通过简便方法合成FePt纳米棒和纳米线。

Synthesis of FePt nanorods and nanowires by a facile method.

作者信息

Poudyal Narayan, Chaubey Girija S, Nandwana Vikas, Rong Chuan-Bing, Yano Kazuaki, Liu J Ping

机构信息

Department of Physics, University of Texas at Arlington, Arlington, TX 76019, USA.

出版信息

Nanotechnology. 2008 Sep 3;19(35):355601. doi: 10.1088/0957-4484/19/35/355601. Epub 2008 Jul 18.

DOI:10.1088/0957-4484/19/35/355601

PMID:21828852

Abstract

FePt nanorods and nanowires have been synthesized by the reduction of Pt(acac)(2) and the thermal decomposition of Fe(CO)(5) in the presence of solvents/surfactants by simply controlling the sequence of addition of surfactants. The as-synthesized FePt nanorods and nanowires have a face centered cubic structure with average diameter of 3 nm. Length of nanorods and nanowires can be adjusted in the range of 15-150 nm by varying reaction parameters. Nanocrystalline L1(0) FePt phase with coercivity up to 24 kOe was obtained after heat treatments.

摘要

通过简单地控制表面活性剂的添加顺序，在溶剂/表面活性剂存在的情况下，通过还原Pt(acac)₂和热分解Fe(CO)₅合成了FePt纳米棒和纳米线。所合成的FePt纳米棒和纳米线具有面心立方结构，平均直径为3纳米。通过改变反应参数，纳米棒和纳米线的长度可在15 - 150纳米范围内调节。热处理后获得了矫顽力高达24 kOe的纳米晶L1(0) FePt相。