Preparation and characterization of Ni/Co bimetallic nano-clusters  

作　　者：Jinzhang Gao, Fei Guan, Yongjun Ma, and Jingwan KangInstitute of Chemistry, Northwest Normal University, Lanzhou 730070, China. 

出　　处：《Journal of University of Science and Technology Beijing》2003年第4期46-49,共4页北京科技大学学报（英文版）

基　　金：This work was supported in part by the project of KJCXGC-01 of Northwest Normal University; the Joint Program between the Educational Committee and the Economic Trade Committee of Gansu Province, China (CX-04).]

摘　　要：Ni/Co bimetallic nano-cluters have been prepared from the aqueous solution byreducing their corresponding metal salts under suitable conditions. The experimental conditionsincluding the type and concentration of protective agent, feeding order and the pH of the solutionthat influence the average particle size have been studied in detail. Transmission electronmicroscopy (TEM) indicates that the shape of those bimetallic nano-cluster particles is spheroid.The alloy structure has been shown by X-ray powder diffraction (XRD). The X-ray photoelectronspectroscopic (XPS) data have confirmed that the nickel and cobalt in the bimetallic nano-clustersare in the zero-valence state.Ni/Co bimetallic nano-cluters have been prepared from the aqueous solution byreducing their corresponding metal salts under suitable conditions. The experimental conditionsincluding the type and concentration of protective agent, feeding order and the pH of the solutionthat influence the average particle size have been studied in detail. Transmission electronmicroscopy (TEM) indicates that the shape of those bimetallic nano-cluster particles is spheroid.The alloy structure has been shown by X-ray powder diffraction (XRD). The X-ray photoelectronspectroscopic (XPS) data have confirmed that the nickel and cobalt in the bimetallic nano-clustersare in the zero-valence state.

关 键 词：Ni/Co alloy chemical synthesis nano-cluster CHARACTERIZATION 

分 类 号：TG146.1[一般工业技术—材料科学与工程]