Study on Catalysts with Rhodium Loading on Different Cerium-Zirconium Mixed Oxides
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第2期
论文作者：Zhao Yunkun Lu Jun Zhang Aimin Zhu Zengzan Li Bing
Key words：mixed oxides; Rh catalyst; oxygen storage capabilities; rare earths;
Abstract: The catalysts with Rh loading on different cerium-zirconium mixed oxides were characterized by BET, H2-TPR and OSC. The effects of different cerium-zirconium mixed oxides on catalytic performance and thermal stability of Rh loaded catalyst were studied. The results show that: (1) Rh can enhance cerium-zirconium mixed oxides OSC and catalytic reaction rates; (2) cerium-zirconium mixed oxides with high Ce contents and low Zr contents are more favorable to the stability of catalysts. Moreover, the contents of CeO2 have important effect on catalysts characteristics, and the addition of some rare earth components, such as La, Pr and Nd also have some influences.
Zhao Yunkun1，Lu Jun1，Zhang Aimin1，Zhu Zengzan1，Li Bing1
(1.Kunming Sino-Platinum Metals Catalyst Co.,Ltd. Kunming 650101, China)
Abstract:The catalysts with Rh loading on different cerium-zirconium mixed oxides were characterized by BET, H2-TPR and OSC. The effects of different cerium-zirconium mixed oxides on catalytic performance and thermal stability of Rh loaded catalyst were studied. The results show that: (1) Rh can enhance cerium-zirconium mixed oxides OSC and catalytic reaction rates; (2) cerium-zirconium mixed oxides with high Ce contents and low Zr contents are more favorable to the stability of catalysts. Moreover, the contents of CeO2 have important effect on catalysts characteristics, and the addition of some rare earth components, such as La, Pr and Nd also have some influences.
Key words:mixed oxides; Rh catalyst; oxygen storage capabilities; rare earths;
【全文内容正在添加中】
