Title of article
Effect of platinum on ceria supported copper catalysts for PrOx process in fuel processors
Author/Authors
Hoshyar، Najmeh نويسنده Hydrogen and Fuel Cell Research Laboratory, Chemical Engineering Department, University of Kashan, Kashan, Iran , , Irankhah، Abdullah نويسنده Hydrogen and Fuel Cell Research Lab., Chemical Engineering Department, University of Kashan, Kashan, 87317-51167, Iran ,
Issue Information
فصلنامه با شماره پیاپی 1 سال 2014
Pages
7
From page
47
To page
53
Abstract
The CO preferential oxidation (PrOx) is one of the critical steps in hydrogen production and purification for Polymer Electrolyte Membrane Fuel Cell (PEMFC). This reaction was investigated in the presence of excess hydrogen over Cu/CeO2, Pt/CeO2 and Cu-Pt/CeO2 catalysts. The ceria supports was prepared via precipitation method and Cu-Pt/CeO2 catalyst was synthesized by sequential impregnation on ceria. The catalysts were characterized by XRD. Comparison of ceria supported copper and platinum showed that the activity of copper catalysts are higher than platinum in PrOx process. Effect of platinum addition on ceria supported copper was investigated, and the results showed that Pt promoter have positive effect on CO conversion in low temperature ( < 110°C). Promotion of Cu with Pt increases the CO conversion by 30% in comparison with unpromoted Cu catalyst. It is mentioned that the platinum addition to copper only promotes the Cu catalyst at low temperature. T higher temperatures, reverse WGS reaction occurs and decreases the CO conversion.
Journal title
Iranian Journal of Hydrogen and Fuel Cell
Serial Year
2014
Journal title
Iranian Journal of Hydrogen and Fuel Cell
Record number
2386083
Link To Document