Preparation of gas-tight strontium-doped lanthanum cobaltate by an aqueous sol-gel process

被引：16
|
作者：
Chen, CH [1 ]
Kruidhof, H [1 ]
Bouwmeester, HJM [1 ]
Burggraaf, AJ [1 ]
机构：
[1] UNIV TWENTE,FAC CHEM TECHNOL,LAB INORGAN CHEM MAT SCI & CATALYSIS,7500 AE ENSCHEDE,NETHERLANDS
来源：
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1996年 / 39卷 / 02期
关键词：
lanthanum cobaltate; sol-gel; dense membrane;
D O I：
10.1016/0921-5107(96)01582-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Gas-tight dense membranes of highly Sr-doped LaCoO3 (such as the composition La0.3Sr0.7CoO3 chosen in this study) are difficult to prepare using usual synthesis processes. This report presents an aqueous sol-gel route using metal acetates as precursors to achieve this goal. Hydrogen peroxide and ammonia are added to the acetates precursor solution to obtain stable sol and xerogel, as well as a homogeneous powder after heat treatment. Thermal analysis and XRD show the presence of SrCO3 and La2O3 when the heat treatment temperature of the xerogel is lower than 950 degrees C. Single phase of cubic perovskite La0.3Sr0.7CoO3 can be obtained after treatment at above 1000 degrees C. Sintering the cold pressed green compact at above 1100 degrees C may result in gas-tight samples. It is found that the sintering temperature has a minor influence on the oxygen permeability of a gas-tight membrane.
引用
收藏
页码：129 / 132
页数：4
相关论文
共 50 条
  • [1] Preparation of gas-tight strontium-doped lanthanum cobaltate by an aqueous sol-gel process
    Chen, C.H.
    Kruidhof, H.
    Bouwmeester, H.J.M.
    Burggraaf, A.J.
    Materials science & engineering. B, Solid-state materials for advanced technology, 1996, B39 (02): : 129 - 132
  • [2] SOL-GEL SYNTHESIS OF STRONTIUM-DOPED LANTHANUM MANGANITE
    BILGER, S
    SYSKAKIS, E
    NAOUMIDIS, A
    NICKEL, H
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (04) : 964 - 970
  • [3] Preparation of Ca doped lanthanum chromite by sol-gel process
    Zang, BQ
    Ao, Q
    Li, DH
    Sun, LC
    Liu, RW
    JOURNAL OF RARE EARTHS, 2004, 22 : 129 - 131
  • [4] Synthesis of strontium-doped hydroxyapatite powder via sol-gel method
    Sopyan, I.
    Mardziah, C. M.
    Toibah, A. R.
    Ramesh, S.
    MULTI-FUNCTIONAL MATERIALS AND STRUCTURES, PTS 1 AND 2, 2008, 47-50 : 928 - +
  • [5] Sol-Gel Preparation of La Doped Strontium Titanate
    Zhang, Wenjie
    Sun, Xin
    Yang, Bo
    ASIAN JOURNAL OF CHEMISTRY, 2013, 25 (06) : 3263 - 3266
  • [6] Preparation and characterization of highly active nanosized strontium-doped lanthanum cobaltate catalysts with high surface areas
    Niu Jianrong
    Liu Wei
    Dai Hongxing
    He Hong
    Zi Xuehong
    Li Peiheng
    CHINESE SCIENCE BULLETIN, 2006, 51 (14): : 1673 - 1681
  • [7] Study of strontium-doped tricalcium silicate/hydroxyapatite composite cement prepared through sol-gel process
    Thirumurugan, Senthilkumar
    Lin, Yu-Chien
    Lin, Guan-Yi
    Fan, Kuei-Sheng
    Liang, Yung-He
    Kuo, Yi-Jie
    Chung, Ren-Jei
    JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY, 2022, 58 (04) : 1357 - 1366
  • [8] The sol-gel route: A versatile process for up-scaling the fabrication of gas-tight thin electrolyte layers
    Viazzi, Celine
    Rouessac, Vincent
    Lenormand, Pascal
    Julbe, Anne
    Ansart, Florence
    Guizard, Christian
    JOURNAL OF POWER SOURCES, 2011, 196 (06) : 2987 - 2993
  • [9] Mesoporous Strontium-Doped Phosphate-Based Sol-Gel Glasses for Biomedical Applications
    Foroutan, Farzad
    Kyffin, Benjamin Alexander
    Abrahams, Isaac
    Knowles, Jonathan C.
    Sogne, Elisa
    Falqui, Andrea
    Carta, Daniela
    FRONTIERS IN CHEMISTRY, 2020, 8
  • [10] Aqueous combustion synthesis of strontium-doped lanthanum chromite ceramics
    Deshpande, K
    Mukasyan, A
    Varma, A
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2003, 86 (07) : 1149 - 1154
12345