Preparation, stability and two-dimensional ordered arrangement of gold nanoparticles capped by surfactants with different chain lengths  

作　　者：周学华 江龙 李津如 刘春艳 

出　　处：《Science China Chemistry》2002年第4期358-364,共7页中国科学（化学英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 29733110).

摘　　要：Gold nanoparticles modified with C10NH2, C12NH2, C16NH2 and C18NH2 respectively have been prepared by the reverse micelle method. Nanoparticles stability and their two-dimensional (2D) ordered arrangement were studied by UV-Vis absorption spectra and LB technique. The factors, such as the chain length and the size distribution of particles, which affect the 2D ordered arrangement formation, are discussed. Experimental results show that the longer the chain length of surfactants capping the gold nanoparticles, the more stable the nanoparticles, and the more ordered 2D arrangement of gold nanoparticles.Gold nanoparticles modified with C10NH2, C12NH2, C16NH2 and C18NH2 respectively have been prepared by the reverse micelle method. Nanoparticles stability and their two-dimensional (2D) ordered arrangement were studied by UV-Vis absorption spectra and LB technique. The factors, such as the chain length and the size distribution of particles, which affect the 2D ordered arrangement formation, are discussed. Experimental results show that the longer the chain length of surfactants capping the gold nanoparticles, the more stable the nanoparticles, and the more ordered 2D arrangement of gold nanoparticles.

关 键 词：SURFACTANTS GOLD NANOPARTICLES 2D ORDERED arrangement. 

分 类 号：O647[理学—物理化学]