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Viability of Au/CeO 2 –ZnO/Al 2 O 3 Catalysts for Pure Hydrogen Production by the Water–Gas Shift Reaction
Author(s) -
Reina Tomás Ramírez,
Ivanova Svetlana,
Delgado Juan José,
Ivanov Ivan,
Idakiev Vasko,
Tabakova Tatyana,
Centeno Miguel Angel,
Odriozola José Antonio
Publication year - 2014
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201300992
Subject(s) - water gas shift reaction , catalysis , hydrogen , hydrogen production , chemical engineering , oxygen , water gas , materials science , chemistry , inorganic chemistry , syngas , organic chemistry , engineering
The production of H 2 pure enough for use in fuel cells requires the development of very efficient catalysts for the water–gas shift reaction. Herein, a series of gold catalysts supported on ZnO‐promoted CeO 2 –Al 2 O 3 are presented as interesting systems for the purification of H 2 streams through the water–gas shift reaction. The addition of ZnO remarkably promotes the activity of an Au/CeO 2 /Al 2 O 3 catalyst. This increase in activity is mainly associated with the enhanced oxygen storage capacity exhibited for the Zn‐containing solids. High activity and good stability and resistance towards start‐up–shut‐down situations was found, which makes these catalysts a promising alternative for CO clean‐up applications.