Hydrothermal routes to prepare nanocrystalline mesoporous SnO2 having high thermal stability

被引:180
作者
Fujihara, S
Maeda, T
Ohgi, H
Hosono, E
Imai, H
Kim, SH
机构
[1] Keio Univ, Fac Sci & Technol, Dept Appl Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
[2] Kangnung Natl Univ, Dept Ceram Engn, Kangnung 210702, South Korea
关键词
D O I
10.1021/la0493060
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report simple hydrothermal routes to prepare thermally stable SnO2 particles having high specific surface areas and mesoporosity. The preparation method includes a new combination of synthetic processes: hydrolysis of tin(IV) chloride at 95 degreesC in the absence of alkaline solutions (aqueous NH3 or NaOH), formation of nanocrystalline SnO2, and subsequent hydrothermal treatments at temperatures between 100 and 200 degreesC. After annealing treatments of the hydrothermally treated SnO2 particles at 400 or 500 degreesC, their crystallite sizes remained smaller than 7.7 nm and their specific surface areas were still higher than 110 m(2)/g, indicative of the high thermal stability against particle growth and sintering. Furthermore, mesoporosity evolved with a relatively narrow pore size distribution typically in the range of 3.0-4.3 nm. The effects of the hydrothermal treatment were explained by uniformization of the particle size that was beneficial to the suppression of particle growth.
引用
收藏
页码:6476 / 6481
页数:6
相关论文
共 22 条
  • [1] Hydrothermally treated sol solution of tin oxide for thin-film gas sensor
    Baik, NS
    Sakai, G
    Miura, N
    Yamazoe, N
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2000, 63 (1-2) : 74 - 79
  • [2] Preparation of mesoporous tin oxide for electrochemical applications
    Chen, FL
    Liu, ML
    [J]. CHEMICAL COMMUNICATIONS, 1999, (18) : 1829 - 1830
  • [3] Organogelators for making porous sol-gel derived silica at two different length scales
    Clavier, GM
    Pozzo, JL
    Bouas-Laurent, H
    Liere, C
    Roux, C
    Sanchez, C
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2000, 10 (07) : 1725 - 1730
  • [4] The effects of crystallite growth and dopant migration on the carbon monoxide sensing characteristics of nanocrystalline tin oxide based sensor materials
    Davis, SR
    Chadwick, AV
    Wright, JD
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (09) : 2065 - 2071
  • [5] Synthesis and characterization of crystalline tin oxide nanoparticles
    de Monredon, S
    Cellot, A
    Ribot, F
    Sanchez, C
    Armelao, L
    Gueneau, L
    Delattre, L
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (08) : 2396 - 2400
  • [6] Synthesis of tin oxide nanocrystalline phases via use of tin(II) halide precursors
    Deng, HM
    Lamelas, FJ
    Hossenlopp, JM
    [J]. CHEMISTRY OF MATERIALS, 2003, 15 (12) : 2429 - 2436
  • [7] Standard nitrogen adsorption data for characterization of nanoporous silicas
    Jaroniec, M
    Kruk, M
    Olivier, JP
    [J]. LANGMUIR, 1999, 15 (16) : 5410 - 5413
  • [8] H2 selective gas sensor based on SnO2
    Katsuki, A
    Fukui, K
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1998, 52 (1-2) : 30 - 37
  • [9] Effect of microstructure on the stability of nanocrystalline tin dioxide ceramics
    Kudryavtseva, SM
    Vertegel, AA
    Kalinin, SV
    Oleynikov, NN
    Ryabova, LI
    Meshkov, LL
    Nesterenko, SN
    Rumyantseva, MN
    Gaskov, AM
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (11) : 2269 - 2272
  • [10] Leite ER, 2000, ADV MATER, V12, P965, DOI 10.1002/1521-4095(200006)12:13<965::AID-ADMA965>3.0.CO