Selective oxidation of toluene to benzaldehyde in liquid phase over CoAl oxides prepared from hydrotalcite-like precursors
CoAl oxides were prepared from the calcination of CoAl layered double hydroxides (LDHs, Co/Al = 2, 3 and 4) and applied to the selective oxidation of toluene to benzaldehyde using tert -butylhydroperoxide as the oxidant. These samples were characterized by XRD, SEM, BET, DR-UV–Vis, XPS, FTIR and CO...
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| Veröffentlicht in: | Reaction kinetics, mechanisms and catalysis mechanisms and catalysis, 2015-06, Vol.115 (1), p.341-353 |
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| container_title | Reaction kinetics, mechanisms and catalysis |
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| creator | Zhou, Weiyou Huang, Ke Cao, Mingming Sun, Fu’an He, Mingyang Chen, Zaixin |
| description | CoAl oxides were prepared from the calcination of CoAl layered double hydroxides (LDHs, Co/Al = 2, 3 and 4) and applied to the selective oxidation of toluene to benzaldehyde using
tert
-butylhydroperoxide as the oxidant. These samples were characterized by XRD, SEM, BET, DR-UV–Vis, XPS, FTIR and CO
2
-TPD techniques to explain their catalytic properties. The influence of various reaction parameters, such as reaction temperature, reaction time, content of catalyst, substrate/oxidant mole ratio and nature of solvent on the activity and selectivity of aldehyde was evaluated. Co
4
Al oxide showed a maximum conversion of toluene of 8.2 % with 77.6 % selectivity towards benzaldehyde under the optimized conditions. The moderate basic sites on the CoAl oxides and the increased Co
3
O
4
content may be responsible for the catalytic activity and selectivity. Repeated runs showed that the catalyst was stable for at least five cycles without obvious changes of catalytic activity and selectivity. |
| doi_str_mv | 10.1007/s11144-015-0833-4 |
| format | Article |
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tert
-butylhydroperoxide as the oxidant. These samples were characterized by XRD, SEM, BET, DR-UV–Vis, XPS, FTIR and CO
2
-TPD techniques to explain their catalytic properties. The influence of various reaction parameters, such as reaction temperature, reaction time, content of catalyst, substrate/oxidant mole ratio and nature of solvent on the activity and selectivity of aldehyde was evaluated. Co
4
Al oxide showed a maximum conversion of toluene of 8.2 % with 77.6 % selectivity towards benzaldehyde under the optimized conditions. The moderate basic sites on the CoAl oxides and the increased Co
3
O
4
content may be responsible for the catalytic activity and selectivity. Repeated runs showed that the catalyst was stable for at least five cycles without obvious changes of catalytic activity and selectivity.</description><identifier>ISSN: 1878-5190</identifier><identifier>EISSN: 1878-5204</identifier><identifier>DOI: 10.1007/s11144-015-0833-4</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Benzaldehyde ; Catalysis ; Catalysts ; Chemistry ; Chemistry and Materials Science ; Coal ; Industrial Chemistry/Chemical Engineering ; Oxidants ; Oxidation ; Oxides ; Physical Chemistry ; Selectivity ; Toluene</subject><ispartof>Reaction kinetics, mechanisms and catalysis, 2015-06, Vol.115 (1), p.341-353</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-76c5abf78e86272957b04abfc646eea3529647608f4e19e161ef99306b22f0603</citedby><cites>FETCH-LOGICAL-c391t-76c5abf78e86272957b04abfc646eea3529647608f4e19e161ef99306b22f0603</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/s11144-015-0833-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11144-015-0833-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Zhou, Weiyou</creatorcontrib><creatorcontrib>Huang, Ke</creatorcontrib><creatorcontrib>Cao, Mingming</creatorcontrib><creatorcontrib>Sun, Fu’an</creatorcontrib><creatorcontrib>He, Mingyang</creatorcontrib><creatorcontrib>Chen, Zaixin</creatorcontrib><title>Selective oxidation of toluene to benzaldehyde in liquid phase over CoAl oxides prepared from hydrotalcite-like precursors</title><title>Reaction kinetics, mechanisms and catalysis</title><addtitle>Reac Kinet Mech Cat</addtitle><description>CoAl oxides were prepared from the calcination of CoAl layered double hydroxides (LDHs, Co/Al = 2, 3 and 4) and applied to the selective oxidation of toluene to benzaldehyde using
tert
-butylhydroperoxide as the oxidant. These samples were characterized by XRD, SEM, BET, DR-UV–Vis, XPS, FTIR and CO
2
-TPD techniques to explain their catalytic properties. The influence of various reaction parameters, such as reaction temperature, reaction time, content of catalyst, substrate/oxidant mole ratio and nature of solvent on the activity and selectivity of aldehyde was evaluated. Co
4
