Synthesis and characterization of nanophasic LaCoO3 powders

被引:46
作者
Armelao, L
Bandoli, G
Barreca, D
Bettinelli, M
Bottaro, G
Caneschi, A
机构
[1] Univ Padua, ISTM, CNR, I-35131 Padua, Italy
[2] Univ Padua, INSTM, Dipartimento CIMA, I-35131 Padua, Italy
[3] Univ Padua, Dipartimento Sci Farmaceut, I-35131 Padua, Italy
[4] Univ Verona, Dipartimento Sci & Tecnol, I-37100 Verona, Italy
[5] Univ Florence, Dipartimento Chim, Florence, Italy
[6] Univ Florence, INSTM, Florence, Italy
关键词
lanthanum cobaltite; nanopowders; XPS; EPR; XRD;
D O I
10.1002/sia.1264
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
Nanophasic LaCoO3 powders were synthesized from inorganic compounds both in molten chloride fluxes and by using a solution combustion synthesis procedure. The samples were prepared in air and underwent subsequent heat treatments in order to yield the perovskite crystalline phase. The composition and microstructure of the samples were investigated by XPS, x-ray-induced AES, x-ray diffraction and electron paramagnetic resonance. Further information was gained by magnetic measurements. Nanophasic LaCoO3 powders with an average crystallite size of 35 nm were obtained. Copyright (C) 2002 John Wiley Sons, Ltd.
引用
收藏
页码:112 / 115
页数:4
相关论文
共 34 条
  • [1] ELECTRONIC-STRUCTURE AND SPIN-STATE TRANSITION OF LACOO3
    ABBATE, M
    FUGGLE, JC
    FUJIMORI, A
    TJENG, LH
    CHEN, CT
    POTZE, R
    SAWATZKY, GA
    EISAKI, H
    UCHIDA, S
    [J]. PHYSICAL REVIEW B, 1993, 47 (24): : 16124 - 16130
  • [2] Abragam A., 1986, ELECT PARAMAGNETIC R
  • [3] Synthesis of solid materials in molten nitrates
    Afanasiev, P
    Geantet, C
    [J]. COORDINATION CHEMISTRY REVIEWS, 1998, 178 : 1725 - 1752
  • [4] Studies on combustion synthesized LaMnO3-LaCoO3 solid solutions
    Aruna, ST
    Muthuraman, M
    Patil, KC
    [J]. MATERIALS RESEARCH BULLETIN, 2000, 35 (02) : 289 - 296
  • [5] Combustion synthesis and properties of strontium substituted lanthanum manganites La1-xSrxMnO3 (0<=x<=0.3)
    Aruna, ST
    Muthuraman, M
    Patil, KC
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (12) : 2499 - 2503
  • [6] PHOTOELECTRON-SPECTROSCOPY INVESTIGATION OF THE SPIN-STATE TRANSITION IN LACOO3
    BARMAN, SR
    SARMA, DD
    [J]. PHYSICAL REVIEW B, 1994, 49 (19): : 13979 - 13982
  • [7] SATELLITE STRUCTURE IN X-RAY PHOTOELECTRON-SPECTRA OF SOME BINARY AND MIXED OXIDES OF LANTHANUM AND CERIUM
    BURROUGHS, P
    HAMNETT, A
    ORCHARD, AF
    THORNTON, G
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1976, (17): : 1686 - 1698
  • [8] MULTIPLET SPLITTING OF METAL-ATOM ELECTRON BINDING ENERGIES
    FADLEY, CS
    SHIRLEY, DA
    [J]. PHYSICAL REVIEW A, 1970, 2 (04): : 1109 - &
  • [9] NONSTOICHIOMETRIC SURFACE BEHAVIOR OF LAMO3 OXIDES AS EVIDENCED BY XPS
    FIERRO, JLG
    TEJUCA, LG
    [J]. APPLIED SURFACE SCIENCE, 1987, 27 (04) : 453 - 457
  • [10] Geselbracht MJ, 1997, MATER RES SOC SYMP P, V453, P147