Monodisperse MPt (M = Fe, Co, Ni, Cu, Zn) Nanoparticles Prepared from a Facile Oleylamine Reduction of Metal Salts

被引：158

作者：

Yu, Yongsheng ^{[1
,3
]}

Yang, Weiwei ^{[1
,2
]}

Sun, Xiaolian ^{[1
]}

Zhu, Wenlei ^{[1
]}

Li, X. -Z. ^{[3
]}

Sellmyer, D. J. ^{[3
]}

Sun, Shouheng ^{[1
]}

机构：

[1] Brown Univ, Dept Chem, Providence, RI 02912 USA

[2] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Heilongjiang, Peoples R China

[3] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

来源：

NANO LETTERS | 2014年 / 14卷 / 05期

关键词：

Nanoparticles; oleylamine reduction; MPt alloy; alloy structure; nanomagnetism; catalysis; ONE-STEP SYNTHESIS; MAGNETIC-PROPERTIES; NIXPT1-X NANOPARTICLES; NANOCRYSTALS; NANORODS; SIZE; NANOSTRUCTURES; NANOWIRES; CATALYSIS; ALLOY;

D O I：

10.1021/nl500776e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a simple, yet general, approach to monodisperse MPt (M = Fe, Co, Ni, Cu, Zn) nanoparticles (NPs) by coreduction of M(acac)(2) and Pt(acac)(2) (acac = acetylacetonate) with oleylamine at 300 degrees C. In the current reaction condition, oleylamine serves as the reducing agent, surfactant, and solvent. As an example, we describe in details the synthesis of 9.5 nm CoPt NPs with their compositions controlled from Co37Pt63 to Co69Pt31. These NPs show composition-dependent structural and magnetic properties. The unique oleylamine reduction process makes it possible to prepare MPt NPs with their physical properties and surface chemistry better rationalized for magnetic or catalytic applications.

引用

页码：2778 / 2782

页数：5

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