Synthesis of highly dispersed gold nanoparticles on Al2O3, SiO2, and TiO2 for the solvent-free oxidation of benzyl alcohol under low metal loadings
We reported the organic template-free synthesis of gold (Au) nanoparticles (NPs) supported on TiO 2 , SiO 2 , and Al 2 O 3 displaying uniform Au sizes and high dispersions over the supports. The Au-based catalysts were prepared by a deposition–precipitation method using urea as the precipitating age...
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| Veröffentlicht in: | Journal of materials science 2019-01, Vol.54 (1), p.238-251 |
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| creator | Gualteros, Jesus A. D. Garcia, Marco A. S. da Silva, Anderson G. M. Rodrigues, Thenner S. Cândido, Eduardo G. e Silva, Felipe A. Fonseca, Fabio C. Quiroz, Jhon de Oliveira, Daniela C. de Torresi, Susana I. Córdoba de Moura, Carla V. R. Camargo, Pedro H. C. de Moura, Edmilson M. |
| description | We reported the organic template-free synthesis of gold (Au) nanoparticles (NPs) supported on TiO
2
, SiO
2
, and Al
2
O
3
displaying uniform Au sizes and high dispersions over the supports. The Au-based catalysts were prepared by a deposition–precipitation method using urea as the precipitating agent. In the next step, the solvent-free oxidation of benzyl alcohol was investigated as model reaction using only 0.08–0.05 mol% of Au loadings and oxygen (O
2
) as the oxidant. Very high catalytic performances (TOF up to 443,624 h
−1
) could be achieved. Specifically, we investigated their catalytic activities, selectivity, and stabilities as well as the role of metal–support interactions over the performances. The conversion of the substrate was found to be associated with the nature of the employed support as the Au NPs presented similar sizes in all materials. A sub-stoichiometric amount of base was sufficient for the catalyst activation and the observation of the catalysts profile over the time enable insights on their recyclability performances. We believe this reported method represents a facile approach for the synthesis of uniform Au-supported catalysts displaying high performances. |
| doi_str_mv | 10.1007/s10853-018-2827-x |
| format | Article |
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2
, SiO
2
, and Al
2
O
3
displaying uniform Au sizes and high dispersions over the supports. The Au-based catalysts were prepared by a deposition–precipitation method using urea as the precipitating agent. In the next step, the solvent-free oxidation of benzyl alcohol was investigated as model reaction using only 0.08–0.05 mol% of Au loadings and oxygen (O
2
) as the oxidant. Very high catalytic performances (TOF up to 443,624 h
−1
) could be achieved. Specifically, we investigated their catalytic activities, selectivity, and stabilities as well as the role of metal–support interactions over the performances. The conversion of the substrate was found to be associated with the nature of the employed support as the Au NPs presented similar sizes in all materials. A sub-stoichiometric amount of base was sufficient for the catalyst activation and the observation of the catalysts profile over the time enable insights on their recyclability performances. We believe this reported method represents a facile approach for the synthesis of uniform Au-supported catalysts displaying high performances.</description><identifier>ISSN: 0022-2461</identifier><identifier>EISSN: 1573-4803</identifier><identifier>DOI: 10.1007/s10853-018-2827-x</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Alcohol ; Aluminum oxide ; Benzyl alcohol ; Catalysis ; Catalysts ; Characterization and Evaluation of Materials ; Chemical Routes to Materials ; Chemical synthesis ; Chemistry and Materials Science ; Classical Mechanics ; Crystallography and Scattering Methods ; Gold ; Materials Science ; Nanoparticles ; Oxidation ; Polymer Sciences ; Recyclability ; Selectivity ; Silicon dioxide ; Solid Mechanics ; Solvents ; Substrates ; Titanium dioxide</subject><ispartof>Journal of materials science, 2019-01, Vol.54 (1), p.238-251</ispartof><rights>Springer Science+Business Media, LLC, part of Springer Nature 2018</rights><rights>Copyright Springer Science & Business Media 2019</rights><rights>Journal of Materials Science is a copyright of Springer, (2018). