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Steam Reforming of Methanol with Sm2O3-CeO2-Supported Palladium Catalysts: Influence of the Thermal Treatments of Catalyst and Support

Lookup NU author(s): Professor Ian Metcalfe

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Abstract

The design of new anode materials to promote the reforming of methanol is important for the development of intermediate temperature direct methanol solid oxide fuel cells. A previous study showed Pd/CeO2-Sm2O3 to be a good candidate. Here, the influence of the calcination pretreatment of the Support and the reduction temperature of the catalyst on the steam reforming of methanol are investigated, as they can become key factors in the performance of the catalyst. Conversion, H-2 yield, and TOF were considerably higher when the support was calcined at 800 degrees C (Pd/CS-800) instead of 1000 degrees C (Pd/CS-1000). Characterization results suggest a stronger interaction of Pd particles with the support in Pd/CS-1000, which hinders its accessibility to the, as atmosphere, and a less homogeneous distribution of Pd particles. In both cases, the activity increases oil increasing the reduction temperature from 400 to 500 degrees C. In addition, these catalysts were highly resistant to deactivation.


Publication metadata

Author(s): Gomez-Sainero LM, Baker RT, Vizcaino AJ, Francis SM, Calles JA, Metcalfe IS, Rodriguez JJ

Publication type: Article

Publication status: Published

Journal: Industrial & Engineering Chemistry Research

Year: 2009

Volume: 48

Issue: 18

Pages: 8364-8372

ISSN (print): 0888-5885

ISSN (electronic): 1520-5045

Publisher: American Chemical Society

URL: http://dx.doi.org/10.1021/ie900630z

DOI: 10.1021/ie900630z


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