Cinar Simge, Gündül Güngör, Mavis Bora, Colak Uner
Kimya Mühendisliği Bölümü, Orta Doğu Teknik Universitesi, Ankara 06531, Turkey.
J Nanosci Nanotechnol. 2011 Apr;11(4):3669-79. doi: 10.1166/jnn.2011.3812.
In the present study, silver nanoparticles were produced by hydrazine hydrate and oleylamine/oleic acid systems in order to investigate the effects of reducing agents with different strengths on the reduction mechanism. Particle size and size distribution of silver particles produced by slow reducing system were studied in detail by using transmission electron microscopy (TEM), X-Ray Diffraction (XRD), photon correlation spectroscopy (PCS), and surface plasmon resonance spectroscopy (SPR). Finally, reduction mechanism by oleylamine and oleic acid system was clarified and particles with average diameter of 2.7 nm were produced. Nano-sized particles were then placed at the center of the polymer fibers by coaxial electrospinning and nanocable like structures were produced. SEM and TEM were used for the characterization of these cables.
在本研究中,通过水合肼和油胺/油酸体系制备了银纳米颗粒,以研究不同强度还原剂对还原机理的影响。利用透射电子显微镜(TEM)、X射线衍射(XRD)、光子相关光谱(PCS)和表面等离子体共振光谱(SPR)详细研究了由缓慢还原体系制备的银颗粒的粒径和粒径分布。最后,阐明了油胺和油酸体系的还原机理,并制备出平均直径为2.7 nm的颗粒。然后通过同轴静电纺丝将纳米尺寸的颗粒置于聚合物纤维的中心,制备出类似纳米电缆的结构。使用扫描电子显微镜(SEM)和透射电子显微镜(TEM)对这些电缆进行表征。