Modification of Sn-Beta zeolite: characterization of acidic/basic properties and catalytic performance in Baeyer–Villiger oxidation
Sn-Beta was post-synthetically modified with various cations such as Li + , Na + , K + , Cs + , and NH 4 + . During the modification process, the ion-exchange of the cations with silanol groups occurred along with a reversible change between “closed” and “open” Sn sites through hydrolysis of the Si–...
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| Veröffentlicht in: | Catalysis science & technology 2016-01, Vol.6 (8), p.2787-2795 |
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| container_title | Catalysis science & technology |
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| creator | Otomo, Ryoichi Kosugi, Ryota Kamiya, Yuichi Tatsumi, Takashi Yokoi, Toshiyuki |
| description | Sn-Beta was post-synthetically modified with various cations such as Li
+
, Na
+
, K
+
, Cs
+
, and NH
4
+
. During the modification process, the ion-exchange of the cations with silanol groups occurred along with a reversible change between “closed” and “open” Sn sites through hydrolysis of the Si–O–Sn bonds. The IR study showed that Sn-Beta had weak Brønsted acid sites, which were passivated by the ion-exchange, in addition to the Lewis acid sites and that surprisingly, basic sites were formed on the modified zeolites. The ion-exchange with a small amount of Li
+
, Na
+
and NH
4
+
was effective for suppressing side-reactions, leading to an improvement in selectivity to caprolactone in the Baeyer–Villiger oxidation of cyclohexanone with H
2
O
2
. The modification of Sn-Beta with such cations also effectively enhanced the catalytic activity in the Baeyer–Villiger oxidation of 2-adamantanone. |
| doi_str_mv | 10.1039/C6CY00532B |
| format | Article |
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+
, Na
+
, K
+
, Cs
+
, and NH
4
+
. During the modification process, the ion-exchange of the cations with silanol groups occurred along with a reversible change between “closed” and “open” Sn sites through hydrolysis of the Si–O–Sn bonds. The IR study showed that Sn-Beta had weak Brønsted acid sites, which were passivated by the ion-exchange, in addition to the Lewis acid sites and that surprisingly, basic sites were formed on the modified zeolites. The ion-exchange with a small amount of Li
+
, Na
+
and NH
4
+
was effective for suppressing side-reactions, leading to an improvement in selectivity to caprolactone in the Baeyer–Villiger oxidation of cyclohexanone with H
2
O
2
. The modification of Sn-Beta with such cations also effectively enhanced the catalytic activity in the Baeyer–Villiger oxidation of 2-adamantanone.</description><identifier>ISSN: 2044-4753</identifier><identifier>EISSN: 2044-4761</identifier><identifier>DOI: 10.1039/C6CY00532B</identifier><language>eng</language><subject>Catalysis ; Cations ; Lewis acid ; Oxidation ; Retarding ; Tin ; Zeolites</subject><ispartof>Catalysis science & technology, 2016-01, Vol.6 (8), p.2787-2795</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c367t-853b6ef093890f384e517f49c58386c22268d905e2e982d24e70dfed3d37dc473</citedby><cites>FETCH-LOGICAL-c367t-853b6ef093890f384e517f49c58386c22268d905e2e982d24e70dfed3d37dc473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Otomo, Ryoichi</creatorcontrib><creatorcontrib>Kosugi, Ryota</creatorcontrib><creatorcontrib>Kamiya, Yuichi</creatorcontrib><creatorcontrib>Tatsumi, Takashi</creatorcontrib><creatorcontrib>Yokoi, Toshiyuki</creatorcontrib><title>Modification of Sn-Beta zeolite: characterization of acidic/basic properties and catalytic performance in Baeyer–Villiger oxidation</title><title>Catalysis science & technology</title><description>Sn-Beta was post-synthetically modified with various cations such as Li
+
, Na
+
, K
+
, Cs
+
, and NH
4
+
. During the modification process, the ion-exchange of the cations with silanol groups occurred along with a reversible change between “closed” and “open” Sn sites through hydrolysis of the Si–O–Sn bonds. The IR study showed that Sn-Beta had weak Brønsted acid sites, which were passivated by the ion-exchange, in addition to the Lewis acid sites and that surprisingly, basic sites were formed on the modified zeolites. The ion-exchange with a small amount of Li
+
, Na
+
and NH
4
+
