Comparison of the Catalytic Performance and Carbon Monoxide Sensing Behavior of Pd‐SnO 2 Core@Shell Nanocomposites
The catalytic activity of Pd‐SnO 2 core@shell nanocomposites in the oxidation of CO and their CO‐sensing behavior were compared. For this purpose, Pd particles were placed on the inside and the outside of SnO 2 hollow spheres, as demonstrated by electron tomography, X‐ray photoelectron spectroscopy,...
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| Veröffentlicht in: | ChemCatChem 2017-02, Vol.9 (3), p.407-413 |
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| creator | Ogel, Elen Müller, Sabrina A. Sackmann, André Gyger, Fabian Bockstaller, Pascal Brose, Eugen Casapu, Maria Schöttner, Ludger Gerthsen, Dagmar Feldmann, Claus Grunwaldt, Jan‐Dierk |
| description | The catalytic activity of Pd‐SnO
2
core@shell nanocomposites in the oxidation of CO and their CO‐sensing behavior were compared. For this purpose, Pd particles were placed on the inside and the outside of SnO
2
hollow spheres, as demonstrated by electron tomography, X‐ray photoelectron spectroscopy, and X‐ray absorption spectroscopy. Both the sensing and catalytic effect were studied in a systematic manner on such nanocomposites, and striking differences in the catalytic performance of the nanocomposites in CO oxidation and CO and H
2
sensing were found. At low temperatures, SnO
2
@Pd was found to be a good sensor, and the light‐off temperature was significantly lower than that of Pd@SnO
2
. Above the ignition temperature, CO was probably rapidly removed from the gas so that the sensing effect disappeared. This demonstrated that understanding of the sensing and catalytic behavior can help in unraveling the functional properties of core@shell and Pd‐SnO
2
nanocomposites in more detail. |
| doi_str_mv | 10.1002/cctc.201601132 |
| format | Article |
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2
core@shell nanocomposites in the oxidation of CO and their CO‐sensing behavior were compared. For this purpose, Pd particles were placed on the inside and the outside of SnO
2
hollow spheres, as demonstrated by electron tomography, X‐ray photoelectron spectroscopy, and X‐ray absorption spectroscopy. Both the sensing and catalytic effect were studied in a systematic manner on such nanocomposites, and striking differences in the catalytic performance of the nanocomposites in CO oxidation and CO and H
2
sensing were found. At low temperatures, SnO
2
@Pd was found to be a good sensor, and the light‐off temperature was significantly lower than that of Pd@SnO
2
. Above the ignition temperature, CO was probably rapidly removed from the gas so that the sensing effect disappeared. This demonstrated that understanding of the sensing and catalytic behavior can help in unraveling the functional properties of core@shell and Pd‐SnO
2
nanocomposites in more detail.</description><identifier>ISSN: 1867-3880</identifier><identifier>EISSN: 1867-3899</identifier><identifier>DOI: 10.1002/cctc.201601132</identifier><language>eng</language><ispartof>ChemCatChem, 2017-02, Vol.9 (3), p.407-413</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c842-d8470ded887cae4807253693f74610d7451e42d0d30943949604355c236531603</citedby><cites>FETCH-LOGICAL-c842-d8470ded887cae4807253693f74610d7451e42d0d30943949604355c236531603</cites><orcidid>0000-0003-3606-0956</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids></links><search><creatorcontrib>Ogel, Elen</creatorcontrib><creatorcontrib>Müller, Sabrina A.</creatorcontrib><creatorcontrib>Sackmann, André</creatorcontrib><creatorcontrib>Gyger, Fabian</creatorcontrib><creatorcontrib>Bockstaller, Pascal</creatorcontrib><creatorcontrib>Brose, Eugen</creatorcontrib><creatorcontrib>Casapu, Maria</creatorcontrib><creatorcontrib>Schöttner, Ludger</creatorcontrib><creatorcontrib>Gerthsen, Dagmar</creatorcontrib><creatorcontrib>Feldmann, Claus</creatorcontrib><creatorcontrib>Grunwaldt, Jan‐Dierk</creatorcontrib><title>Comparison of the Catalytic Performance and Carbon Monoxide Sensing Behavior of Pd‐SnO 2 Core@Shell Nanocomposites</title><title>ChemCatChem</title><description>The catalytic activity of Pd‐SnO
2
core@shell nanocomposites in the oxidation of CO and their CO‐sensing behavior were compared. For this purpose, Pd particles were placed on the inside and the outside of SnO
2
hollow spheres, as demonstrated by electron tomography, X‐ray photoelectron spectroscopy, and X‐ray absorption spectroscopy. Both the sensing and catalytic effect were studied in a systematic manner on such nanocomposites, and striking differences in the catalytic performance of the nanocomposites in CO oxidation and CO and H
2
sensing were found. At low temperatures, SnO
2
@Pd was found to be a good sensor, and the light‐off temperature was significantly lower than that of Pd@SnO
2
. Above the ignition temperature, CO was probably rapidly removed from the gas so that the sensing effect disappeared. This demonstrated that understanding of the sensing and catalytic behavior can help in unraveling the functional properties of core@shell and Pd‐SnO
2
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2
core@shell nanocomposites in the oxidation of CO and their CO‐sensing behavior were compared. For this purpose, Pd particles were placed on the inside and the outside of SnO
2
hollow spheres, as demonstrated by electron tomography, X‐ray photoelectron spectroscopy, and X‐ray absorption spectroscopy. Both the sensing and catalytic effect were studied in a systematic manner on such nanocomposites, and striking differences in the catalytic performance of the nanocomposites in CO oxidation and CO and H
2
sensing were found. At low temperatures, SnO
2
@Pd was found to be a good sensor, and the light‐off temperature was significantly lower than that of Pd@SnO
2
. Above the ignition temperature, CO was probably rapidly removed from the gas so that the sensing effect disappeared. This demonstrated that understanding of the sensing and catalytic behavior can help in unraveling the functional properties of core@shell and Pd‐SnO
2
nanocomposites in more detail.</abstract><doi>10.1002/cctc.201601132</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-3606-0956</orcidid></addata></record> |
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| language | eng |
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| source | Wiley Online Library All Journals |
| title | Comparison of the Catalytic Performance and Carbon Monoxide Sensing Behavior of Pd‐SnO 2 Core@Shell Nanocomposites |
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