Electronic properties of LiMn2-x Ti x O4

被引：18
作者：
Song, Jie [2 ,3 ]
Hong, Bing-Lin [2 ,3 ]
Zheng, Jun [2 ,3 ]
Lin, Pei [2 ,3 ]
Zheng, Ming-Sen [2 ,3 ]
Wu, Qi-Hui [1 ]
Dong, Quan-Feng [2 ,3 ]
Sun, Shi-Gang [2 ,3 ]
机构：
[1] La Trobe Univ, Dept Phys, Bundoora, Vic 3086, Australia
[2] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
[3] Xiamen Univ, State Key Lab Phys Chem Solid Surf, Xiamen 361005, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2010年 / 98卷 / 02期
关键词：
RAY PHOTOELECTRON-SPECTROSCOPY; GEL METHOD; MN-O; LITHIUM; CATHODE; VOLTAGE;
D O I：
10.1007/s00339-009-5420-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ti-substituted LiMn2O4 (LiMn2-x Ti (x) O-4, x=0, 0.15, 0.30, 0.45, 0.60, and 0.75) has been synthesized using solid-state reactions. Their crystal and electronic structures were investigated using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS). XRD data suggested that the lattice parameters of LiMn2-x Ti (x) O-4 increase due to the replacement of Mn by Ti ions. XPS results indicated that the substituted Ti ions were in +4 oxidation state; consequently, the normal oxidation state of Mn ions has been detected by measuring the binding energy splitting of Mn 3s states, which decreases with the content of substituted Ti. The valence band spectra suggested that the intensity of e (g) level of Mn 3d orbitals increased due to the increase of the Mn3+/Mn4+ ratio.
引用
收藏
页码：455 / 460
页数：6
相关论文
共 37 条
  • [1] A STUDY OF A NUMBER OF MIXED TRANSITION-METAL OXIDE SPINELS USING X-RAY PHOTOELECTRON-SPECTROSCOPY
    ALLEN, GC
    HARRIS, SJ
    JUTSON, JA
    DYKE, JM
    [J]. APPLIED SURFACE SCIENCE, 1989, 37 (01) : 111 - 134
  • [2] [Anonymous], LITHIUM ION BATTERIE
  • [3] Structural characterisation and physical properties of LiMMnO4 (M = Cr, Ti) spinels
    Arillo, MA
    Cuello, G
    López, ML
    Martín, P
    Pico, C
    Veiga, ML
    [J]. SOLID STATE SCIENCES, 2005, 7 (01) : 25 - 32
  • [4] TIN, TIC AND TI(C,N) FILM CHARACTERIZATION AND ITS RELATIONSHIP TO TRIBOLOGICAL BEHAVIOR
    BERTONCELLO, R
    CASAGRANDE, A
    CASARIN, M
    GLISENTI, A
    LANZONI, E
    MIRENGHI, L
    TONDELLO, E
    [J]. SURFACE AND INTERFACE ANALYSIS, 1992, 18 (07) : 525 - 531
  • [5] DIRECT CARBIDIZATION OF TITANIUM AS A RESULT OF MULTIPULSE UV-LASER IRRADIATION OF TITANIUM SAMPLES IN AN AMBIENT METHANE GAS
    BOULMERLEBORGNE, C
    HERMANN, J
    DUBREUIL, B
    BRAULT, P
    DEGIORGI, ML
    LEGGIERI, G
    LUCHES, A
    MARTINO, M
    PERRONE, A
    MIHAILESCU, IN
    URSU, I
    BLONDIAUX, G
    DEBRUN, JL
    ESTRADE, H
    ROUSSEAU, B
    [J]. APPLIED SURFACE SCIENCE, 1992, 54 : 349 - 352
  • [6] X-RAY PHOTOELECTRON-SPECTROSCOPY STUDY OF THE CATION VALENCIES IN NICKEL MANGANITE
    BRABERS, VAM
    VANSETTEN, FM
    KNAPEN, PSA
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1983, 49 (01) : 93 - 98
  • [7] High-resolution X-ray diffraction, DIFFaX, NMR and first principles study of disorder in the Li2MnO3-Li[Ni1/2Mn1/2]O2 solid solution
    Bréger, J
    Jiang, M
    Dupré, N
    Meng, YS
    Shao-Horn, Y
    Ceder, G
    Grey, CP
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2005, 178 (09) : 2575 - 2585
  • [8] Synthesis and electrochemical properties of nonstoichiometric LiAlxMn2-xO4-δ as cathode materials for rechargeable lithium ion battery
    Cho, Woosuk
    Ra, Wonkyung
    Shirakawa, Junichi
    Nakayama, Masanobu
    Wakihara, Masataka
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (11) : 3534 - 3540
  • [9] Valence band of LiNixMn2-xO4 and its effects an the voltage profiles of LiNixMn2-xO4/Li electrochemical cells
    Gao, Y
    Myrtle, K
    Zhang, MJ
    Reimers, JN
    Dahn, JR
    [J]. PHYSICAL REVIEW B, 1996, 54 (23): : 16670 - 16675
  • [10] SURFACE-DEFECTS OF TIO2(110) - A COMBINED XPS, XAES AND ELS STUDY
    GOPEL, W
    ANDERSON, JA
    FRANKEL, D
    JAEHNIG, M
    PHILLIPS, K
    SCHAFER, JA
    ROCKER, G
    [J]. SURFACE SCIENCE, 1984, 139 (2-3) : 333 - 346
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