Solvothermal reduction synthesis and magnetic properties of polymer protected iron and nickel nanocrystals

被引：57

作者：

Hou, YL ^{[1
]}

Gao, S ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earths Mat Chem & Appl, Beijing 100871, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 365卷 / 1-2期

关键词：

metal nanoparticles; solvothermal synthesis; magnetism;

D O I：

10.1016/S0925-8388(03)00651-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanoscale Fe and Ni particles were prepared by a mild solvothermal reduction route in the presence of polymers. The metal nanocrystals were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), infrared spectroscopy (IR) and X-ray photoelectron spectroscopy (XPS). TEM and XRD results show that Fe and Ni nanocrystals have an average size ca. 65 and 15 nm, respectively. The polymers on the surface of nanocrystals prevent iron and nickel from being oxidized in air. Magnetic measurements indicate that Fe nanocrystals are soft ferromagnets, while Ni nanocrystals show a superparamagnetic behaviour. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：112 / 116

页数：5

共 19 条

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