Al oxide showed a maximum conversion of toluene of 8.2 % with 77.6 % selectivity towards benzaldehyde under the optimized conditions. The moderate basic sites on the CoAl oxides and the increased Co
3
O
4
content may be responsible for the catalytic activity and selectivity. Repeated runs showed that the catalyst was stable for at least five cycles without obvious changes of catalytic activity and selectivity.</description><subject>Benzaldehyde</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Coal</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Oxidants</subject><subject>Oxidation</subject><subject>Oxides</subject><subject>Physical Chemistry</subject><subject>Selectivity</subject><subject>Toluene</subject><issn>1878-5190</issn><issn>1878-5204</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kMtOwzAQRS0EElXpB7Dzkk3Ar9jJsqp4SZVYAGvLSSbUxY1TO6lovx6XwpbZ3NHMPSPNReiakltKiLqLlFIhMkLzjBScZ-IMTWihiixnRJz_9bQkl2gW45qk4kwVeTlBh1dwUA92B9h_2cYM1nfYt3jwboQOkuIKuoNxDaz2DWDbYWe3o21wvzIxQTsIeOHn7geHiPsAvQnQ4Db4DU5M8INxtR0gc_YTjvt6DNGHeIUuWuMizH51it4f7t8WT9ny5fF5MV9mNS_pkClZ56ZqVQGFZIqVuaqISINaCglgeM5KKZQkRSuAlkAlhbYsOZEVYy2RhE_RzeluH_x2hDjojY01OGc68GPUVHFCBGc5TVZ6stbBxxig1X2wGxP2mhJ9jFqfotYpan2MWovEsBMTk7f7gKDXfgxd-ugf6BuYmoKy</recordid><startdate>20150601</startdate><enddate>20150601</enddate><creator>Zhou, Weiyou</creator><creator>Huang, Ke</creator><creator>Cao, Mingming</creator><creator>Sun, Fu’an</creator><creator>He, Mingyang</creator><creator>Chen, Zaixin</creator><general>Springer Netherlands</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20150601</creationdate><title>Selective oxidation of toluene to benzaldehyde in liquid phase over CoAl oxides prepared from hydrotalcite-like precursors</title><author>Zhou, Weiyou ; Huang, Ke ; Cao, Mingming ; Sun, Fu’an ; He, Mingyang ; Chen, Zaixin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-76c5abf78e86272957b04abfc646eea3529647608f4e19e161ef99306b22f0603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Benzaldehyde</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Coal</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Oxidants</topic><topic>Oxidation</topic><topic>Oxides</topic><topic>Physical Chemistry</topic><topic>Selectivity</topic><topic>Toluene</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhou, Weiyou</creatorcontrib><creatorcontrib>Huang, Ke</creatorcontrib><creatorcontrib>Cao, Mingming</creatorcontrib><creatorcontrib>Sun, Fu’an</creatorcontrib><creatorcontrib>He, Mingyang</creatorcontrib><creatorcontrib>Chen, Zaixin</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Reaction kinetics, mechanisms and catalysis</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhou, Weiyou</au><au>Huang, Ke</au><au>Cao, Mingming</au><au>Sun, Fu’an</au><au>He, Mingyang</au><au>Chen, Zaixin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Selective oxidation of toluene to benzaldehyde in liquid phase over CoAl oxides prepared from hydrotalcite-like precursors</atitle><jtitle>Reaction kinetics, mechanisms and catalysis</jtitle><stitle>Reac Kinet Mech Cat</stitle><date>2015-06-01</date><risdate>2015</risdate><volume>115</volume><issue>1</issue><spage>341</spage><epage>353</epage><pages>341-353</pages><issn>1878-5190</issn><eissn>1878-5204</eissn><abstract>CoAl oxides were prepared from the calcination of CoAl layered double hydroxides (LDHs, Co/Al = 2, 3 and 4) and applied to the selective oxidation of toluene to benzaldehyde using
tert
-butylhydroperoxide as the oxidant. These samples were characterized by XRD, SEM, BET, DR-UV–Vis, XPS, FTIR and CO
2
-TPD techniques to explain their catalytic properties. The influence of various reaction parameters, such as reaction temperature, reaction time, content of catalyst, substrate/oxidant mole ratio and nature of solvent on the activity and selectivity of aldehyde was evaluated. Co
4
Al oxide showed a maximum conversion of toluene of 8.2 % with 77.6 % selectivity towards benzaldehyde under the optimized conditions. The moderate basic sites on the CoAl oxides and the increased Co
3
O
4
content may be responsible for the catalytic activity and selectivity. Repeated runs showed that the catalyst was stable for at least five cycles without obvious changes of catalytic activity and selectivity.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11144-015-0833-4</doi><tpages>13</tpages></addata></record> |
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| subjects | Benzaldehyde Catalysis Catalysts Chemistry Chemistry and Materials Science Coal Industrial Chemistry/Chemical Engineering Oxidants Oxidation Oxides Physical Chemistry Selectivity Toluene |
| title | Selective oxidation of toluene to benzaldehyde in liquid phase over CoAl oxides prepared from hydrotalcite-like precursors |
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