Block-copolymer-templated synthesis of iron, iron-cobalt, and cobalt-nickel alloy nanoparticles

被引：33

作者：

Abes, JI

Cohen, RE ^{[1
]}

Ross, CA

机构：

[1] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

[2] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

[3] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2003年 / 23卷 / 05期

基金：

美国国家科学基金会;

关键词：

block copolymers; magnetic nanocomposites; metal alloy nanoparticles; STEM;

D O I：

10.1016/j.msec.2003.08.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have produced, by thermal decomposition of organometallic complexes in a bulk film of poly(styrene-b-2-vinyl pyridine (P(S-b2VP)), nonagglomerated iron, iron-cobalt, and cobalt-nickel alloy nanoparticles. The particles are patterned on the nanoscale: they reside within the P2VP domains of the block copolymer morphology. These results are made possible by the selective sequestration of organometallic complexes into these domains in amounts sufficient to nucleate and grow substantial quantities of nanoparticles, some of which are large enough to show non-zero coercivity at room temperature. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：641 / 650

页数：10

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