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] Optimising Al2O3–water nanofluid
    Ekene Onyiriuka
    Bulletin of the National Research Centre, 48 (1)
  • [42] The role of Al2O3 interlayer in the synthesis of ZnS/Al2O3/MoS2 core-shell nanowires
    Butanovs, Edgars
    Kuzmin, Alexei
    Zolotarjovs, Aleksejs
    Vlassov, Sergei
    Polyakov, Boris
    JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 918
  • [43] Reactivity of surface isocyanate species with NO, O2 and NO+O2 in selective reduction of NOχ over Ag/Al2O3 and Al2O3 catalysts
    Satoshi Kameoka
    Tarik Chafik
    Yuji Ukisu
    Tatsuo Miyadera
    Catalysis Letters, 1998, 55 : 211 - 215
  • [44] Microstructural and Mechanical Properties of Al2O3 and Al2O3/TiB2 Ceramics Consolidated by Plasma Pressure Compaction
    F. Rubino
    G. Rotella
    M. Perrella
    P. Carlone
    T. S. Sudarshan
    Journal of Materials Engineering and Performance, 2023, 32 : 4391 - 4403
  • [45] Sulfur deactivation and regeneration of Pt/BaO/Al2O3 and Pt/SrO/Al2O3 NOx storage catalysts
    Jazaer Dawody
    Inga Tönnies
    Erik Fridell
    Magnus Skoglundh
    Topics in Catalysis, 2007, 42-43 : 183 - 187
  • [46] Differences Between Al2O3 and Ag/Al2O3 for Lean Reduction of NOx with Dimethyl Ether
    Stefanie Tamm
    Hanna H. Ingelsten
    Magnus Skoglundh
    Anders E. C. Palmqvist
    Topics in Catalysis, 2009, 52
  • [47] Kinetics and Mechanism of γ-Al2O3 Solid Phase Epitaxy on c-Plane α-Al2O3
    Wan, Zhongyi
    Liu, Rui
    Savage, Donald E.
    Kuech, Thomas F.
    Evans, Paul G.
    Schmidt, J. R.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2023, 127 (27) : 13207 - 13216
  • [48] Unraveling the Origin of Structural Disorder in High Temperature Transition Al2O3: Structure of θ-Al2O3
    Kovarik, Libor
    Bowden, Mark
    Shi, Dachuan
    Washton, Nancy M.
    Andersen, Amity
    Hu, Jian Zhi
    Lee, Jaekyoung
    Szanyi, Janos
    Kwak, Ja-Hun
    Peden, Charles H. F.
    CHEMISTRY OF MATERIALS, 2015, 27 (20) : 7042 - 7049
  • [49] Effect of nanocrystalline χ-Al2O3 structure on the catalytic behavior of Co/Al2O3 in CO hydrogenation
    Chaitree, Wasu
    Jiemsirilers, Sirithan
    Mekasuwandumrong, Okorn
    Jongsomjit, Bunjerd
    Shotipruk, Artiwan
    Panpranot, Joongjai
    CATALYSIS TODAY, 2011, 164 (01) : 302 - 307
  • [50] Structure and electric property comparison between Ge nanoclusters embedded in Al2O3 and Al2O3/ZrO2
    Weili Liu
    Qing Wan
    Chenglu Lin
    Metals and Materials International, 2004, 10 : 161 - 165
12345