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c410t-d215e89f55b6fd28646aed80794b0faeef08ea9d583019bcdf63e449086cf9553</citedby><cites>FETCH-LOGICAL-c410t-d215e89f55b6fd28646aed80794b0faeef08ea9d583019bcdf63e449086cf9553</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10853-018-2827-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10853-018-2827-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Gualteros, Jesus A. D.</creatorcontrib><creatorcontrib>Garcia, Marco A. S.</creatorcontrib><creatorcontrib>da Silva, Anderson G. M.</creatorcontrib><creatorcontrib>Rodrigues, Thenner S.</creatorcontrib><creatorcontrib>Cândido, Eduardo G.</creatorcontrib><creatorcontrib>e Silva, Felipe A.</creatorcontrib><creatorcontrib>Fonseca, Fabio C.</creatorcontrib><creatorcontrib>Quiroz, Jhon</creatorcontrib><creatorcontrib>de Oliveira, Daniela C.</creatorcontrib><creatorcontrib>de Torresi, Susana I. Córdoba</creatorcontrib><creatorcontrib>de Moura, Carla V. R.</creatorcontrib><creatorcontrib>Camargo, Pedro H. C.</creatorcontrib><creatorcontrib>de Moura, Edmilson M.</creatorcontrib><title>Synthesis of highly dispersed gold nanoparticles on Al2O3, SiO2, and TiO2 for the solvent-free oxidation of benzyl alcohol under low metal loadings</title><title>Journal of materials science</title><addtitle>J Mater Sci</addtitle><description>We reported the organic template-free synthesis of gold (Au) nanoparticles (NPs) supported on TiO
2
, SiO
2
, and Al
2
O
3
displaying uniform Au sizes and high dispersions over the supports. The Au-based catalysts were prepared by a deposition–precipitation method using urea as the precipitating agent. In the next step, the solvent-free oxidation of benzyl alcohol was investigated as model reaction using only 0.08–0.05 mol% of Au loadings and oxygen (O
2
) as the oxidant. Very high catalytic performances (TOF up to 443,624 h
−1
) could be achieved. Specifically, we investigated their catalytic activities, selectivity, and stabilities as well as the role of metal–support interactions over the performances. The conversion of the substrate was found to be associated with the nature of the employed support as the Au NPs presented similar sizes in all materials. A sub-stoichiometric amount of base was sufficient for the catalyst activation and the observation of the catalysts profile over the time enable insights on their recyclability performances. We believe this reported method represents a facile approach for the synthesis of uniform Au-supported catalysts displaying high performances.</description><subject>Alcohol</subject><subject>Aluminum oxide</subject><subject>Benzyl alcohol</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemical Routes to Materials</subject><subject>Chemical synthesis</subject><subject>Chemistry and Materials Science</subject><subject>Classical Mechanics</subject><subject>Crystallography and Scattering Methods</subject><subject>Gold</subject><subject>Materials Science</subject><subject>Nanoparticles</subject><subject>Oxidation</subject><subject>Polymer Sciences</subject><subject>Recyclability</subject><subject>Selectivity</subject><subject>Silicon dioxide</subject><subject>Solid Mechanics</subject><subject>Solvents</subject><subject>Substrates</subject><subject>Titanium dioxide</subject><issn>0022-2461</issn><issn>1573-4803</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kcFuEzEURS0EEqHwAewssa3h-c14xrOsKihIlbJoWVvO-Dlx5drBnkDCb_DDuAoSK1i9uzjnvsVl7K2E9xJg_FAlaNUJkFqgxlEcn7GVVGMneg3dc7YCQBTYD_Ile1XrAwCoEeWK_bo7pWVHNVSePd-F7S6euAt1T6WS49scHU825b0tS5gjNSzxq4jr7pLfhTVecpscv2-J-1x4q-I1x--UFuELEc_H4OwSmtTqN5R-niK3cc67HPkhOSo85h_8kRYbW7IupG19zV54Gyu9-XMv2NdPH--vP4vb9c2X66tbMfcSFuFQKtKTV2ozeId66AdLTsM49RvwlsiDJjs5pTuQ02Z2fuio7yfQw-wnpboL9u7cuy_524HqYh7yoaT20iCqaUCFuv8vJRGwk6rDRskzNZdcayFv9iU82nIyEszTQua8kGkLmaeFzLE5eHZqY9OWyt_mf0u_AWXDlIQ</recordid><startdate>20190101</startdate><enddate>20190101</enddate><creator>Gualteros, Jesus A. 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C.</creator><creator>de Moura, Edmilson M.