Complete n-hexane oxidation over supported Mn-Co catalysts

被引:151
|
作者
Todorova, S. [1 ]
Kolev, H. [1 ]
Holgado, J. P. [2 ,3 ]
Kadinov, G. [1 ]
Bonev, Ch. [1 ]
Pereniguez, R. [2 ,3 ]
Caballero, A. [2 ,3 ]
机构
[1] Bulgarian Acad Sci, Inst Catalysis, BU-1113 Sofia, Bulgaria
[2] Univ Seville, CSIC, Inst Ciencia Mat, Seville, Spain
[3] Univ Seville, CSIC, Dpto Quim Inorgan, Seville, Spain
关键词
Complete n-hexane oxidation; Supported Co-Mn oxide catalysts; MANGANESE OXIDES; TEMPERATURE; COMBUSTION; REDUCTION; COBALT; PROMOTER; DECOMPOSITION; ETHANOL; TOLUENE;
D O I
10.1016/j.apcatb.2009.10.019
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Two series of Co-Mn samples were prepared by impregnation of silica with aqueous solutions or Co(NO3)(2)center dot 6H(2)O and/or Mn(NO3)(2)center dot 6H(2)O. Cobalt oxide was the predominant phase in one of the series and manganese was used as the promoter. The major component in the second series was manganese oxide and Co was the promoter. The prepared samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), temperature-programmed reduction (TPR), and X-ray photoelectron spectroscopy (XPS) and tested in the reaction of complete n-hexane oxidation. The catalytic activity of both single component cobalt and manganese samples was similar, however, a combination between the two elements changed significantly the activity and this depended on the method of preparation. Catalysts prepared by a common solution of Co- and Mn nitrates manifested a considerable increase in activity as a result of very low crystallinity of the supported metal oxide phases, partial enrichment of the surface with cobalt and uniform distribution of oxide agglomerates on the support. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:46 / 54
页数:9
相关论文
共 50 条
  • [1] Mechanism of complete n-hexane oxidation on silica supported cobalt and manganese catalysts
    Todorova, S.
    Naydenov, A.
    Kolev, H.
    Holgado, J. P.
    Ivanov, G.
    Kadinov, G.
    Caballero, A.
    APPLIED CATALYSIS A-GENERAL, 2012, 413 : 43 - 51
  • [2] Effect of Co and Ce on silica supported manganese catalysts in the reactions of complete oxidation of n-hexane and ethyl acetate
    Todorova, S.
    Naydenov, A.
    Kolev, H.
    Tenchev, K.
    Ivanov, G.
    Kadinov, G.
    JOURNAL OF MATERIALS SCIENCE, 2011, 46 (22) : 7152 - 7159
  • [3] Effect of Co and Ce on silica supported manganese catalysts in the reactions of complete oxidation of n-hexane and ethyl acetate
    S. Todorova
    A. Naydenov
    H. Kolev
    K. Tenchev
    G. Ivanov
    G. Kadinov
    Journal of Materials Science, 2011, 46 : 7152 - 7159
  • [4] Catalytic Combustion of n-Hexane Over Alumina Supported Mn–Cu–Ce Catalysts
    Maria Roxana Morales
    Fabiola N. Agüero
    Luis E. Cadus
    Catalysis Letters, 2013, 143 : 1003 - 1011
  • [5] Kinetics of n-hexane isomerization over supported palladium catalysts
    Loc Luu Cam
    Tri Nguyen
    Thoa Dao Thi Kim
    N. A. Gaidai
    Yu. A. Agafonov
    Anh Ha Cam
    Cuong Hoang Tien
    A. L. Lapidus
    Kinetics and Catalysis, 2017, 58 : 311 - 320
  • [6] Kinetics of n-Hexane Isomerization over Supported Palladium Catalysts
    Luu Cam Loc
    Nguyen Tri
    Dao Thi Kim Thoa
    Gaidai, N. A.
    Agafonov, Yu. A.
    Ha Cam Anh
    Hoang Tien Cuong
    Lapidus, A. L.
    KINETICS AND CATALYSIS, 2017, 58 (03) : 311 - 320
  • [7] N-HEXANE CONVERSION OVER SUPPORTED PT CATALYSTS - REPLY
    SHARMA, SB
    DUMESIC, JA
    JOURNAL OF CATALYSIS, 1995, 156 (02) : 304 - 306
  • [8] Catalytic Combustion of n-Hexane Over Alumina Supported Mn-Cu-Ce Catalysts
    Roxana Morales, Maria
    Agueero, Fabiola N.
    Cadus, Luis E.
    CATALYSIS LETTERS, 2013, 143 (10) : 1003 - 1011
  • [9] CRACKING OF N-HEXANE OVER LAX CATALYSTS
    ALDRIDGE, LP
    MCLAUGHL.JR
    POPE, CG
    JOURNAL OF CATALYSIS, 1973, 30 (03) : 409 - 416
  • [10] Supported sulfated zirconia catalysts for isomerization of n-hexane
    Bikmetova, L., I
    Smolikov, M. D.
    Zatolokina, E., V
    Kazantsev, K., V
    Tregubenko, V. Yu
    Belyi, A. S.
    OIL AND GAS ENGINEERING (OGE-2016), 2016, 152 : 87 - 93