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Direct comparison of the reactivity of the non-oxidic phase of Ru(0001) and the RuO2 phase in the CO oxidation reaction

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Title: Direct comparison of the reactivity of the non-oxidic phase of Ru(0001) and the RuO2 phase in the CO oxidation reaction
Authors: Over, H.1 http://www.uni-giessen.de/cms/fbz/fb08/chemie/physchem/ag-prof-dr-herbert-over, Balmes, O.2, Lundgren, E.3
Source: Surface Science. Jan2009, Vol. 603 Issue 2, p298-303. 6p.
Subjects: Reactivity (Chemistry), Surface chemistry, X-ray diffraction, Oxidation, Mass spectrometry, Catalysis, Ruthenium compounds, Carbon monoxide
Abstract: Abstract: Applying in situ surface X-ray diffraction (SXRD) together with on-line mass spectrometry during the CO oxidation over Ru(0001) allows a direct comparison of the reactivity of the non-oxidic state with that of the RuO2(110) covered surface. This comparison reveals that the RuO2(110) surface is a catalytically active phase at least as active as the non-oxidic phase. At high CO and O2 pressures of 200mbar and temperatures above 550K, the CO oxidation reaction does not proceed isothermally on the RuO2(110) surface. The released reaction heat leads rather to an increase of the sample temperature of up to 130K accompanied by a self-acceleration of the CO oxidation reaction. [Copyright &y& Elsevier]
Copyright of Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 36190250
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Direct comparison of the reactivity of the non-oxidic phase of Ru(0001) and the RuO<subscript>2</subscript> phase in the CO oxidation reaction
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  Data: <searchLink fieldCode="AR" term="%22Over%2C+H%2E%22">Over, H.</searchLink><relatesTo>1</relatesTo><i> http://www.uni-giessen.de/cms/fbz/fb08/chemie/physchem/ag-prof-dr-herbert-over</i><br /><searchLink fieldCode="AR" term="%22Balmes%2C+O%2E%22">Balmes, O.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Lundgren%2C+E%2E%22">Lundgren, E.</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Surface+Science%22">Surface Science</searchLink>. Jan2009, Vol. 603 Issue 2, p298-303. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Reactivity+%28Chemistry%29%22">Reactivity (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+chemistry%22">Surface chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+spectrometry%22">Mass spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysis%22">Catalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Ruthenium+compounds%22">Ruthenium compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+monoxide%22">Carbon monoxide</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract: Applying in situ surface X-ray diffraction (SXRD) together with on-line mass spectrometry during the CO oxidation over Ru(0001) allows a direct comparison of the reactivity of the non-oxidic state with that of the RuO2(110) covered surface. This comparison reveals that the RuO2(110) surface is a catalytically active phase at least as active as the non-oxidic phase. At high CO and O2 pressures of 200mbar and temperatures above 550K, the CO oxidation reaction does not proceed isothermally on the RuO2(110) surface. The released reaction heat leads rather to an increase of the sample temperature of up to 130K accompanied by a self-acceleration of the CO oxidation reaction. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.susc.2008.11.012
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      – Code: eng
        Text: English
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      – SubjectFull: Surface chemistry
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      – SubjectFull: X-ray diffraction
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      – SubjectFull: Oxidation
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      – SubjectFull: Mass spectrometry
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      – SubjectFull: Catalysis
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      – SubjectFull: Ruthenium compounds
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      – SubjectFull: Carbon monoxide
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      – TitleFull: Direct comparison of the reactivity of the non-oxidic phase of Ru(0001) and the RuO2 phase in the CO oxidation reaction
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              Text: Jan2009
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