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Lookup NU author(s): Professor Ian Metcalfe
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The behavior of two 2% Pd/Sm2O3-CeO2 catalysts with the support calcined at different temperatures in the reforming of methanol was studied to be used as electro-catalysts in Direct Methanol Intermediate Temperature Solid-Oxide Fuel Cell. Activity measurements were performed in a fixed bed micro-reactor using 0.1 g of catalyst at 1 atm, 400°C, space velocity of 0.32 mole/hr-g cat, H2O/CH3OH molar ratio = 1.2:1 and a methanol concentration in the gas stream of 15 mole %. The catalyst with the support calcined at 800°C (Pd/CS-800) was considerably more efficient for H2 production. A thicker layer of Sm2O3 decorating CeO2 particles was observed in Pd/CS-1000, which led to a stronger interaction with the Pd particles, so hindering its spread into the support and making them more inaccessible to the gas atmosphere. A better Pd dispersion and a more homogeneous distribution in the surface of Sm2O3 was found. This is an abstract of a paper presented at the 8th World Congress of Chemical Engineering (Montréal, Quebec, Canada 8/23-27/2009).
Author(s): Gómez-Sainero L, Rodriguez J, Baker R, Francis S, Vizcaino A, Calles J, Metcalfe I
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 8th World Congress of Chemical Engineering
Year of Conference: 2009