was effective for suppressing side-reactions, leading to an improvement in selectivity to caprolactone in the Baeyer–Villiger oxidation of cyclohexanone with H
2
O
2
. The modification of Sn-Beta with such cations also effectively enhanced the catalytic activity in the Baeyer–Villiger oxidation of 2-adamantanone.</description><subject>Catalysis</subject><subject>Cations</subject><subject>Lewis acid</subject><subject>Oxidation</subject><subject>Retarding</subject><subject>Tin</subject><subject>Zeolites</subject><issn>2044-4753</issn><issn>2044-4761</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpFkMtKAzEUhoMoWGo3PkGWIozNJJmZjDs7eIOKCy_gakiTE41MJzVJwenKjU_gG_okTq3UszkH_o-Pw4_QYUpOUsLKcZVXT4RkjE520IASzhNe5Onu9s7YPhqF8Er64WVKBB2gzxunrbFKRuta7Ay-a5MJRIlX4Bob4RSrF-mliuDtagtJZbVV45kMVuGFdwvw0ULAstW4V8mmi-sAvHF-LlsF2LZ4IqED__3x9Wibxj6Dx-7d6l_nAdozsgkw-ttD9HBxfl9dJdPby-vqbJoolhcxERmb5WBIyURJDBMcsrQwvFSZYCJXlNJc6JJkQKEUVFMOBdEGNNOs0IoXbIiONt7-57clhFjPbVDQNLIFtwx1KoggWcE47dHjDaq8C8GDqRfezqXv6pTU67rr_7rZD-fPdLo</recordid><startdate>20160101</startdate><enddate>20160101</enddate><creator>Otomo, Ryoichi</creator><creator>Kosugi, Ryota</creator><creator>Kamiya, Yuichi</creator><creator>Tatsumi, Takashi</creator><creator>Yokoi, Toshiyuki</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20160101</creationdate><title>Modification of Sn-Beta zeolite: characterization of acidic/basic properties and catalytic performance in Baeyer–Villiger oxidation</title><author>Otomo, Ryoichi ; Kosugi, Ryota ; Kamiya, Yuichi ; Tatsumi, Takashi ; Yokoi, Toshiyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c367t-853b6ef093890f384e517f49c58386c22268d905e2e982d24e70dfed3d37dc473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Catalysis</topic><topic>Cations</topic><topic>Lewis acid</topic><topic>Oxidation</topic><topic>Retarding</topic><topic>Tin</topic><topic>Zeolites</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Otomo, Ryoichi</creatorcontrib><creatorcontrib>Kosugi, Ryota</creatorcontrib><creatorcontrib>Kamiya, Yuichi</creatorcontrib><creatorcontrib>Tatsumi, Takashi</creatorcontrib><creatorcontrib>Yokoi, Toshiyuki</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Catalysis science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Otomo, Ryoichi</au><au>Kosugi, Ryota</au><au>Kamiya, Yuichi</au><au>Tatsumi, Takashi</au><au>Yokoi, Toshiyuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modification of Sn-Beta zeolite: characterization of acidic/basic properties and catalytic performance in Baeyer–Villiger oxidation</atitle><jtitle>Catalysis science & technology</jtitle><date>2016-01-01</date><risdate>2016</risdate><volume>6</volume><issue>8</issue><spage>2787</spage><epage>2795</epage><pages>2787-2795</pages><issn>2044-4753</issn><eissn>2044-4761</eissn><abstract>Sn-Beta was post-synthetically modified with various cations such as Li
+
, Na
+
, K
+
, Cs
+
, and NH
4
+
. During the modification process, the ion-exchange of the cations with silanol groups occurred along with a reversible change between “closed” and “open” Sn sites through hydrolysis of the Si–O–Sn bonds. The IR study showed that Sn-Beta had weak Brønsted acid sites, which were passivated by the ion-exchange, in addition to the Lewis acid sites and that surprisingly, basic sites were formed on the modified zeolites. The ion-exchange with a small amount of Li
+
, Na
+
and NH
4
+
was effective for suppressing side-reactions, leading to an improvement in selectivity to caprolactone in the Baeyer–Villiger oxidation of cyclohexanone with H
2
O
2
. The modification of Sn-Beta with such cations also effectively enhanced the catalytic activity in the Baeyer–Villiger oxidation of 2-adamantanone.</abstract><doi>10.1039/C6CY00532B</doi><tpages>9</tpages></addata></record> |
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| ispartof | Catalysis science & technology, 2016-01, Vol.6 (8), p.2787-2795 |
| issn | 2044-4753 2044-4761 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1808057342 |
| source | Royal Society Of Chemistry Journals; Alma/SFX Local Collection |
| subjects | Catalysis Cations Lewis acid Oxidation Retarding Tin Zeolites |
| title | Modification of Sn-Beta zeolite: characterization of acidic/basic properties and catalytic performance in Baeyer–Villiger oxidation |
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