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Pt-Co catalyst-coated channel plate reactor for preferential CO oxidation
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
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2011 (English)In: International journal of hydrogen energy, ISSN 0360-3199, Vol. 36, no 5, 3778-3788 p.Article in journal (Refereed) Published
Abstract [en]

To achieve preferential CO oxidation, a Pt-Co catalyst-coated channel plate reactor (CCPR) was produced via conventional mechanical milling and catalyst coating. The proposed reactor performed well under a wide range of operating temperatures and provided satisfactory results at low temperatures (CO concentrations of 1-10 ppm at 413-443 K and 1-50 ppm at 413-453 K). In the proposed CCPR, significant deactivation was not observed during continuous operation for 100 h. In addition, the reactor exhibited excellent tolerance to undesirable conditions, including reaction temperature runaway and feeding stream failure. Characterisation results indicated that the catalytic activity of the proposed CCPR was high due to the formation of Pt3Co intermetallic compounds and nanoscale metal particles. The capacity per channel of the proposed CCPR was approximately 50-100 times greater than those of conventional microchannel reactors; thus, problems associated with excessive reactors were significantly reduced. In general, the results indicated that CCPR has great potential in the small-scale production of hydrogen for fuel cells.

Place, publisher, year, edition, pages
2011. Vol. 36, no 5, 3778-3788 p.
Keyword [en]
Preferential oxidation, Catalyst coating, Reactor, Carbon monoxide oxidation, Hydrogen purification
National Category
Physical Chemistry Inorganic Chemistry
URN: urn:nbn:se:kth:diva-32235DOI: 10.1016/j.ijhydene.2010.12.016ISI: 000288833600058ScopusID: 2-s2.0-79952241478OAI: diva2:419841
QC 20110530Available from: 2011-05-30 Created: 2011-04-11 Last updated: 2011-05-30Bibliographically approved

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