Shape-influenced magnetic properties of CoO nanoparticles

被引：9

作者：

Kundu, Subrata ^{[1
,2
]}

Nelson, A. J. ^{[3
]}

McCall, S. K. ^{[3
]}

van Buuren, Tony ^{[3
]}

Liang, Hong ^{[1
]}

机构：

[1] Texas A&M Univ, College Stn, TX 77843 USA

[2] CSIR Cent Electrochem Res Inst CSIR CECRI, Electrochem Mat Sci ECMS Div, Karaikkudi 630006, Tamil Nadu, India

[3] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Condensed Matter & Mat Div, Livermore, CA 94550 USA

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2013年 / 15卷 / 05期

关键词：

Magnetic nanoparticles; CoO nanostructures; Paramagnetic; Ferromagnetic; Electronic structures; COBALT OXIDE; CONTROLLED GROWTH; AQUEOUS-SOLUTION; GOLD; NANOCRYSTALS; PHASE; MONODISPERSE; NANOWIRES; HYDROXIDE; NANORODS;

D O I：

10.1007/s11051-013-1587-4

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using a wet chemical approach, CoO nanospheres, nanorings, nanoflowers, and nanowires of different sizes were generated. Among those, nanorings show ferromagnetic behavior below 6 K while the nanospheres remain paramagnetic. X-ray photoelectron spectroscopy for Co 2p, 3p, and 3s core-levels indicates the paramagnetic high-spin Co(II) electronic configuration. This finding reveals the optical, electronic, and magnetic behavior of CoO nanoparticles (NPs) that opens new opportunities for future applications as catalysts precursors for making pigments, lithium-ion battery materials, or as solid-state sensors as anisotropy source for magnetic recording.

引用

页数：13

共 50 条

[1] Semiconductor clusters, nanocrystals, and quantum dots [J].

Alivisatos, AP .

SCIENCE, 1996, 271 (5251) :933-937

[2] Synthesis of Cobalt Oxide Nanoparticles/Fibres in Alcoholic Medium using γ-ray Technique [J].

Athawale, Anjali A. ;

Majumdar, Megha ;

Singh, Hema ;

Navinkiran, K. .

DEFENCE SCIENCE JOURNAL, 2010, 60 (05) :507-513

[3] Cobalt particle size effects in the Fischer-Tropsch reaction studied with carbon nanofiber supported catalysts [J].

Bezemer, GL ;

Bitter, JH ;

Kuipers, HPCE ;

Oosterbeek, H ;

Holewijn, JE ;

Xu, XD ;

Kapteijn, F ;

van Dillen, AJ ;

de Jong, KP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (12) :3956-3964

[4] Formation of monodisperse and shape-controlled MnO nanocrystals in non-injection synthesis: Self-focusing via [J].

Chen, Yongfen ;

Johnson, Eric ;

Peng, Xiaogang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (35) :10937-10947

[5]

Coey J M. D., 2010, Magnetism and Magnetic Materials, P464, DOI DOI 10.1017/CBO9780511845000

[6]

Dinega DP, 1999, ANGEW CHEM INT EDIT, V38, P1788, DOI 10.1002/(SICI)1521-3773(19990614)38:12<1788::AID-ANIE1788>3.0.CO

[7]

2-2

[8] Preparation and characterization of CoO used as anodic material of lithium battery [J].

Do, JS ;

Weng, CH .

JOURNAL OF POWER SOURCES, 2005, 146 (1-2) :482-486

[9] Room temperature ferromagnetism in CoO nanoparticles obtained from sonochemically synthesized precursors [J].

Dutta, Dimple P. ;

Sharma, Garima ;

Manna, P. K. ;

Tyagi, A. K. ;

Yusuf, S. M. .

NANOTECHNOLOGY, 2008, 19 (24)

[10]

Feldmann C, 2001, ANGEW CHEM INT EDIT, V40, P359, DOI 10.1002/1521-3773(20010119)40:2<359::AID-ANIE359>3.0.CO

← 1 2 3 4 5 →