Preparation and catalysis of platinum and palladium nanoparticles capped with polyaryl ether trisacetic acid ammonium chloride dendrimer

作者：Zhang W; Du YK; Hua NP; Wang XM; Yang P^*

来源：Chinese Journal of Inorganic Chemistry, 2006, 22(2): 263-267.

• polyaryl ether trisacetic acid ammonium chloride dendrimer
• Pt and Pd nanoparticles
• m-phenoxy benzaldehyde
• catalytic hydrogenation

Nanoparticles of platinum and palladium capped with polyaryl ether trisacetic acid ammonium chloride dendrimer in generation three (Pt-G3-NA and Pd-G3-NA) were prepared by an ethanol reduction method and characterized with UV-Vis, IR, TEM and XRD. The metal nanoparticles obtained are stable both in colloidal solution and in catalytic hydrogenation process since the relative strong interaction among the surface atoms of the nanoparticle and the acetic acid groups of the dendrimer. The catalytic activities of Pt and Pd dendrimer-metal nanoparticles were tested by the hydrogenation of m-phenoxy benzaldehyde. Under an atmospheric pressure of H-2, the conversion of m-phenoxy benzaldehyde was beyond 99 % after 12 It of reaction at 40 degrees C. The activity of catalytic hydrogenation of Pt-Gn-NA was higher than that of Pd-G3-NA at the same reaction conditions.

• 出版日期2006-2
• 单位宿州学院; 苏州大学