Growth and electrochemical properties of single-crystalline V2O5 nanorod arrays

被引:53
作者
Takahashi, K
Limmer, SJ
Wang, Y
Cao, GZ
机构
[1] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
[2] JFE Steel Corp, Steel Res Lab, Chuo Ku, Chiba 2600835, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2005年 / 44卷 / 1B期
关键词
nanorod arrays; single-crystal growth; electrochemical deposition; electrophoretic deposition; lithium intercalation;
D O I
10.1143/JJAP.44.662
中图分类号
O59 [应用物理学];
学科分类号
摘要
Growth and electrochemical properties of single-crystalline vanadium pentoxide (V2O5) nanorod arrays were investigated. Vanadium pentoxide nanorod arrays were grown by electrochemical deposition, surface condensation induced by a pH change and sol electrophoretic deposition. Uniformly sized vanadium oxide nanorods with a length of about 10 Put and diameters of 100 or 200nm were grown over a large area with near-unidirectional alignment. Transmission electron microscopy (TEM) micrographs and electron diffraction patterns Of V2O5 nanorods clearly show the single-crystalline nature of nanorods fabricated via all three growth routes with a growth direction of [010]. The growth mechanisms of single-crystal V2O5 nanorods have been discussed. Electrochemical analysis revealed that nanorod array electrodes possess significantly improved storage capacity and charge/discharge rate with approximately 5 times higher applicable current density than those of sol-gel derived films. Furthermore, for a given current density, the nanorod array electrode can intercalate up to 3.5 times higher concentration of Li+ intercalation. The relationships between electrochemical property, nano- and microstructure, and growth mechanisms have been discussed.
引用
收藏
页码:662 / 668
页数:7
相关论文
共 39 条
  • [1] Study of lithium diffusion in RF sputtered nickel-vanadium mixed oxides thin films
    Artuso, F
    Bonino, F
    Decker, F
    Lourenco, A
    Masetti, E
    [J]. ELECTROCHIMICA ACTA, 2002, 47 (13-14) : 2231 - 2238
  • [2] Cao G., 2004, Nanostructures nanomaterials: synthesis, properties applications
  • [3] Growth of {100} textured diamond films by the addition of nitrogen
    Cao, GZ
    Schermer, JJ
    vanEnckevort, WJP
    Elst, WALM
    Giling, LJ
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 79 (03) : 1357 - 1364
  • [4] CHUN CM, P MICR MICR 1995, P188
  • [5] ON THE DELTA-]GAMMA IRREVERSIBLE TRANSFORMATION IN LI//V2O5 SECONDARY BATTERIES
    COCCIANTELLI, JM
    MENETRIER, M
    DELMAS, C
    DOUMERC, JP
    POUCHARD, M
    BROUSSELY, M
    LABAT, J
    [J]. SOLID STATE IONICS, 1995, 78 (1-2) : 143 - 150
  • [6] Vanadyl ion stability in silica gels
    Devi, PS
    Ganguli, D
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 240 (1-3) : 50 - 54
  • [7] Vanadia gel synthesis via peroxovanadate precursors.: 1.: In situ laser Raman and 51V NMR characterization of the gelation process
    Fontenot, CJ
    Wiench, JW
    Pruski, M
    Schrader, GL
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (49): : 11622 - 11631
  • [8] MORPHOLOGY AND MICROSTRUCTURE IN ELECTROCHEMICAL DEPOSITION OF ZINC
    GRIER, D
    BENJACOB, E
    CLARKE, R
    SANDER, LM
    [J]. PHYSICAL REVIEW LETTERS, 1986, 56 (12) : 1264 - 1267
  • [9] V2O5 nanofibre sheet actuators
    Gu, G
    Schmid, M
    Chiu, PW
    Minett, A
    Fraysse, J
    Kim, GT
    Roth, S
    Kozlov, M
    Muñoz, E
    Baughman, RH
    [J]. NATURE MATERIALS, 2003, 2 (05) : 316 - 319
  • [10] Template-based synthesis of nanomaterials
    Huczko, A
    [J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2000, 70 (04): : 365 - 376