Looking by grazing incidence small angle x-ray scattering at gold nanoparticles supported on rutile TiO2(110) during CO oxidation
The catalytic activity of oxide-supported gold nanoparticles depends crucially on their size. The present work describes a dedicated set-up in which particle size is determined by grazing incidence small angle x-ray scattering (GISAXS) and reactivity is analysed via a mass spectrometer. Catalyticall...
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| Veröffentlicht in: | Gold Bulletin 2008-01, Vol.41 (2), p.159-166 |
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| container_title | Gold Bulletin |
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| creator | Saint-Lager, M. C. Bailly, A Mantilla, M. Garaudée, S. Lazzari, R. Dolle, P. Robach, O. Jupille, J. Laoufi, I. Taunier, P. |
| description | The catalytic activity of oxide-supported gold nanoparticles depends crucially on their size. The present work describes a dedicated set-up in which particle size is determined by grazing incidence small angle x-ray scattering (GISAXS) and reactivity is analysed via a mass spectrometer. Catalytically active gold nanoparticles supported on TiO
2
(110) of size ranging between 2.4 and 5 nm were characterized during the CO oxidation at pressures in the range 0.1–100 mbar. The growth was found 3D and the particles were best modelled by a truncated sphere. The reaction rate per Au atom measured at 470 K was seen to increase in a monotone manner as the cluster size decreases, without reaching any maximum. Particles of size lower than 3 nm were stable under oxygen but sintering occurs when CO is added at 470K. That dimension coincides with the switch which was previously observed from nucleation-growth, with particles pinned on defects, to coalescence where particles become independent of defects. |
| doi_str_mv | 10.1007/BF03216593 |
| format | Article |
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2
(110) of size ranging between 2.4 and 5 nm were characterized during the CO oxidation at pressures in the range 0.1–100 mbar. The growth was found 3D and the particles were best modelled by a truncated sphere. The reaction rate per Au atom measured at 470 K was seen to increase in a monotone manner as the cluster size decreases, without reaching any maximum. Particles of size lower than 3 nm were stable under oxygen but sintering occurs when CO is added at 470K. That dimension coincides with the switch which was previously observed from nucleation-growth, with particles pinned on defects, to coalescence where particles become independent of defects.</description><identifier>ISSN: 0017-1557</identifier><identifier>EISSN: 2190-7579</identifier><identifier>DOI: 10.1007/BF03216593</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Chemistry and Materials Science ; Condensed Matter ; Materials Science ; Metallic Materials ; Other ; Physics ; Scientific Papers</subject><ispartof>Gold Bulletin, 2008-01, Vol.41 (2), p.159-166</ispartof><rights>World Gold Council 2008</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-7a98676707b506654193bda0241c659006031f31d1e55702553a036b492b440b3</citedby><cites>FETCH-LOGICAL-c337t-7a98676707b506654193bda0241c659006031f31d1e55702553a036b492b440b3</cites><orcidid>0000-0003-1333-7668 ; 0000-0003-2354-1953</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/BF03216593$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/BF03216593$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>230,314,776,780,881,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://hal.science/hal-00703353$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Saint-Lager, M. C.</creatorcontrib><creatorcontrib>Bailly, A</creatorcontrib><creatorcontrib>Mantilla, M.</creatorcontrib><creatorcontrib>Garaudée, S.</creatorcontrib><creatorcontrib>Lazzari, R.</creatorcontrib><creatorcontrib>Dolle, P.</creatorcontrib><creatorcontrib>Robach, O.</creatorcontrib><creatorcontrib>Jupille, J.</creatorcontrib><creatorcontrib>Laoufi, I.</creatorcontrib><creatorcontrib>Taunier, P.</creatorcontrib><title>Looking by grazing incidence small angle x-ray scattering at gold nanoparticles supported on rutile TiO2(110) during CO oxidation</title><title>Gold Bulletin</title><addtitle>Gold Bull</addtitle><description>The catalytic activity of oxide-supported gold nanoparticles depends crucially on their size. The present work describes a dedicated set-up in which particle size is determined by grazing incidence small angle x-ray scattering (GISAXS) and reactivity is analysed via a mass spectrometer. Catalytically active gold nanoparticles supported on TiO
