摘要
采用Polyol合成法,以1,2—十六烷二醇为还原剂,乙酰丙酮钴(Ⅱ)和乙酰丙酮铁(Ⅱ)为前驱体,以三嵌段共聚物PEO-PPO-PEO为表面活性剂成功合成了PEO-PPO-PEO包裹的CoFe_2O_4纳米复合颗粒.通过透射电子显微镜(TEM)和X射线衍射(XRD)对其微观形貌、尺寸大小、粒径分布和纳米结构进行了研究.高斯拟合表明CoFe_2O_4纳米颗粒的粒径分布呈双峰分布的正态分布曲线.粒径的双峰分布预期为纳米复合颗粒带来新的性质.
PEO-PPO-PEO coated CoFe_2O_4 composite nanoparticles were successfully synthesized by one-pot polyol process using 1,2-hexadecanediol as a reducting reagent,Co（acac）_2and Fe（acac）_2as precursors,biocompatible tri-block copolymer poly（ethylene glycol）-block-poly（propylene glycol）-block-poly（ethylene glycol）（PEO-PPO-PEO）as a surfactant.The morphology,nanostructure,particle size and size distribution of the prepared nanoparticles were investigated by transmission electron microscopy（TEM）and X-ray diffraction（XRD）.Gaussian function analysis demonstrated a bimodal particle size distribution for the nanoparticles.
出处
《化学研究》
CAS
2016年第6期760-762,778,共4页
Chemical Research
基金
河南省高等学校重点科研项目(16A150002)
