文献类型：期刊文献

中文题名：Metallic iron nanoparticles:Flame synthesis,characterization and magnetic properties

英文题名：Metallic iron nanoparticles:Flame synthesis,characterization and magnetic properties

作者：Yunfeng Li[1];Yanjie Hu[1];Guangjian Huang[2];Chunzhong Li[1]

机构：[1]Key Laboratory for Ultrafine Materials of Ministry of Education,School of Materials Science and Engineering,East China University of Science & Technology;[2]Department of Surgery,Huashan Hospital,Fudan University

年份：2013

卷号：11

期号：4

起止页码：460

中文期刊名：Particuology

外文期刊名：颗粒学报（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2013_2014】；

基金：supported by the National Natural Science Foundation of China(21106038,51173043,21136006, 81071994);the Special Projects for Nanotechnology of Shanghai (11nm0500800,11nm0500200);the Basic Research Program of Shanghai(11JC1403000);the Special Research Fund for the Doctoral Program of Higher Education of China(20110074110010);the Shanghai Shuguang Scholars Program(10SG31);the Fundamental Research Funds for the Central Universities

语种：英文

中文关键词：Iron NPsFSPReducing flameMagnetic properties

外文关键词：Iron NPsFSPReducing flameMagnetic properties

摘要：Metallic iron （Fe） nanoparticles （NPs） with a typical core-sheU structure have been prepared by a simple and continuous flame spray pyrolysis （FSP） method, which are stabilized by the corresponding Fe304 shell with a thickness of 4-6 nm. The size of metallic Fe cores is about 30-80 nm. The core-shell structured iron NPs show an air stability as long as one month as a result of the protection of oxide shell. Through the control of the residence time of materials in flame and flame atmosphere, metallic Fe and iron oxides are obtained, showing a better external magnetic field responsibility. It is concluded that the evolution of morphology and composition of flame-made magnetic NPs could be attributed to the competition mechanism between reduction and oxidation reactions of in situ flame combustion, which offers more choices and better effective design strategy for the synthesis of advanced functional materials via FSP techniques.
Metallic iron （Fe） nanoparticles （NPs） with a typical core-sheU structure have been prepared by a simple and continuous flame spray pyrolysis （FSP） method, which are stabilized by the corresponding Fe304 shell with a thickness of 4-6 nm. The size of metallic Fe cores is about 30-80 nm. The core-shell structured iron NPs show an air stability as long as one month as a result of the protection of oxide shell. Through the control of the residence time of materials in flame and flame atmosphere, metallic Fe and iron oxides are obtained, showing a better external magnetic field responsibility. It is concluded that the evolution of morphology and composition of flame-made magnetic NPs could be attributed to the competition mechanism between reduction and oxidation reactions of in situ flame combustion, which offers more choices and better effective design strategy for the synthesis of advanced functional materials via FSP techniques.