Influence of the addition of Pd and Cu to cobalt catalysts prepared by SMAI for F-T synthesis |
| |
Authors: | Li-hua Yu Shou-min Zhang Xianzhi Guo Da Wang Shu-rong Wang Shi-hua Wu |
| |
Institution: | (1) Department of Chemistry, Nankai University, Tianjin, 300071, China |
| |
Abstract: | The Co-Pd/SiO2 and Co-Cu/SiO2 catalysts were prepared via solvated metal atom impregnation (SMAI) method and investigated for the Fischer-Tropsch (F-T)
synthesis. The catalysts contained 5wt.% Co and a weight ratio of Pd (or Cu) to Co of 1/30. XPS indicated that Co, Pd and
Cu were in metallic state. The results of XPS and magnetic measurements showed that Co and Pd (Cu) were alloyed. The Co particles
on the catalysts were very highly dispersed and they displayed superparamagnetic behavior. FT-IR indicated that the electrons
shifted from Cu and Pd to Co. Catalytic tests showed that CO hydrogenation rates followed the order Pd-Co > Cu-Co > Co.
|
| |
Keywords: | Pd-Co catalyst Pd-Cu catalyst F-T synthesis Solvated metal atom impregnation |
本文献已被 SpringerLink 等数据库收录! |