Hollow spheres to nanocups:: Tuning the morphology and magnetic properties of single-crystalline α-Fe2O3 nanostructures

被引:85
作者
Jagadeesan, Dinesh [1 ,2 ]
Mansoori, Uzma [1 ,2 ]
Mandal, Pranab [3 ]
Sundaresan, Athinarayanan [3 ]
Eswaramoorthy, Muthusamy [1 ,2 ]
机构
[1] Jawaharlal Nehru Ctr Adv Sci Res, Nanomat & Catalysis Lab, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India
[2] Jawaharlal Nehru Ctr Adv Sci Res, DST Unit Nanosci, Bangalore 560064, Karnataka, India
[3] Jawaharlal Nehru Ctr Adv Sci Res, Magnetism & Superconduct Lab, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India
关键词
crystal engineering; hematite; magnetic properties; nanostructures; template synthesis;
D O I
10.1002/anie.200802626
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A bottom-up approach has been used to tune the morphology of single-crystalline hematite from hollow spheres to nanocups. The mechanism involves the formation of nanocups through buckling of the spheres, similar to a deflated ball (see picture). As the shape changes, there is a drastic change in magnetic properties. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7685 / 7688
页数:4
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