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Autoreduction and Catalytic Performance of a Cobalt Fischer–Tropsch Synthesis Catalyst Supported on Nitrogen-Doped Carbon Spheres

Authors

  • Haifeng Xiong Dr.,

    1. DST/NRF Centre of Excellence in Strong Materials, University of Witwatersrand, Johannesburg 2050 (South Africa), Fax:(+27) 11-7176749
    2. School of Chemistry, University of the Witwatersrand, Johannesburg 2050 (South Africa)
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  • Mahluli Moyo,

    1. School of Chemistry, University of the Witwatersrand, Johannesburg 2050 (South Africa)
    2. School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg 2050 (South Africa)
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  • Matthew K. Rayner,

    1. School of Chemistry, University of the Witwatersrand, Johannesburg 2050 (South Africa)
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  • Linda L. Jewell Dr.,

    1. School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg 2050 (South Africa)
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  • David G. Billing Prof.,

    1. DST/NRF Centre of Excellence in Strong Materials, University of Witwatersrand, Johannesburg 2050 (South Africa), Fax:(+27) 11-7176749
    2. School of Chemistry, University of the Witwatersrand, Johannesburg 2050 (South Africa)
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  • Neil J. Coville Prof.

    1. DST/NRF Centre of Excellence in Strong Materials, University of Witwatersrand, Johannesburg 2050 (South Africa), Fax:(+27) 11-7176749
    2. School of Chemistry, University of the Witwatersrand, Johannesburg 2050 (South Africa)
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Abstract

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Cobalt oxide supported on N-CSs (ca. 700 nm), prepared by deposition precipitation and autoreduced by the carbon supports, gives good performance as a catalyst for Fischer–Tropsch synthesis, better than that achieved by similar catalysts reduced with hydrogen. This effect is related to the trapping of the cobalt in cavities on the eroded carbon surface.

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