• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >One-pot electrochemical synthesis of polydopamine coated magnetite nanoparticles
【24h】

One-pot electrochemical synthesis of polydopamine coated magnetite nanoparticles

机译：一锅法电化学合成聚多巴胺包覆的磁铁矿纳米粒子

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Herein a facile and versatile one step synthesis of magnetite nanoparticles coated with polydopamine is described. Magnetite nanoparticles are synthesized electrochemically by electrooxidation of iron in an aqueous medium in the presence of dopamine. The oxidative conditions and alkaline pH involved in the synthesis favor the self-polymerization of dopamine that adheres at the surface of the magnetic nanoparticles in a simultaneous process. It is shown that the size of the magnetite nanoparticles as well as the polydopamine coating can be controlled by varying the synthetic approach that is, adding dopamine at the beginning of the electrosynthesis, in the middle or at the end of the process. The particle size of the core varies between a few nanometers and 25 nm while the shell can reach thicknesses of up to similar to 5 nm. The obtained hybrid nanoparticles were characterized by thermogravimetric analysis (TGA), infrared spectroscopy (FTIR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). In addition, the magnetic measurements of the different obtained materials were carried out showing a variety of magnetic behaviors depending on the synthetic procedure.
机译：本文描述了涂覆有聚多巴胺的磁铁矿纳米颗粒的简便且通用的一步合成。磁铁矿纳米粒子是通过在水介质中多巴胺存在下电氧化铁来电化学合成的。合成中涉及的氧化条件和碱性pH值有利于在同时进行的过程中粘附在磁性纳米颗粒表面的多巴胺的自聚合。已经表明，可以通过改变合成方法来控制磁铁矿纳米颗粒以及聚多巴胺涂层的尺寸，该合成方法是在电合成的开始，过程的中间或结束时添加多巴胺。核的粒径在几纳米到25 nm之间变化，而壳的厚度可达5 nm。通过热重分析（TGA），红外光谱（FTIR），X射线衍射（XRD）和透射电子显微镜（TEM）对获得的杂化纳米颗粒进行表征。另外，根据合成方法，对获得的不同材料进行了磁测量，显示出各种磁行为。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号