期刊首页 优先出版 当期阅读 过刊浏览 作者中心 关于期刊 English

2014年 第8卷 第3期

摘要

关键词

相关研究

回顶部

《化学科学与工程前沿（英文）》 >> 2014年 第8卷 第3期 doi: 10.1007/s11705-014-1441-y

Influences of spinel type and polymeric surfactants on the size evolution of colloidal magnetic nanocrystals (MFe

1. Department of Chemical Engineering, Quchan University of Advanced Technology, Quchan 94771, Iran.2. Department of Chemistry, Ferdowsi University of Mashhad, Mashhad 91775, Iran.3. School of Chemical Engineering, The University of Adelaide, SA 5005, Australia

录用日期： 2014-09-22 发布日期： 2014-10-11
HTML18 PDF 1 收藏 0

下一篇 上一篇

摘要

Two types of polymeric surfactants, PEG and PVP , were used for the preparation of magnetic ferrite MFe O (M= Mn, Fe) colloidal nanocrystals using a solvothermal reaction method. The effect of spinel type effect on the size evolution of various nanoparticles was investigated. It was found that Fe O nanoparticles exhibited higher crystalinity and size evolution than MnFe O nanoparticles with use of the two surfactants. It is proposed that this observation is due to fewer tendencies of surfactants on the surface of Fe O building blocks nanoparticles than MnFe O . Less amounts of surfactant or capping agent on the surface of nanoparticles lead to the higher crystalibity and larger size. It is also suggested that the type of spinel (normal or inverted spinel) plays a key role on the affinity of the polymeric surfactant on the surface of building blocks.

相关研究