</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20190101</creationdate><title>Synthesis of highly dispersed gold nanoparticles on Al2O3, SiO2, and TiO2 for the solvent-free oxidation of benzyl alcohol under low metal loadings</title><author>Gualteros, Jesus A. D. ; Garcia, Marco A. S. ; da Silva, Anderson G. M. ; Rodrigues, Thenner S. ; Cândido, Eduardo G. ; e Silva, Felipe A. ; Fonseca, Fabio C. ; Quiroz, Jhon ; de Oliveira, Daniela C. ; de Torresi, Susana I. Córdoba ; de Moura, Carla V. R. ; Camargo, Pedro H. C. ; de Moura, Edmilson M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c410t-d215e89f55b6fd28646aed80794b0faeef08ea9d583019bcdf63e449086cf9553</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Alcohol</topic><topic>Aluminum oxide</topic><topic>Benzyl alcohol</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemical Routes to Materials</topic><topic>Chemical synthesis</topic><topic>Chemistry and Materials Science</topic><topic>Classical Mechanics</topic><topic>Crystallography and Scattering Methods</topic><topic>Gold</topic><topic>Materials Science</topic><topic>Nanoparticles</topic><topic>Oxidation</topic><topic>Polymer Sciences</topic><topic>Recyclability</topic><topic>Selectivity</topic><topic>Silicon dioxide</topic><topic>Solid Mechanics</topic><topic>Solvents</topic><topic>Substrates</topic><topic>Titanium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gualteros, Jesus A. D.</creatorcontrib><creatorcontrib>Garcia, Marco A. S.</creatorcontrib><creatorcontrib>da Silva, Anderson G. M.</creatorcontrib><creatorcontrib>Rodrigues, Thenner S.</creatorcontrib><creatorcontrib>Cândido, Eduardo G.</creatorcontrib><creatorcontrib>e Silva, Felipe A.</creatorcontrib><creatorcontrib>Fonseca, Fabio C.</creatorcontrib><creatorcontrib>Quiroz, Jhon</creatorcontrib><creatorcontrib>de Oliveira, Daniela C.</creatorcontrib><creatorcontrib>de Torresi, Susana I. Córdoba</creatorcontrib><creatorcontrib>de Moura, Carla V. R.</creatorcontrib><creatorcontrib>Camargo, Pedro H. 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D.</au><au>Garcia, Marco A. S.</au><au>da Silva, Anderson G. M.</au><au>Rodrigues, Thenner S.</au><au>Cândido, Eduardo G.</au><au>e Silva, Felipe A.</au><au>Fonseca, Fabio C.</au><au>Quiroz, Jhon</au><au>de Oliveira, Daniela C.</au><au>de Torresi, Susana I. Córdoba</au><au>de Moura, Carla V. R.</au><au>Camargo, Pedro H. C.</au><au>de Moura, Edmilson M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of highly dispersed gold nanoparticles on Al2O3, SiO2, and TiO2 for the solvent-free oxidation of benzyl alcohol under low metal loadings</atitle><jtitle>Journal of materials science</jtitle><stitle>J Mater Sci</stitle><date>2019-01-01</date><risdate>2019</risdate><volume>54</volume><issue>1</issue><spage>238</spage><epage>251</epage><pages>238-251</pages><issn>0022-2461</issn><eissn>1573-4803</eissn><abstract>We reported the organic template-free synthesis of gold (Au) nanoparticles (NPs) supported on TiO
2
, SiO
2
, and Al
2
O
3
displaying uniform Au sizes and high dispersions over the supports. The Au-based catalysts were prepared by a deposition–precipitation method using urea as the precipitating agent. In the next step, the solvent-free oxidation of benzyl alcohol was investigated as model reaction using only 0.08–0.05 mol% of Au loadings and oxygen (O
2
) as the oxidant. Very high catalytic performances (TOF up to 443,624 h
−1
) could be achieved. Specifically, we investigated their catalytic activities, selectivity, and stabilities as well as the role of metal–support interactions over the performances. The conversion of the substrate was found to be associated with the nature of the employed support as the Au NPs presented similar sizes in all materials. A sub-stoichiometric amount of base was sufficient for the catalyst activation and the observation of the catalysts profile over the time enable insights on their recyclability performances. We believe this reported method represents a facile approach for the synthesis of uniform Au-supported catalysts displaying high performances.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s10853-018-2827-x</doi><tpages>14</tpages></addata></record> |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Alcohol Aluminum oxide Benzyl alcohol Catalysis Catalysts Characterization and Evaluation of Materials Chemical Routes to Materials Chemical synthesis Chemistry and Materials Science Classical Mechanics Crystallography and Scattering Methods Gold Materials Science Nanoparticles Oxidation Polymer Sciences Recyclability Selectivity Silicon dioxide Solid Mechanics Solvents Substrates Titanium dioxide |
| title | Synthesis of highly dispersed gold nanoparticles on Al2O3, SiO2, and TiO2 for the solvent-free oxidation of benzyl alcohol under low metal loadings |
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