Novel Catalytic Systems for Hydrogen Production via the Water-Gas Shift Reaction. (29th May 2013)

• Record Type: Journal Article
• Authors: Petallidou, Klito C.; Polychronopoulou, Kyriaki; Efstathiou, Angelos M.
• Other Names: Al-Assaf Yousef Academic Editor.; Demokritou Philip Academic Editor.; Poullikkas Andreas Academic Editor.; Sourkounis Constantinos Academic Editor.
• Is Part Of: Conference papers in energy. Volume 2013(2013)
• Publication Date: 2013-05-29
• Subjects: Power resources -- Periodicals; Power resources; Periodicals; Electronic journals; 333.79
• DOI: 10.1155/2013/426980
• Languages: English
• ISSNs: 2314-582X

Abstract

Abstract : The present work reports on the development of new catalysts for the production of hydrogen via the water-gas shift (WGS) reaction. In particular, the effect of Ce/La atom ratio on the catalytic performance of 0.5 wt% Pt supported onCe 1 − x La x O 2 − δ (x = 0.0, 0.2, 0.5, 0.8, 1.0 ) mixed metal oxides for the WGS reaction was investigated. It was found that the addition of 20 at.% La 3+ in CeO2 lattice increased significantly the catalytic activity and stability of 0.5 wt%Pt / Ce 0.8 La 0.2 O 2 − δ solid. More precisely, a lower amount of "carbon" was accumulated on the catalyst surface, whereas surface acidity and basicity studies showed thatCe 0.8 La 0.2 O 2 − δ had the highest concentration of labile oxygen and acid sites, and the lowest concentration of basic sites compared to the otherCe 1 − x La x O 2 − δ mixed metal oxide supports (x = 0.2, 0.5, 0.8 ).