X射线光电子能谱
透射电子显微镜
溴化物
扫描电子显微镜
胶体金
纳米颗粒
抗坏血酸
水溶液
化学
八面体
过氧化氢
相(物质)
肺表面活性物质
结晶学
无机化学
化学工程
核化学
材料科学
纳米技术
有机化学
晶体结构
食品科学
复合材料
工程类
生物化学
作者
Cuong Cao,Sungho Park,Sang Jun Sim
标识
DOI:10.1016/j.jcis.2008.03.031
摘要
We report a seedless synthetic method of gold octahedral nanoparticles in an aqueous phase. Eight facets with {111} crystalline structures of octahedral nanoparticles could be formed in an aqueous medium when the gold salt was reduced by ascorbic acid at room temperature in the presence of cetyltrimethylammonium bromide as a shape-inducing agent, and hydrogen peroxide as a reaction promoter. The growth kinetics and surface crystalline structures were characterized by UV–vis spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy.
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