期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 226, 期 -, 页码 1890-1892出版社
ELSEVIER
DOI: 10.1016/S0304-8853(00)01385-8
关键词
magnetic fluids; Raman scattering; spectroscopy; surface structure
Raman spectroscopy is used to investigate surface-coated magnetite nanoparticles (9 nm diameter) dispersed in aqueous medium. In a first sample, the magnetite nanoparticle is coated with dextran. In a second sample the magnetite nanoparticle, is double-coated with a dodecanoic layer following an ethoxylated polyalcohol layer. The Raman measurements were focused on the typical intra-molecular OH-stretching mode chemiosorbed at the nanoparticle surface. The data are discussed in terms of the suppression of the symmetric and asymmetric hydrogen bonded mode in both samples. (C) 2001 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据