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Gorski, Alexandr and Yurkiv, Vitaliy and Bessler, Wolfgang G. and Volpp, Hans-Robert (2011) Combined Theoretical and Experimental Studies of H2 and CO Oxidation over YSZ Surface. In: ECS Transactions, 35 (1), pp. 727-737. The Electrochemical Society. 219th ECS Meeting, 2011-05-01 - 2011-05-06, Montreal, QC, Canada.
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Abstract
The mechanism of H2 and CO adsorption and oxidation on yttriastabilized zirconia, frequently used as electrolyte in solid oxide fuel cell composite anodes, was investigated employing temperature-programmed spectroscopy (TPS) and density functional theory (DFT). In agreement with theory, the experimental results show that interaction of gaseous H2O with YSZ results in dissociative adsorption leading to strongly bound OH surface species. In the interaction of gaseous H2 with an oxygen-enriched YSZ surface (YSZ+O), similar OH surface species are formed as reaction intermediates in the H2 oxidation. In contrast, the interaction of CO with an oxygen-enriched YSZ leads to direct formation of gaseous CO2 via an Eley-Rideal type reaction that was also confirmed by TPS measurements.
| Item URL in elib: | https://elib.dlr.de/71738/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Paper, Poster) | ||||||||||||||||||||
| Additional Information: | DOI: 10.1149/1.3570052 | ||||||||||||||||||||
| Title: | Combined Theoretical and Experimental Studies of H2 and CO Oxidation over YSZ Surface | ||||||||||||||||||||
| Authors: |
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| Date: | 1 May 2011 | ||||||||||||||||||||
| Journal or Publication Title: | ECS Transactions | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| Volume: | 35 | ||||||||||||||||||||
| Page Range: | pp. 727-737 | ||||||||||||||||||||
| Editors: |
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| Publisher: | The Electrochemical Society | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | Solid oxide fuel cell (SOFC) Hydrogen (H2) oxidation Elementary kinetic modeling Temperature programmed desorption (TPD) Density Functional Theory (DFT) | ||||||||||||||||||||
| Event Title: | 219th ECS Meeting | ||||||||||||||||||||
| Event Location: | Montreal, QC, Canada | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 1 May 2011 | ||||||||||||||||||||
| Event End Date: | 6 May 2011 | ||||||||||||||||||||
| Organizer: | The Electrochemical Society | ||||||||||||||||||||
| HGF - Research field: | Energy | ||||||||||||||||||||
| HGF - Program: | Efficient Energy Conversion (old) | ||||||||||||||||||||
| HGF - Program Themes: | E EV - Energy process technology (old) | ||||||||||||||||||||
| DLR - Research area: | Energy | ||||||||||||||||||||
| DLR - Program: | E EV - Energy process technology | ||||||||||||||||||||
| DLR - Research theme (Project): | E - Elektrochemische Prozesse (old) | ||||||||||||||||||||
| Location: | Stuttgart | ||||||||||||||||||||
| Institutes and Institutions: | Institute of Engineering Thermodynamics > Electrochemical Energy Technology | ||||||||||||||||||||
| Deposited By: | Yurkiv, Vitaliy | ||||||||||||||||||||
| Deposited On: | 12 Dec 2011 15:04 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 19:37 |
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