with the addition of Ce promoter, the Pd/Mg0.85Ce015O catalyst exhibited a high level of activity (CH4: 54%, and CO2: 74%) with excellent stability. The results of this analysis also revealed the outstanding anti-coking activity of the reduced catalyst with low Pd metal. In addition, we studied the catalytic performance and stability of the produced catalysts.
机译：在这项研究中，研究了使用不同浓度的Ce3 +和Ce4 +在Pd / MgO催化剂上进行干重整，将甲烷和CO2转化为合成气。此外，研究了在共沉淀法中有助于碳沉积的因素。本研究中使用的催化剂是使用K2CO3作为沉淀剂制备的。催化剂的表征使用最新技术进行，例如XRD，XPS，FT-IR，TPR-H-2，BET，TEM，FE-SEM和TGA。发现通过添加Ce助催化剂，Pd / Mg0.85Ce015O催化剂表现出高水平的活性（CH 4：54％，CO 2：74％），并且具有优异的稳定性。该分析的结果还揭示了具有低Pd金属的还原催化剂的优异的抗焦化活性。此外，我们研究了所生产催化剂的催化性能和稳定性。

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