Simple synthesis of mesoporous carbon with magnetic nanoparticles embedded in carbon rods

被引：114

作者：

Lee, J

Jin, SM

Hwang, Y

Park, JG

Park, HM

Hyeon, T ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Chem & Biol Engn, Natl Creat Res Initiat Ctr Oxide Nanocrystalline, Seoul 151744, South Korea

[2] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea

[3] Korea Res Inst Stand & Sci, New Mat Evaluat Ctr, Taejon 305600, South Korea

来源：

CARBON | 2005年 / 43卷 / 12期

关键词：

porous carbon; carbonization; BET surface area; magnetic properties; particle size;

D O I：

10.1016/j.carbon.2005.05.005

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：

Magnetically separable ordered mesoporous carbon containing magnetic nanoparticles embedded in the carbon walls was synthesized using a simple synthetic procedure. The resulting magnetically separable mesoporous carbon was denoted as M-OMC (magnetically separable ordered mesoporous carbon) poly(pyrrole) with residual Fe2+ ions in the mesoporous channel was converted to carbon material containing superparamagnetic nanoparticles. The size of the magnetic nanoparticles obtained was restricted by the channel size of the SBA-15 silica template, which resulted in the generation of superparamagnetic nanoparticles embedded in the carbon rods. The blocking temperature of M-OMC is 110 K. Pore size and textural property of M-OMC is similar to that of hexagonally ordered mesoporous carbon fabricated using SBA-15 silica as a template. The saturation magnetization of MOMC is ca. 30.0 emu/g at 300 K, high enough for magnetic separation. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2536 / 2543

页数：8

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