Preparation of solid acid SO42-/Fe2O3-SiO2 by stearic acid method and preliminary study on its catalytic activity

被引：0
|
作者：
Wu, DH [1 ]
Li, D [1 ]
Yang, J [1 ]
Yang, XJ [1 ]
Lu, LD [1 ]
Wang, X [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Mat Chem Lab, Nanjing 210094, Peoples R China
来源：
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2001年 / 22卷 / 11期
关键词：
solid acid; Fe2O3-SiO2 mixed oxide; stearic acid; esterification;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Fe2O3-SiO2 mixed oxides were prepared by stearic acid method for the first time. After being impregnated by H2SO4 solution and calcined at a certain temperature, the mixed oxides formed a solid acid. The samples were characterized by XRD, TEM, N-2 adsorption/desorption and TG-DTA methods. The results showed that with the increasing of SiO2 content the specific surface areas of Fe2O3-SiO2 mixed oxides increased significantly, but the porous sizes decreased. The catalytic activities of the solid acid, catalysts were evaluated by esterification of acetic acid and butanol.
引用
收藏
页码：1877 / 1880
页数：4
相关论文
共 16 条
  • [1] Structure and electronic properties of solid acids based on tungsten oxide nanostructures
    Barton, DG
    Shtein, M
    Wilson, RD
    Soled, SL
    Iglesia, E
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (04): : 630 - 640
  • [2] Characterization of iron oxide nanoparticles in an Fe2O3-SiO2 composite prepared by a sol-gel method
    Ennas, G
    Musinu, A
    Piccaluga, G
    Zedda, D
    Gatteschi, D
    Sangregorio, C
    Stanger, JL
    Concas, G
    Spano, G
    [J]. CHEMISTRY OF MATERIALS, 1998, 10 (02) : 495 - 502
  • [3] Hu JP, 2000, FINE CHEM, V17, P269
  • [4] Liao SJ, 1998, J MOL CATAL-CHINA, V12, P292
  • [5] LIAO SJ, 1998, J MOL CATAL, V12, P53
  • [6] Free radical formation in ZrO2-SiO2 sol-gel derived catalysts
    Lopez, T
    Tzompantzi, F
    Navarrete, J
    Gomez, R
    Boldú, JL
    Muñoz, E
    Novaro, O
    [J]. JOURNAL OF CATALYSIS, 1999, 181 (02) : 285 - 293
  • [7] MIAO CX, 1995, CHEM J CHINESE U, V16, P591
  • [8] SO42-/TiO2-SiO2 mixed oxide catalyst, I:: Synthesis, characterization, and acidic properties
    Parida, KM
    Samantaray, SK
    Mishra, HK
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1999, 216 (01) : 127 - 133
  • [9] Wang RR, 1998, J DENT RES, V77, P125
  • [10] Synthesis of substituted M- and W-type barium ferrite nanostructured powders by stearic acid gel method
    Wang, XH
    Li, D
    Lu, LD
    Wang, XH
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 237 (1-2) : 45 - 48
12