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STM study of the growth of cerium oxide nanoparticles on Au(1 1 1)
The morphology and structure of nanosized ceria particles prepared by several in vacuo deposition methods on a Au(1 1 1) template were investigated by scanning tunneling microscopy. Cerium metal nanoparticles on gold have limited reactivity toward molecular oxygen and NO 2, due to the formation of C...
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| Published in: | Surface science 2008-11, Vol.602 (21), p.3272-3278 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c427t-b2644dd3bee21490803c9c7e4b1d7a3505f2f873374ae6018841a56f30faea253 |
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| cites | cdi_FETCH-LOGICAL-c427t-b2644dd3bee21490803c9c7e4b1d7a3505f2f873374ae6018841a56f30faea253 |
| container_end_page | 3278 |
| container_issue | 21 |
| container_start_page | 3272 |
| container_title | Surface science |
| container_volume | 602 |
| creator | Ma, Shuguo Rodriguez, Jose Hrbek, Jan |
| description | The morphology and structure of nanosized ceria particles prepared by several
in vacuo deposition methods on a Au(1
1
1) template were investigated by scanning tunneling microscopy. Cerium metal nanoparticles on gold have limited reactivity toward molecular oxygen and NO
2, due to the formation of Ce–Au alloys, and their oxidation leads to formation of non-uniform substoichiometric three-dimensional (3D) oxide particles. Cerium metal deposition onto condensed multilayers of water or NO
2 generates fully oxidized but poorly ordered ceria particles after annealing. Ultra-thin flat and ordered ceria nanoislands were prepared by deposition of cerium metal on the gold surface at elevated temperatures
under an oxygen background pressure. Atomically resolved images show an oxygen-terminated surface of CeO
2(1
1
1) with oxygen vacancies. |
| doi_str_mv | 10.1016/j.susc.2008.08.021 |
| format | article |
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in vacuo deposition methods on a Au(1
1
1) template were investigated by scanning tunneling microscopy. Cerium metal nanoparticles on gold have limited reactivity toward molecular oxygen and NO
2, due to the formation of Ce–Au alloys, and their oxidation leads to formation of non-uniform substoichiometric three-dimensional (3D) oxide particles. Cerium metal deposition onto condensed multilayers of water or NO
2 generates fully oxidized but poorly ordered ceria particles after annealing. Ultra-thin flat and ordered ceria nanoislands were prepared by deposition of cerium metal on the gold surface at elevated temperatures
under an oxygen background pressure. Atomically resolved images show an oxygen-terminated surface of CeO
2(1
1
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in vacuo deposition methods on a Au(1
1
1) template were investigated by scanning tunneling microscopy. Cerium metal nanoparticles on gold have limited reactivity toward molecular oxygen and NO
2, due to the formation of Ce–Au alloys, and their oxidation leads to formation of non-uniform substoichiometric three-dimensional (3D) oxide particles. Cerium metal deposition onto condensed multilayers of water or NO
2 generates fully oxidized but poorly ordered ceria particles after annealing. Ultra-thin flat and ordered ceria nanoislands were prepared by deposition of cerium metal on the gold surface at elevated temperatures
under an oxygen background pressure. Atomically resolved images show an oxygen-terminated surface of CeO
2(1
1
1) with oxygen vacancies.</description><subject>Cerium oxide</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Gold</subject><subject>Growth</subject><subject>Physics</subject><subject>Scanning tunneling microscopy</subject><subject>Sintering</subject><issn>0039-6028</issn><issn>1879-2758</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9UMtOwzAQtBBIlMIPcPIFBIcEv5I4EpdS8ZKKOFDOluusqas0LnYC9O9J1IojuyOtVpqZ1Q5C55SklND8ZpXGLpqUESLTAYweoBGVRZmwIpOHaEQIL5OcMHmMTmJckb5EmY3Q3dv8Bce2q7bYW9wuAX8E_90uh81AcN0a-x9XAW504zc6tM7UELFv8KS7orjv61N0ZHUd4Ww_x-j94X4-fUpmr4_P08ksMYIVbbJguRBVxRcAjIqSSMJNaQoQC1oVmmcks8zKgvNCaMgJlVJQneWWE6tBs4yP0eXOdxP8ZwexVWsXDdS1bsB3UfGcFrxkvCeyHdEEH2MAqzbBrXXYKkrUEJdaqSEuNcSlBjDaiy727joaXdugG-Pin5IRmTOeDbzbHQ_6V78cBBWNg8ZA5QKYVlXe_XfmF0yLfgI</recordid><startdate>20081101</startdate><enddate>20081101</enddate><creator>Ma, Shuguo</creator><creator>Rodriguez, Jose</creator><creator>Hrbek, Jan</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20081101</creationdate><title>STM study of the growth of cerium oxide nanoparticles on Au(1 1 1)</title><author>Ma, Shuguo ; Rodriguez, Jose ; Hrbek, Jan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c427t-b2644dd3bee21490803c9c7e4b1d7a3505f2f873374ae6018841a56f30faea253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Cerium oxide</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Gold</topic><topic>Growth</topic><topic>Physics</topic><topic>Scanning tunneling microscopy</topic><topic>Sintering</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Shuguo</creatorcontrib><creatorcontrib>Rodriguez, Jose</creatorcontrib><creatorcontrib>Hrbek, Jan</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Surface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Shuguo</au><au>Rodriguez, Jose</au><au>Hrbek, Jan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>STM study of the growth of cerium oxide nanoparticles on Au(1 1 1)</atitle><jtitle>Surface science</jtitle><date>2008-11-01</date><risdate>2008</risdate><volume>602</volume><issue>21</issue><spage>3272</spage><epage>3278</epage><pages>3272-3278</pages><issn>0039-6028</issn><eissn>1879-2758</eissn><coden>SUSCAS</coden><abstract>The morphology and structure of nanosized ceria particles prepared by several
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1
1) template were investigated by scanning tunneling microscopy. Cerium metal nanoparticles on gold have limited reactivity toward molecular oxygen and NO
2, due to the formation of Ce–Au alloys, and their oxidation leads to formation of non-uniform substoichiometric three-dimensional (3D) oxide particles. Cerium metal deposition onto condensed multilayers of water or NO
2 generates fully oxidized but poorly ordered ceria particles after annealing. Ultra-thin flat and ordered ceria nanoislands were prepared by deposition of cerium metal on the gold surface at elevated temperatures
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1
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| identifier | ISSN: 0039-6028 |
| ispartof | Surface science, 2008-11, Vol.602 (21), p.3272-3278 |
| issn | 0039-6028 1879-2758 |
| language | eng |
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| source | ScienceDirect Freedom Collection |
| subjects | Cerium oxide Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Gold Growth Physics Scanning tunneling microscopy Sintering |
| title | STM study of the growth of cerium oxide nanoparticles on Au(1 1 1) |
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