2
(110) of size ranging between 2.4 and 5 nm were characterized during the CO oxidation at pressures in the range 0.1–100 mbar. The growth was found 3D and the particles were best modelled by a truncated sphere. The reaction rate per Au atom measured at 470 K was seen to increase in a monotone manner as the cluster size decreases, without reaching any maximum. Particles of size lower than 3 nm were stable under oxygen but sintering occurs when CO is added at 470K. That dimension coincides with the switch which was previously observed from nucleation-growth, with particles pinned on defects, to coalescence where particles become independent of defects.</description><subject>Chemistry and Materials Science</subject><subject>Condensed Matter</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Other</subject><subject>Physics</subject><subject>Scientific Papers</subject><issn>0017-1557</issn><issn>2190-7579</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><recordid>eNptkLFOwzAQhi0EElXpwhN4pKDAXRzHZCwVpUiRupQ5chI3uKR2ZCeoZePNSSiCBS9nnb7_pO8n5BLhFgHE3cMCWIgxT9gJGYWYQCC4SE7JCABFgJyLczLxfgv9SyJkGI_IZ2rtmzYVzQ-0cvJj-GpT6FKZQlG_k3VNpalqRfeBkwfqC9m2yg2YbGll65IaaWwjXauLWnnqu6axrlUltYa6rtV9dK1X4RUiTGnZfUfnK2r3upSttuaCnG1k7dXkZ47Jy-JxPV8G6erpeT5Lg4Ix0QZCJvexiAWInEMc8wgTlpcSwgiLXhkgBoYbhiWqXhRCzpkEFudREuZRBDkbk-nx7quss8bpnXSHzEqdLWdpNuz6CoExzt6xZ6-PbOGs905tfgMI2dB19td1D98cYd8McsplW9s507v8R38BWD58QQ</recordid><startdate>20080101</startdate><enddate>20080101</enddate><creator>Saint-Lager, M. C.</creator><creator>Bailly, A</creator><creator>Mantilla, M.</creator><creator>Garaudée, S.</creator><creator>Lazzari, R.</creator><creator>Dolle, P.</creator><creator>Robach, O.</creator><creator>Jupille, J.</creator><creator>Laoufi, I.</creator><creator>Taunier, P.</creator><general>Springer-Verlag</general><general>World Gold Council</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0003-1333-7668</orcidid><orcidid>https://orcid.org/0000-0003-2354-1953</orcidid></search><sort><creationdate>20080101</creationdate><title>Looking by grazing incidence small angle x-ray scattering at gold nanoparticles supported on rutile TiO2(110) during CO oxidation</title><author>Saint-Lager, M. C. ; Bailly, A ; Mantilla, M. ; Garaudée, S. ; Lazzari, R. ; Dolle, P. ; Robach, O. ; Jupille, J. ; Laoufi, I. ; Taunier, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-7a98676707b506654193bda0241c659006031f31d1e55702553a036b492b440b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Chemistry and Materials Science</topic><topic>Condensed Matter</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Other</topic><topic>Physics</topic><topic>Scientific Papers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saint-Lager, M. C.</creatorcontrib><creatorcontrib>Bailly, A</creatorcontrib><creatorcontrib>Mantilla, M.</creatorcontrib><creatorcontrib>Garaudée, S.</creatorcontrib><creatorcontrib>Lazzari, R.</creatorcontrib><creatorcontrib>Dolle, P.</creatorcontrib><creatorcontrib>Robach, O.</creatorcontrib><creatorcontrib>Jupille, J.</creatorcontrib><creatorcontrib>Laoufi, I.</creatorcontrib><creatorcontrib>Taunier, P.</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Gold Bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saint-Lager, M. C.</au><au>Bailly, A</au><au>Mantilla, M.</au><au>Garaudée, S.</au><au>Lazzari, R.</au><au>Dolle, P.</au><au>Robach, O.</au><au>Jupille, J.</au><au>Laoufi, I.</au><au>Taunier, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Looking by grazing incidence small angle x-ray scattering at gold nanoparticles supported on rutile TiO2(110) during CO oxidation</atitle><jtitle>Gold Bulletin</jtitle><stitle>Gold Bull</stitle><date>2008-01-01</date><risdate>2008</risdate><volume>41</volume><issue>2</issue><spage>159</spage><epage>166</epage><pages>159-166</pages><issn>0017-1557</issn><eissn>2190-7579</eissn><abstract>The catalytic activity of oxide-supported gold nanoparticles depends crucially on their size. The present work describes a dedicated set-up in which particle size is determined by grazing incidence small angle x-ray scattering (GISAXS) and reactivity is analysed via a mass spectrometer. Catalytically active gold nanoparticles supported on TiO
2
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| subjects | Chemistry and Materials Science Condensed Matter Materials Science Metallic Materials Other Physics Scientific Papers |
| title | Looking by grazing incidence small angle x-ray scattering at gold nanoparticles supported on rutile TiO2(110) during CO oxidation |
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