Photoluminescence Spectra and Crystallization of θ-Al2O3 and α-Al2O3 from AlOOH-Fe(NO3)3 Gels

被引：0
|
作者：
J. Kákoš
L′. Bača
P. Veis
L. Pach
机构：
[1] Slovak University of Technology,Department of Ceramics, Glass and Cement, Faculty of Chemical Technology
[2] Comenius University,Department of Plasma Physics, Faculty of Mathematics and Physics
[3] Mlynska dolina,undefined
来源：
Journal of Sol-Gel Science and Technology | 2001年 / 21卷
关键词：
photoluminescence; sol-gel; boehmite; Al; O; crystallization;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Diphasic boehmite derived unseeded and seeded (by either α-Al2O3, α-Fe2O3, or Fe(NO3)3) alumina gel planar monoliths were examined by DTA, XRD and photoluminescence spectroscopy. Luminescence spectra enable sensitive monitoring of the Θ- and α-Al2O3 crystallization in heat-treated gels due to Cr3+ impurity traces. Fe(NO3)3 unlike other seeds effectively influences crystallization of both Θ- and α-Al2O3. The present results are interpreted as prevailing solution or Fe3+ ion effect on the crystallization process.
引用
收藏
页码：167 / 172
页数：5
相关论文
共 50 条
  • [41] REACTION SITES ON THE AL2O3 SUPPORT OF PD/AL2O3
    FALCONER, JL
    CHEN, B
    LARSON, SA
    HSIAO, EC
    STUDIES IN SURFACE SCIENCE AND CATALYSIS, 1993, 75 : 1887 - 1890
  • [42] Al2O3陶瓷和Al2O3微粉
    赵泽浩
    真空电子技术, 2003, (04) : 48 - 50+56
  • [43] Transition of γ-Al2O3 into α-Al2O3 during vibro milling
    Kostic, E
    Kiss, SJ
    Zec, S
    Boskovic, S
    POWDER TECHNOLOGY, 2000, 107 (1-2) : 48 - 53
  • [44] Electronic and optical properties of Θ-Al2O3 and comparison to α-Al2O3
    Mo, SD
    Ching, WY
    PHYSICAL REVIEW B, 1998, 57 (24) : 15219 - 15228
  • [45] DYNAMIC FRACTURE CHARACTERIZATION OF AL2O3 AND SICW/AL2O3
    DEOBALD, LR
    KOBAYASHI, AS
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (10) : 2867 - 2870
  • [46] ADSORPTION AND SPILLOVER OF HYDROGEN ON AL2O3 AND PT/AL2O3
    MUSSO, JC
    PARERA, JM
    APPLIED CATALYSIS, 1987, 30 (01): : 81 - 90
  • [47] SEA Synthesis of Pt/Al2O3 and Pd/Al2O3
    Selck, David A.
    Bartholomew, Calvin H.
    Astle, Lynn
    Boerio-Goates, Juliana
    Woodfield, Brian F.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2010, 239
  • [48] Effect of Al2o3 concentration upon complex permittivity of Fe/Al2O3 composites
    Zeng, Guo-Xun
    Zhang, Hai-Yan
    Hu, Li-Chu
    Chen, Yi-Ming
    Cailiao Gongcheng/Journal of Materials Engineering, 2007, (03): : 7 - 9
  • [49] 球磨Fe3O4+Al制备Fe/α-Al2O3及选择刻蚀Fe制备α-Al2O3
    李志军
    世界有色金属, 2018, (09) : 5 - 6
  • [50] Thermal stability of γ-Al2O3/α-Al2O3 mesoporous membranes
    Lafarga, D
    Lafuente, A
    Menendez, F
    Santamaria, J
    JOURNAL OF MEMBRANE SCIENCE, 1998, 147 (02) : 173 - 185
12345