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Steam reforming of ethanol over Ni-based catalysts obtained from LaNiO3 and LaNiO3/CeSiO2 perovskite-type oxides for the production of hydrogen

Paper ID Volume ID Publish Year Pages File Format Full-Text
38918 45797 2016 12 PDF Available
Title
Steam reforming of ethanol over Ni-based catalysts obtained from LaNiO3 and LaNiO3/CeSiO2 perovskite-type oxides for the production of hydrogen
Abstract

•Ni-based catalyst derived from CeSiO2 supported LaNiO3 perovskite-type oxide was tested for the ethanol steam reforming.•Supporting LaNiO3 perovskite-type oxide decreased carbon deposition during steam reforming of ethanol.•The support promoted the formation of smaller Ni crystallite size, which also contributed to the lowest carbon formation.•Ni-based catalyst derived from CeSiO2 supported LaNiO3 oxide is a potential catalyst for the H2 production for fuel cells.

This work studied the performance of Ni-based catalysts derived from LaNiO3 and CeSiO2 supported LaNiO3 perovskite-type oxides for the steam reforming of ethanol. In situ XRD and TPR revealed the presence of different Ni species on both calcined samples: LaNiO3, La2NiO4 and NiO phases. Both catalysts deactivated during the reaction. Ni sintering was ruled out based on the in situ XRD experiments under reaction conditions. For LaNiO3, metallic Ni particles were partially oxidized by the water present in the feed at the beginning of the reaction. Then, NiO particles formed were reduced again by the syngas produced during the reaction. TG analysis showed significant carbon formation on LaNiO3 catalyst. However, carbon formation was significantly decreased over LaNiO3/CeSiO2 catalyst, which was due to the important role of the support on the mechanism of carbon removal for steam reforming of ethanol.

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Keywords
Perovskite-type oxides; Cerium based oxides; Hydrogen production; Steam reforming; Ethanol
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Steam reforming of ethanol over Ni-based catalysts obtained from LaNiO3 and LaNiO3/CeSiO2 perovskite-type oxides for the production of hydrogen
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 520, 25 June 2016, Pages 53–64
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us