A novel process from cobalt nanowire to Co3O4 nanotube

被引:111
作者
Li, T [1 ]
Yang, SG [1 ]
Huang, LS [1 ]
Gu, BX [1 ]
Du, YW [1 ]
机构
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
关键词
D O I
10.1088/0957-4484/15/11/018
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Cobalt oxide (CO3O4) nanotubes were synthesized by calcining cobalt nanowires embedded in an anodic alumina template (AAT) in air. The morphologies and phases of the nanowires/nanotubes were studied by transmission electron microscope (TEM) and x-ray diffraction (XRD) respectively. A hypothesis of the tube formation process is presented and illustrated by experimental results. According to the experimental results, it is concluded that competition between the oxidation and the evaporation of cobalt nanocrystals plays a crucial role in the formation of such tube-like nanostructures Of CO3O4.
引用
收藏
页码:1479 / 1482
页数:4
相关论文
共 17 条
[1]   Magnetic anisotropy in carbon encapsulated Co/CoO "lines" with large exchange [J].
Bi, H ;
Li, SD ;
Jiang, XQ ;
Du, YW ;
Yang, CZ .
PHYSICS LETTERS A, 2003, 307 (01) :69-75
[2]   THERMODYNAMICAL SIZE EFFECT AND THE STRUCTURE OF METALLIC CLUSTERS [J].
BOREL, JP .
SURFACE SCIENCE, 1981, 106 (1-3) :1-9
[3]   Preparation and photoluminescence of alumina membranes with ordered pore arrays [J].
Du, Y ;
Cai, WL ;
Mo, CM ;
Chen, J ;
Zhang, LD ;
Zhu, XG .
APPLIED PHYSICS LETTERS, 1999, 74 (20) :2951-2953
[4]   Room-temperature ultraviolet nanowire nanolasers [J].
Huang, MH ;
Mao, S ;
Feick, H ;
Yan, HQ ;
Wu, YY ;
Kind, H ;
Weber, E ;
Russo, R ;
Yang, PD .
SCIENCE, 2001, 292 (5523) :1897-1899
[5]   Nano-size effects in chemical sensor materials [J].
Kobayashi, T ;
Ando, M .
ELECTROCHEMISTRY, 2001, 69 (11) :872-875
[6]   ORDERED METAL NANOHOLE ARRAYS MADE BY A 2-STEP REPLICATION OF HONEYCOMB STRUCTURES OF ANODIC ALUMINA [J].
MASUDA, H ;
FUKUDA, K .
SCIENCE, 1995, 268 (5216) :1466-1468
[7]   Formation mechanism of alumina nanotube array [J].
Mei, YF ;
Wu, XL ;
Shao, XF ;
Huang, GS ;
Siu, GG .
PHYSICS LETTERS A, 2003, 309 (1-2) :109-113
[8]   Inorganic nanotubes [J].
Rao, CNR ;
Nath, M .
DALTON TRANSACTIONS, 2003, (01) :1-24
[9]   Magnetism of Fe, Co and Ni nanowires in self-assembled arrays [J].
Sellmyer, DJ ;
Zheng, M ;
Skomski, R .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (25) :R433-R460
[10]   Controlled assembly of monodisperse epsilon-cobalt-based nanocrystals [J].
Sun, S ;
Murray, CB ;
Doyle, H .
ADVANCED HARD AND SOFT MAGNETIC MATERIALS, 1999, 577 :385-398