Hollow CoNi alloy submicrospheres consisting of CoNi nanoplatelets: Facile synthesis and magnetic properties

被引：28

作者：

Li, Hao ^{[1
]}

Liao, Jinyun ^{[1
]}

Feng, Yufa ^{[1
]}

Yu, Shiwen ^{[1
]}

Zhang, Xibin ^{[1
]}

Jin, Zhen ^{[1
]}

机构：

[1] Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 67卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Alloy; Magnetic materials; Microstructure; Nanoplatelets; NI; NICKEL; NANOCRYSTALS; NUCLEATION; GROWTH;

D O I：

10.1016/j.matlet.2011.10.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic alloy micro/nanostructures with controllable size and morphology have drawn intensive attention due to their interesting physicochemical properties and potential applications in micro/nanodevices. In this letter. CoNi hollow submicrospheres consisting of CoNi nanoplatelets with a thickness of ca. 10 nm have been successfully synthesized via a facile wet-chemical approach free of any template or surfactant. Scanning electron microscope (SEM) and transmission electron microscope (TEM) images indicate that the diameter and shell thickness of the as-prepared hollow submicrosphere are ca. 600 nm and 200 nm, respectively. Elemental maps demonstrate that Co and Ni elements are distributed homogeneously in the CoNi hollow submicrosphere. Magnetic measurement reveals that the hollow submicrospheres display ferromagnetic behaviour with a coercivity of 109.5 Oe. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：346 / 348

页数：3

共 24 条

[1] CoNi Bimetallic Nanofibers by Electrospinning: Nickel-Based Soft Magnetic Material with Improved Magnetic Properties [J].

Barakat, Nasser A. M. ;

Khalil, Khalil A. ;

Mahmoud, Ibrahim H. ;

Kanjwal, Muzafar A. ;

Sheikh, Faheem A. ;

Kim, Hak Yong .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (37) :15589-15593

[2] Synthesis of Co-50Ni nanocrystals obtained by a modified polyol method [J].

Bregado-Gutierrez, Julio ;

Saldivar-Garcia, Annando J. ;

Lopez, Hugo F. .

MATERIALS LETTERS, 2008, 62 (6-7) :939-942

[3] Magnetic and hardness properties of nanostructured Ni-Co films deposited by a nonaqueous electroless method [J].

Chow, GM ;

Ding, J ;

Zhang, J ;

Lee, KY ;

Surani, D ;

Lawrence, SH .

APPLIED PHYSICS LETTERS, 1999, 74 (13) :1889-1891

[4] Magnetic micromechanical structures based on CoNi electrodeposited alloys [J].

Cojocaru, P. ;

Magagnin, L. ;

Gomez, E. ;

Valles, E. ;

Liu, F. ;

Carraro, C. ;

Maboudian, R. .

JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 2010, 20 (12)

[5] Morphology, structure and magnetic properties of cobalt-nickel films obtained from acidic electrolytes containing glycine [J].

Ergeneman, O. ;

Sivaraman, K. M. ;

Pane, S. ;

Pellicer, E. ;

Teleki, A. ;

Hirt, A. M. ;

Baro, M. D. ;

Nelson, B. J. .

ELECTROCHIMICA ACTA, 2011, 56 (03) :1399-1408

[6] Nanoalloys: From theory to applications of alloy clusters and nanoparticles [J].

Ferrando, Riccardo ;

Jellinek, Julius ;

Johnston, Roy L. .

CHEMICAL REVIEWS, 2008, 108 (03) :845-910

[7] Magnetic Field-Induced Solvothermal Synthesis of One-Dimensional Assemblies of Ni-Co Alloy Microstructures [J].

Hu, Ming Jun ;

Lin, Bin ;

Yu, Shu Hong .

NANO RESEARCH, 2008, 1 (04) :303-313

[8] High yield synthesis of bracelet-like hydrophilic Ni-Co magnetic alloy flux-closure nanorings [J].

Hu, Ming-Jun ;

Lu, Yang ;

Zhang, Sen ;

Guo, Shi-Rui ;

Lin, Bin ;

Zhang, Meng ;

Yu, Shu-Hong .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (35) :11606-+

[9] EFFECT OF ALLOYING ON CO HYDROGENATION ACTIVITY OVER SIO2-SUPPORTED CO-NI ALLOY CATALYSTS [J].

ISHIHARA, T ;

HORIUCHI, N ;

INOUE, T ;

EGUCHI, K ;

TAKITA, Y ;

ARAI, H .

JOURNAL OF CATALYSIS, 1992, 136 (01) :232-241

[10] Microwave absorption of nanoscale CoNi powders [J].

Kurlyandskaya, G. V. ;

Bhagat, S. M. ;

Luna, C. ;

Vazquez, M. .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (10)

← 1 2 3 →