Room-temperature ferromagnetism in Ti1-xVxO2 nanocrystals synthesized from an organic-free and water-soluble precursor

被引：14
|
作者：
Lue, Xujie [1 ]
Li, Jiangtian [1 ]
Mou, Xinliang [1 ,2 ]
Wu, Jianjun [1 ]
Ding, Shangjun [1 ]
Huang, Fuqiang [1 ]
Wang, Yaoming [1 ]
Xu, Fangfang [2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Ceram, Inorgan Mat Anal & Testing Ctr, Shanghai 200050, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 499卷 / 02期
基金：
美国国家科学基金会;
关键词：
Dilute magnetic semiconductor; Ti1-xVxO2; nanocrystals; Ferromagnetism; Oxygen vacancies and interstitials; Bound magnetic polaron model; DOPED TIO2 PHOTOCATALYST; VISIBLE-LIGHT; VANADIUM; ANATASE; FILMS; CATALYSTS; SEMICONDUCTOR; MAGNETISM; NANORODS; DYE;
D O I：
10.1016/j.jallcom.2010.01.023
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：
Ti1-xVxO2 nanocrystals were prepared by employing a novel and water-soluble precursor via hydrothermal method, and the microstructure and magnetic properties have been investigated. All the samples belong to a pure anatase structure and exhibit room-temperature ferromagnetism (RTFM) without any trace of vanadium oxides or clusters. After V doping, the anatase structure is retained, while crystal growth is restrained. The homogenous distribution of V, in V4+ chemical state, in TiO2 lattice is confirmed by X-ray powder diffraction (XRD), energy-dispersive X-ray spectra (EDS), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses. Ferromagnetism in Ti1-xVxO2 is revealed to be highly dependent on the V content and defect concentrations. Furthermore, the annealing study in various atmospheres indicates that the oxygen vacancies and interstitials play a crucial role in inducing ferromagnetism in Ti1-xVxO2 system, and the origin of RTFM can be explained by bound magnetic polaron model. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：160 / 165
页数：6
相关论文
共 29 条
  • [1] Room temperature ferromagnetism in metallic Ti1-xVxO2 thin films
    Zeng, Ze-Ting
    Jiang, Feng-Xian
    Ji, Li-Fei
    Zheng, Hai-Yun
    Zhou, Guo-Wei
    Xu, Xiao-Hong
    RSC ADVANCES, 2018, 8 (55): : 31382 - 31387
  • [2] Room-temperature phosphorescence of a water-soluble supramolecular organic framework
    Xu, Chen
    Lin, Xiaohan
    Wu, Wenjun
    Ma, Xiang
    CHEMICAL COMMUNICATIONS, 2021, 57 (79) : 10178 - 10181
  • [3] Room-Temperature Ferromagnetism in TiO2 Nanocrystals Synthesized by the Controlled Hydrolysis Procedure
    Gu, Deen
    Sun, Zhanhong
    Zhou, Lv
    Hu, Yongda
    Jiang, Yadong
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2016, 16 (03) : 2996 - 3002
  • [4] Room-temperature ferromagnetism in Ni2+ doped TiO2 nanocrystals synthesized from nanotubular precursors
    Vranjes, M.
    Konstantinovic, Z.
    Pomar, A.
    Jakovljevic, J. Kuljanin
    Stoiljkovic, M.
    Nedeljkovic, J. M.
    Saponjic, Z.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 589 : 42 - 47
  • [5] Visible-Light Photocatalytic Properties of Ti1-xVxO2 Films with Dominant {211} Facets Deposited at Room Temperature
    Xie Peng-Cheng
    Huang Lie
    CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2015, 31 (11) : 2197 - 2204
  • [6] Room-temperature ferromagnetism in chemically synthesized Sn1-xCoxO2 powders
    Punnoose, A
    Hays, J
    Gopal, V
    Shutthanandan, V
    APPLIED PHYSICS LETTERS, 2004, 85 (09) : 1559 - 1561
  • [7] Strong room-temperature ferromagnetism in Co2+-doped TiO 2 made from colloidal nanocrystals
    Gamelin, D.R. (Gamelin@chem.washington.edu), 1600, American Chemical Society (126):
  • [8] Room-temperature ferromagnetism in polycrystalline Zn1-xFexO (0≤x≤0.075) solid solutions synthesized by the precursor method
    Krasilnikov, V. N.
    Dyachkova, T. V.
    Gyrdasova, O. I.
    Tyutyunnik, A. P.
    Marchenkov, V. V.
    Weber, H. W.
    MATERIALS CHEMISTRY AND PHYSICS, 2015, 162 : 1 - 5
  • [9] Strong room-temperature ferromagnetism in Co2+-doped TiO2 made from colloidal nanocrystals
    Bryan, JD
    Heald, SM
    Chambers, SA
    Gamelin, DR
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (37) : 11640 - 11647
  • [10] Room-Temperature Synthesis of Three Compounds Featuring the [Ge4S10]4- Anion from a Water-Soluble Thiogermanate Precursor
    Danker, Felix
    Naether, Christian
    Pielnhofer, Florian
    Bensch, Wolfgang
    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2017, (37) : 4317 - 4323
123