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Issue 7, 2012
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Cobalt hydrotalcite for the steam reforming of ethanol with scarce carbon production

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Abstract

Co/Mg/Al hydrotalcite-type catalysts have been loaded onto ceramic honeycombs and tested in the ethanol steam reforming (ESR) reaction for producing hydrogen under practical conditions. In contrast with previously reported cobalt-based systems, the formation of carbon was scarce. This has been ascribed to the unique formation of traces of metallic cobalt particles under reaction conditions, as inferred from HRTEM, magnetic measurements, and in situ X-ray photoelectron spectroscopy (XPS) experiments. The best catalytic performance has been exhibited by the catalyst derived from the hydrotalcite with a Co:Mg:Al molar ratio of 1 : 2 : 1, where CoAl spinel and CoO strongly interacting with MgO phases have been identified.

Graphical abstract: Cobalt hydrotalcite for the steam reforming of ethanol with scarce carbon production

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Publication details

The article was received on 21 Oct 2011, accepted on 22 Dec 2011 and first published on 14 Feb 2012


Article type: Paper
DOI: 10.1039/C2RA00936F
RSC Adv., 2012,2, 2946-2956

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    Cobalt hydrotalcite for the steam reforming of ethanol with scarce carbon production

    R. Espinal, E. Taboada, E. Molins, R. J. Chimentao, F. Medina and J. Llorca, RSC Adv., 2012, 2, 2946
    DOI: 10.1039/C2RA00936F

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