论文部分内容阅读
在用共沉淀方法制备的 Ce- Fe复合氧化物中 ,加入 VPO催化剂制备复合 VPO催化剂 ;并测试了其结构、氧化还原性能以及催化性能 .实验结果表明 ,Ce- Fe复合氧化物的组成和数量均对复合 VPO催化剂的结构产生较大的影响 ;Ce- Fe复合氧化物的加入 ,提高了复合 VPO催化剂表面低温氧物种的活性 ,降低了晶格氧物种的TPR出峰温度 ;无论在有无气相氧条件下 ,复合 VPO催化剂的晶格氧均有良好的反应催化性能 .
In the Ce-Fe composite oxide prepared by co-precipitation method, the VPO catalyst was added to prepare the composite VPO catalyst, and its structure, redox performance and catalytic performance were tested. The experimental results show that the composition and the amount of Ce-Fe composite oxide All of which have a great influence on the structure of the composite VPO catalyst. The addition of Ce-Fe composite oxide increases the activity of low temperature oxygen species on the surface of the composite VPO catalyst and decreases the TPR peak temperature of the lattice oxygen species. The vapor phase oxygen, the composite VPO catalyst lattice oxygen have a good catalytic reaction performance.