巯基功能化离子液体辅助制备单晶金纳米粒子链

Simple preparation strategy for thiol-functionalized ionic liquid-driven synthesis of single crystalline gold nanoparticle chains at room temperature

文中采用巯基功能化离子液体作为稳定剂、硼氢化钠作为还原剂的湿化学制备方法,在室温条件下制备出单晶金纳米粒子链。根据紫外-可见吸收光谱、透射电子显微镜和X射线衍射结构表征说明产物是链状的单晶纳米金。

The present work reports the facile fabrication and hypothetical growth mechanism of gold nanoparticle （NP） chains consisting of single crystalline gold NPs surrounded by a capping layer of 1-methyl-3- （2＇ -mercaptoacetoxyethyl） imidazolium chloride （thiol-functionalized ionic liquid, TFIL）. The materials obtained were characterized by UV -Vis, TEM, and XRD. The experimental results show that the product is single-crystalline gold nanochains with a preferential growth direction along the Au （111 ） plane.