PREPARATION OF Au/SULFONATED POLYSTYRENE CATALYSTS FOR LOW-TEMPERATURE CO OXIDATION  

作　　者：Shi-hua Wu Xiu-cheng Zheng Wei-ping Huang Shou-min Zhang Wei Wei Department of Chemistry, Nankai University Tianjin 300071, China 

出　　处：《Chinese Journal of Polymer Science》2001年第5期503-507,共5页高分子科学（英文版）

基　　金：This project is supported by the Natural Science Foundation of Tianjin (No. 983603611)

摘　　要：Supported Au catalysts for low-temperature CO oxidation were prepared by solvated metal atom impregnation (SMAI) and conventional impregnation (Cl). X-ray photoelectron spectroscopy (XPS) investigations indicated that the elemental gold in all the samples was in the metallic state, XRD measurements showed that the mean diameters of Au particles prepared by SMAI were smaller than those prepared by Cl with the same gold content. Catalytic tests showed that the SMAI catalyst had higher CO oxidation activity than the CI catalyst with the same compositions. Both SMAI and Cl catalysts exhibited high activity in low temperature CO oxidation. Full CO conversion was obtained at 323-383K.Supported Au catalysts for low-temperature CO oxidation were prepared by solvated metal atom impregnation (SMAI) and conventional impregnation (Cl). X-ray photoelectron spectroscopy (XPS) investigations indicated that the elemental gold in all the samples was in the metallic state, XRD measurements showed that the mean diameters of Au particles prepared by SMAI were smaller than those prepared by Cl with the same gold content. Catalytic tests showed that the SMAI catalyst had higher CO oxidation activity than the CI catalyst with the same compositions. Both SMAI and Cl catalysts exhibited high activity in low temperature CO oxidation. Full CO conversion was obtained at 323-383K.

关 键 词：CO oxidation gold catalysts solvated metal atom impregnations conventional impregnation sulfonated polystyrene 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]