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首页> 外文会议>International Symposium on Cluster and Nanostructure Interfaces, Oct 25-28, 1999, Richmond, Virginia, USA >SYNTHESIS AND SELF-ORGANIZATION OF GOLD NANOPARTICLES INTO SUPERLATTICES FROM CTAB REVERSE MICELLES
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SYNTHESIS AND SELF-ORGANIZATION OF GOLD NANOPARTICLES INTO SUPERLATTICES FROM CTAB REVERSE MICELLES

机译：CTAB反胶束将金纳米颗粒合成并自组装成超晶格

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摘要

Gold nanoparticles were prepared by the reduction of HAuCl_4 in CTAB/octane+1-butanol/H_2O reverse micelle system using NaBH_4 as reducing agent. These gold nanoparticles were characterized by UV/Vis absorption spectrum and TEM with electron diffraction. Various ligands, such as alkylthiols with different chain length and shape, trioctylphosphine, pyridine were used to passivate the gold nanoparticles for the purpose of self―organization. Nearly monodispersed gold colloids were obtained when using dodecanethiol C_(12)H_(25)SH as ligand for Au particles. Self-organization of these gold nanoparticles into 1D, 2D and 3D superlattices was observed on the carbon-coated copper grid by TEM.
机译：使用NaBH_4作为还原剂，通过在CTAB /辛烷+ 1-丁醇/ H_2O反胶束体系中还原HAuCl_4制备金纳米颗粒。这些金纳米颗粒通过UV / Vis吸收光谱和带电子衍射的TEM表征。各种配体，例如具有不同链长和形状的烷硫醇，三辛基膦，吡啶被用于钝化金纳米颗粒，以实现自组织。当使用十二烷硫醇C_（12）H_（25）SH作为Au粒子的配体时，获得了几乎单分散的金胶体。通过TEM在涂碳的铜网上观察到这些金纳米粒子自组织为1D，2D和3D超晶格。

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