Self-assembly of Co nanoplatelets into spheres: Synthesis and characterization

被引:123
作者
Hou, YL [1 ]
Kondoh, H [1 ]
Ohta, T [1 ]
机构
[1] Univ Tokyo, Sch Sci, Dept Chem, Tokyo 1130033, Japan
关键词
D O I
10.1021/cm050409t
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Uniform Co spherical assemblies were prepared via a facile hydrothermal reduction approach in the presence of surfatctants with a yield of 98%. The assembled nanostructures were composed of ordered nanoplatelets with a thickness of similar to 20 nm, as characterized by scanning electronic microscopy (SEM), transmission electronic microscopy (TEM), and high-resolution TEM (HRTEM). This material exhibits ferromagnetic characteristics and has a high surface area, showing potential applications for catalysts and other related nanodevices.
引用
收藏
页码:3994 / 3996
页数:3
相关论文
共 52 条
[1]  
Bertotti G., 1998, Hysteresis in Magnetism
[2]   Evaporation-induced self-assembly: Functional nanostructures made easy [J].
Brinker, CJ .
MRS BULLETIN, 2004, 29 (09) :631-640
[3]   Nanoengineering of inorganic and hybrid hollow spheres by colloidal templating [J].
Caruso, F ;
Caruso, RA ;
Möhwald, H .
SCIENCE, 1998, 282 (5391) :1111-1114
[4]   Higher-order organization by mesoscale self-assembly and transformation of hybrid nanostructures [J].
Cölfen, H ;
Mann, S .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (21) :2350-2365
[5]   Colloidosomes: Selectively permeable capsules composed of colloidal particles [J].
Dinsmore, AD ;
Hsu, MF ;
Nikolaides, MG ;
Marquez, M ;
Bausch, AR ;
Weitz, DA .
SCIENCE, 2002, 298 (5595) :1006-1009
[6]   General synthesis of mesoporous spheres of metal oxides and phosphates [J].
Dong, AG ;
Ren, N ;
Tang, Y ;
Wang, YJ ;
Zhang, YH ;
Hua, WM ;
Gao, Z .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (17) :4976-4977
[7]   Unprecedented crystalline super-lattices of monodisperse cobalt nanorods [J].
Dumestre, F ;
Chaudret, B ;
Amiens, C ;
Respaud, M ;
Fejes, P ;
Renaud, P ;
Zurcher, P .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (42) :5213-5216
[8]   SYNTHESIS AND CHARACTERIZATION OF ANISOMETRIC COBALT NANOCLUSTERS [J].
GIBSON, CP ;
PUTZER, KJ .
SCIENCE, 1995, 267 (5202) :1338-1340
[9]   Size-controlled synthesis of nickel nanoparticles [J].
Hou, Y ;
Kondoh, H ;
Ohta, T ;
Gao, S .
APPLIED SURFACE SCIENCE, 2005, 241 (1-2) :218-222
[10]   Inorganic nanocrystal self-assembly via the inclusion interaction of ß-cyclodextrins:: Toward 3D spherical magnetite [J].
Hou, Y ;
Kondoh, H ;
Shimojo, M ;
Sako, EO ;
Ozaki, N ;
Kogure, T ;
Ohta, T .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (11) :4845-4852