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    Preparation of cobalt/carbon-xerogel for heterogeneous oxidation of phenol

    Access Status
    Fulltext not available
    Authors
    Sun, Hongqi
    Tian, Hu-Yong
    Hardjono, Y.
    Buckley, Craig
    Wang, Shaobin
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Sun, Hongqi and Tian, Huyong and Hardjono, Yasnessya and Buckley, Craig E. and Wang, Shaobin. 2012. Preparation of cobalt/carbon-xerogel for heterogeneous oxidation of phenol. Catalysis Today. 186 (1): pp. 63-68.
    Source Title
    Catalysis Today
    DOI
    10.1016/j.cattod.2011.09.001
    ISSN
    0920-5861
    URI
    http://hdl.handle.net/20.500.11937/23367
    Collection
    • Curtin Research Publications
    Abstract

    Two catalysts of Co oxide loaded on carbonxerogel (CX) were prepared by either in situ Co ion doping (Co/CX-G) or impregnation (Co/CX-I). The samples were characterised by N2 adsorption, X-ray diffraction (XRD), scanning electron microscopy–energy dispersive X-ray spectroscopy (SEM–EDS), temperature programmed oxidation (TPO)–differential scanning calorimetry (DSC) and temperature programmed desorption (TPD)–DSC. Their performances in adsorption of phenol and heterogeneousoxidation of phenol using sulphate radical in aqueous solution were investigated. It was found that loading of Co oxide on carbonxerogel reduced the adsorption capacity of phenol. Co/CX samples prepared by the different methods exhibited varying activities in heterogeneousoxidation of phenol by sulphate radical. Kinetic studies demonstrated that Co/CX presented the first-order kinetics and the activation energies were obtained as 62.9 and 48.3 kJ/mol for Co/CX-G and Co/CX-I, respectively.

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