Hydrogen Production by Methane Steam Reforming Over Ru and Cu Supported on Hydrotalcite Precursors

Doris Homsi; Samer Aouad; Cedric Gennequin; Antoine Aboukaïs; Edmond Abi-Aad

doi:10.4028/www.scientific.net/AMR.324.453

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 324Hydrogen Production by Methane Steam Reforming...

Hydrogen Production by Methane Steam Reforming Over Ru and Cu Supported on Hydrotalcite Precursors

Abstract:

Co₆Al₂ oxide was prepared using the hydrotalcite route. The obtained solid was thermally stabilized at 500°C and then impregnated with 5 wt.% copper or 1 wt.% ruthenium nitrate solution followed by calcination at 500°C under an air flow. X-ray diffraction results showed that the calcination of the impregnated solids led to the formation of various oxides (CuO, RuO₂, Co₃O₄, CoAl₂O₄, CoAl₂O₄). The different impregnated and non impregnated solids were tested in the methane steam reforming reaction (MSR). Methane conversion did not exceed 5% at 800°C in the case of the non impregnated solid, whereas the impregnation strongly enhanced the reactivity: ~89% and ~92% conversions were reached at 600°C for Cu and Ru respectively. The good reactivity of ruthenium impregnated catalyst was attributed to the formation of easily reducible ruthenium and cobalt oxide species at the surface of the support. The addition of ruthenium made the reduction of surface and bulk cobalt oxides possible at lower temperatures.

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Advanced Materials Research (Volume 324)

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453-456

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.324.453

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Online since:

August 2011

Authors:

Doris Homsi, Samer Aouad, Cedric Gennequin, Antoine Aboukaïs, Edmond Abi-Aad

Keywords:

Copper, Hydrotalcite, Methane Steam Reforming, Ruthenium, TPR, X-Ray Diffraction (XRD)

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