采用共沉淀-浸渍法制备了系列催化剂12%CuO/CeO2-Al2O3,将该系列催化剂用于富H2中CO的优先氧化反应。通过XRD、BET、TPR等技术对各催化剂样品的结构和性质进行了表征,考察了Al2O3的含量对CO选择氧化反应的影响。结果表明,添加70%Al2O3催化剂的CO优先氧化性能良好,氧化活性高低与Al2O3的含量有关。
A series of 12wt% CuO/CeO2 -A1203wt% catalysts for preferential CO oxidation were prepared by co - precipitation method. The structures and properties of catalysts were characterized by X - ray diffraction patten, BET surface area measurements and TPR to investigate the influence of A1203 content on the CO selective oxidation reaction. The results showed that content of Al203 had a great impact on the catalytic property. It was found that 12wt% CuO/CeO2 -A120370% catalyst exhibited very good catalytic performance for the PROX reaction related to the Al2 O3 content.