Sequential dehydration of sorbitol to isosorbide over acidified niobium oxides
Isosorbide is a bio-based functional diol, which is prepared by sequential dehydration of sorbitol and widely used in plasticizers, monomers, solvents or pharmaceuticals. In this study, a variety of acidified Nb 2 O 5 catalysts were prepared and used for the sequential dehydration of sorbitol to iso...
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| Veröffentlicht in: | Catalysis science & technology 2021-06, Vol.11 (12), p.4226-4234 |
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| creator | Guo, Jiaxing Song, Yongji Liu, Shanshan Huang, Long Wang, Xincheng Li, Cuiqing |
| description | Isosorbide is a bio-based functional diol, which is prepared by sequential dehydration of sorbitol and widely used in plasticizers, monomers, solvents or pharmaceuticals. In this study, a variety of acidified Nb
2
O
5
catalysts were prepared and used for the sequential dehydration of sorbitol to isosorbide. Acidification can effectively regulate the surface acidity of catalysts, which was measured by pyridine infrared spectroscopy and NH
3
-TPD analysis. The catalytic performance was related to the surface acidity, including the reaction temperature and the amount of catalysts. After optimization of reaction conditions, the yield of isosorbide reached 84.1% with complete sorbitol conversion during reaction at 150 °C for 3 h over 2 M sulfuric acid modified Nb
2
O
5
. Finally, the reaction mechanism regarding the role of Lewis acid sites was discussed. This study is of great significance for further development of an efficient catalytic system for the dehydration of carbohydrates to isosorbide.
The synergy of Brønsted and Lewis acid sites facilitated the sequential dehydration of sorbitol to isosorbide under solvent-free conditions. |
| doi_str_mv | 10.1039/d1cy00326g |
| format | Article |
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2
O
5
catalysts were prepared and used for the sequential dehydration of sorbitol to isosorbide. Acidification can effectively regulate the surface acidity of catalysts, which was measured by pyridine infrared spectroscopy and NH
3
-TPD analysis. The catalytic performance was related to the surface acidity, including the reaction temperature and the amount of catalysts. After optimization of reaction conditions, the yield of isosorbide reached 84.1% with complete sorbitol conversion during reaction at 150 °C for 3 h over 2 M sulfuric acid modified Nb
2
O
5
. Finally, the reaction mechanism regarding the role of Lewis acid sites was discussed. This study is of great significance for further development of an efficient catalytic system for the dehydration of carbohydrates to isosorbide.
The synergy of Brønsted and Lewis acid sites facilitated the sequential dehydration of sorbitol to isosorbide under solvent-free conditions.</description><identifier>ISSN: 2044-4753</identifier><identifier>EISSN: 2044-4761</identifier><identifier>DOI: 10.1039/d1cy00326g</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Acidification ; Ammonia ; Carbohydrates ; Catalysts ; Dehydration ; Infrared analysis ; Lewis acid ; Niobium oxides ; Optimization ; Raman spectra ; Reaction mechanisms ; Sorbitol ; Spectrum analysis ; Sulfuric acid</subject><ispartof>Catalysis science & technology, 2021-06, Vol.11 (12), p.4226-4234</ispartof><rights>Copyright Royal Society of Chemistry 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c281t-bf35c0590414e27e63282557da93b245b57dd8d752469cd29c9f40e21106cce13</citedby><cites>FETCH-LOGICAL-c281t-bf35c0590414e27e63282557da93b245b57dd8d752469cd29c9f40e21106cce13</cites><orcidid>0000-0003-1055-3904</orcidid></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>Guo, Jiaxing</creatorcontrib><creatorcontrib>Song, Yongji</creatorcontrib><creatorcontrib>Liu, Shanshan</creatorcontrib><creatorcontrib>Huang, Long</creatorcontrib><creatorcontrib>Wang, Xincheng</creatorcontrib><creatorcontrib>Li, Cuiqing</creatorcontrib><title>Sequential dehydration of sorbitol to isosorbide over acidified niobium oxides</title><title>Catalysis science & technology</title><description>Isosorbide is a bio-based functional diol, which is prepared by sequential dehydration of sorbitol and widely used in plasticizers, monomers, solvents or pharmaceuticals. In this study, a variety of acidified Nb
2
O
5
catalysts were prepared and used for the sequential dehydration of sorbitol to isosorbide. Acidification can effectively regulate the surface acidity of catalysts, which was measured by pyridine infrared spectroscopy and NH
3
-TPD analysis. The catalytic performance was related to the surface acidity, including the reaction temperature and the amount of catalysts. After optimization of reaction conditions, the yield of isosorbide reached 84.1% with complete sorbitol conversion during reaction at 150 °C for 3 h over 2 M sulfuric acid modified Nb
2
O
5
. Finally, the reaction mechanism regarding the role of Lewis acid sites was discussed. This study is of great significance for further development of an efficient catalytic system for the dehydration of carbohydrates to isosorbide.
