X-ray absorption of nanocrystal TiO2

被引:73
作者
Hwu, Y [1 ]
Yao, YD [1 ]
Cheng, NF [1 ]
Tung, CY [1 ]
Lin, HM [1 ]
机构
[1] TATUNG INST TECHNOL,DEPT MAT ENGN,TAIPEI 10451,TAIWAN
来源
NANOSTRUCTURED MATERIALS | 1997年 / 9卷 / 1-8期
关键词
D O I
10.1016/S0965-9773(97)00082-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Soft-X-ray absorption spectroscopy was used to identify the electronic and crystal structure of titanium dioxide in nanocrystalline form prepared by gas condensation. High energy resolution spectra of the Ti 2p absorption edge revealed detailed spectral features identical to those from titanium in anatase. Based on the Ti 2p and O Is absorption spectra, we estimated that the Ti is in +4 valence state and the crystal field splitting of nanocrystal TiO2 is approximately 2.1 eV, slightly smaller than that of bulk TiO2. (C) 1997 Acta Metallurgica Inc.
引用
收藏
页码:355 / 358
页数:4
相关论文
共 11 条
  • [1] [Anonymous], J PHYS CHEM SOLIDS
  • [2] ELECTRON ENERGY-LOSS SPECTROSCOPY (EELS) AND THE ELECTRONIC-STRUCTURE OF TITANIUM-DIOXIDE
    BRYDSON, R
    WILLIAMS, BG
    ENGEL, W
    SAUER, H
    ZEITLER, E
    THOMAS, JM
    [J]. SOLID STATE COMMUNICATIONS, 1987, 64 (04) : 609 - 612
  • [3] CHEN LX, 1994, BNL NATL SYNCHROTRON, pB116
  • [4] THE STRUCTURES OF ANATASE AND RUTILE
    CROMER, DT
    HERRINGTON, K
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1955, 77 (18) : 4708 - 4709
  • [5] L2,3 X-RAY-ABSORPTION EDGES OF D0 COMPOUNDS - K+, CA-2+, SC-3+ AND TI-4+ IN OH (OCTAHEDRAL) SYMMETRY
    DEGROOT, FMF
    FUGGLE, JC
    THOLE, BT
    SAWATZKY, GA
    [J]. PHYSICAL REVIEW B, 1990, 41 (02): : 928 - 937
  • [6] 2P X-RAY ABSORPTION OF 3D TRANSITION-METAL COMPOUNDS - AN ATOMIC MULTIPLET DESCRIPTION INCLUDING THE CRYSTAL-FIELD
    DEGROOT, FMF
    FUGGLE, JC
    THOLE, BT
    SAWATZKY, GA
    [J]. PHYSICAL REVIEW B, 1990, 42 (09): : 5459 - 5468
  • [7] UNOCCUPIED ELECTRONIC STATES OF CUO - AN OXYGEN 1S X-RAY-ABSORPTION SPECTROSCOPY INVESTIGATION
    GRIONI, M
    CZYZYK, MT
    DEGROOT, FMF
    FUGGLE, JC
    WATTS, BE
    [J]. PHYSICAL REVIEW B, 1989, 39 (08): : 4886 - 4890
  • [8] REFINEMENT OF STRUCTURE OF ANATASE AT SEVERAL TEMPERATURES
    HORN, M
    SCHWERDTFEGER, CF
    MEAGHER, EP
    [J]. ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1972, 136 (3-4): : 273 - 281
  • [9] X-RAY ABSORPTION NEAR-EDGE STRUCTURE OF COMPLEX-COMPOUNDS (NH4)3RHCL6, K3RUCL6, AND RU(NH3)6CL3
    SUGIURA, C
    KITAMURA, M
    MURAMATSU, S
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1986, 84 (09) : 4824 - 4827
  • [10] X-RAY TI K SPECTRA AND BAND STRUCTURES OF OXIDES OF TITANIUM
    TSUTSUMI, K
    AITA, O
    ICHIKAWA, K
    [J]. PHYSICAL REVIEW B, 1977, 15 (10): : 4638 - 4643