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Decreased CO production in methanol steam reforming over Cu/ZrO2 catalysts prepared by the microemulsion technique

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Ritzkopf,  Inga
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Vukojević,  Sascha
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Weidenthaler,  Claudia
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Schüth,  Ferdi
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Ritzkopf, I., Vukojević, S., Weidenthaler, C., Grunwaldt, J.-D., & Schüth, F. (2006). Decreased CO production in methanol steam reforming over Cu/ZrO2 catalysts prepared by the microemulsion technique. Applied Catalysis A: General, 302(2), 215-223. doi:10.1016/j.apcata.2006.01.014.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-939F-9
Abstract
Production of hydrogen by methanol steam reforming has been studied over a series of Cu/ZrO2 catalysts prepared by the microemulsion technique. Catalytic activity was compared to that of a commercial Cu/ZnO catalyst. The synthesized catalysts have been characterized and investigated with respect to methanol conversion, CO formation, and long term stability. Both TPR and XANES/EXAFS indicate that two different Cu species are present in the as-prepared samples. The materials have BET surface areas of up to 165 m2/g. Characterization by XRD and TEM revealed that the Cu/ZrO2 catalysts consist of tetragonal zirconia particles with a homogenous distribution of copper and zirconium in the material. Methanol steam reforming over these Cu/ZrO2 materials results in substantially reduced CO formation at high methanol conversions compared to the commercial Cu/ZnO catalyst.