The synergy of Brønsted and Lewis acid sites facilitated the sequential dehydration of sorbitol to isosorbide under solvent-free conditions.</description><subject>Acidification</subject><subject>Ammonia</subject><subject>Carbohydrates</subject><subject>Catalysts</subject><subject>Dehydration</subject><subject>Infrared analysis</subject><subject>Lewis acid</subject><subject>Niobium oxides</subject><subject>Optimization</subject><subject>Raman spectra</subject><subject>Reaction mechanisms</subject><subject>Sorbitol</subject><subject>Spectrum analysis</subject><subject>Sulfuric acid</subject><issn>2044-4753</issn><issn>2044-4761</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpFkEFLxDAQhYMouKx78S4EvAnVZJK0zVGqrsKiB_XgqbRJqlm6zZq0Yv-9cSvrXOYN8zFveAidUnJJCZNXmqqREAbp-wGaAeE84VlKD_dasGO0CGFNYnFJSQ4z9PhsPgfT9bZqsTYfo_ZVb12HXYOD87XtXYt7h21wu1Eb7L6Mx5Wy2jbWaNxZV9thg913XIYTdNRUbTCLvz5Hr3e3L8V9snpaPhTXq0RBTvukbphQREjCKTeQmZRBDkJkupKsBi7qKHWuMwE8lUqDVLLhxAClJFXKUDZH59PdrXfx_9CXazf4LlqWIDjjIFKWRepiopR3IXjTlFtvN5UfS0rK38jKG1q87SJbRvhsgn1Qe-4_UvYD-jhnow</recordid><startdate>20210621</startdate><enddate>20210621</enddate><creator>Guo, Jiaxing</creator><creator>Song, Yongji</creator><creator>Liu, Shanshan</creator><creator>Huang, Long</creator><creator>Wang, Xincheng</creator><creator>Li, Cuiqing</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0003-1055-3904</orcidid></search><sort><creationdate>20210621</creationdate><title>Sequential dehydration of sorbitol to isosorbide over acidified niobium oxides</title><author>Guo, Jiaxing ; Song, Yongji ; Liu, Shanshan ; Huang, Long ; Wang, Xincheng ; Li, Cuiqing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c281t-bf35c0590414e27e63282557da93b245b57dd8d752469cd29c9f40e21106cce13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Acidification</topic><topic>Ammonia</topic><topic>Carbohydrates</topic><topic>Catalysts</topic><topic>Dehydration</topic><topic>Infrared analysis</topic><topic>Lewis acid</topic><topic>Niobium oxides</topic><topic>Optimization</topic><topic>Raman spectra</topic><topic>Reaction mechanisms</topic><topic>Sorbitol</topic><topic>Spectrum analysis</topic><topic>Sulfuric acid</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guo, Jiaxing</creatorcontrib><creatorcontrib>Song, Yongji</creatorcontrib><creatorcontrib>Liu, Shanshan</creatorcontrib><creatorcontrib>Huang, Long</creatorcontrib><creatorcontrib>Wang, Xincheng</creatorcontrib><creatorcontrib>Li, Cuiqing</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>Guo, Jiaxing</au><au>Song, Yongji</au><au>Liu, Shanshan</au><au>Huang, Long</au><au>Wang, Xincheng</au><au>Li, Cuiqing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sequential dehydration of sorbitol to isosorbide over acidified niobium oxides</atitle><jtitle>Catalysis science & technology</jtitle><date>2021-06-21</date><risdate>2021</risdate><volume>11</volume><issue>12</issue><spage>4226</spage><epage>4234</epage><pages>4226-4234</pages><issn>2044-4753</issn><eissn>2044-4761</eissn><abstract>Isosorbide is a bio-based functional diol, which is prepared by sequential dehydration of sorbitol and widely used in plasticizers, monomers, solvents or pharmaceuticals. In this study, a variety of acidified Nb
2
O
5
catalysts were prepared and used for the sequential dehydration of sorbitol to isosorbide. Acidification can effectively regulate the surface acidity of catalysts, which was measured by pyridine infrared spectroscopy and NH
3
-TPD analysis. The catalytic performance was related to the surface acidity, including the reaction temperature and the amount of catalysts. After optimization of reaction conditions, the yield of isosorbide reached 84.1% with complete sorbitol conversion during reaction at 150 °C for 3 h over 2 M sulfuric acid modified Nb
2
O
5
. Finally, the reaction mechanism regarding the role of Lewis acid sites was discussed. This study is of great significance for further development of an efficient catalytic system for the dehydration of carbohydrates to isosorbide.
The synergy of Brønsted and Lewis acid sites facilitated the sequential dehydration of sorbitol to isosorbide under solvent-free conditions.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d1cy00326g</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-1055-3904</orcidid></addata></record> |
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| ispartof | Catalysis science & technology, 2021-06, Vol.11 (12), p.4226-4234 |
| issn | 2044-4753 2044-4761 |
| language | eng |
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| source | Royal Society Of Chemistry Journals |
| subjects | Acidification Ammonia Carbohydrates Catalysts Dehydration Infrared analysis Lewis acid Niobium oxides Optimization Raman spectra Reaction mechanisms Sorbitol Spectrum analysis Sulfuric acid |
| title | Sequential dehydration of sorbitol to isosorbide over acidified niobium oxides |
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