Caroline Paris, Hadi Dib, Charf Eddine Bounoukta, E. Genty, C. Poupin, S. Siffert, R. Cousin
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引用次数: 0
摘要
本研究旨在强调通过层状双氢氧化物路线制备混合氧化物对于减少不良气体污染物的重要性。研究人员制备了具有相似或不同化学计量学的不同系列 Cu/Al/Ce 混合氧化物,并对其在甲苯和/或 CO 氧化反应中的应用进行了比较。催化剂的合成方法会影响材料的性质和氧化反应的活性。由 LDH 制备的混合氧化物在氧化反应中的高活性得益于 Cu/Ce 的协同作用。一氧化碳/甲苯混合物中一氧化碳的存在不影响甲苯的总氧化,甲苯也不影响一氧化碳在低温下的总氧化转化。最有效的催化材料(Cu6Al1.2Ce0.8)在甲苯总氧化过程中具有较长的寿命稳定性,并能抵抗混合物中的 CO 中毒。
Benefit of LDH-Derived Mixed Oxides for the Co-Oxidation of Toluene and CO Exhausted from Biomass Combustion
The proposed study is devoted to highlighting the importance of mixed oxides preparation through the layered double hydroxide route for undesirable gas pollutants abatement. Different series of Cu/Al/Ce mixed oxides with similar or different stoichiometrics were prepared and compared for toluene and/or CO oxidation. Catalyst synthesis methods influence material properties and activity for oxidation reactions. The high activity for the oxidation reactions of mixed oxides derived from LDH is explained by the Cu/Ce synergy. The presence of CO in the CO/toluene mixture does not affect the total toluene oxidation, and the toluene does not affect the total oxidation of CO conversion at low temperatures. The most effective catalytic material (Cu6Al1.2Ce0.8) presents a long lifetime stability for total toluene oxidation and resistance to CO poisoning in mixtures.