Matches in SemOpenAlex for { <https://semopenalex.org/work/W2072912183> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2072912183 endingPage "458" @default.
- W2072912183 startingPage "453" @default.
- W2072912183 abstract "Organo-bridged silsesquioxane titanates for heterogeneous catalytic epoxidation with aqueous hydrogen peroxide were synthesized through the acid-catalyzed hydrolysis and co-condensation of organotrialkoxysilane monomers and α,ω-bis(trialkoxysilyl) alkane cross-linkers in ethanol–water solution, with subsequent titanium grafting. These hybrid catalysts show high activity and selectivity in the epoxidation of cyclooctene with both aqueous hydrogen peroxide and tert-butyl hydroperoxide (TBHP) as oxidants, although they are nonporous. The catalysts can be reused at least six times with no loss of activity with TBHP as the oxidant and at least four times (although with gradual activity loss) with aqueous H2O2 as the oxidant. Furthermore, the catalytic activities of these hybrid titanates relate to the nature and the composition of the starting materials used. The epoxidation activity of the catalysts using aqueous H2O2 as the oxidant seems to increase with increasing carbon length in the starting organosilane cross-linkers. UV–vis DRS and XPS measurements indicate that tetrahedrally coordinated Ti species are the active centers." @default.
- W2072912183 created "2016-06-24" @default.
- W2072912183 creator A5037785640 @default.
- W2072912183 creator A5040411653 @default.
- W2072912183 creator A5054512427 @default.
- W2072912183 creator A5083762424 @default.
- W2072912183 date "2007-10-01" @default.
- W2072912183 modified "2023-09-27" @default.
- W2072912183 title "Organo-bridged silsesquioxane titanates for heterogeneous catalytic epoxidation with aqueous hydrogen peroxide" @default.
- W2072912183 cites W1968975336 @default.
- W2072912183 cites W1972160815 @default.
- W2072912183 cites W1976243220 @default.
- W2072912183 cites W1976384941 @default.
- W2072912183 cites W1979091118 @default.
- W2072912183 cites W1982690742 @default.
- W2072912183 cites W1985284943 @default.
- W2072912183 cites W1987266658 @default.
- W2072912183 cites W1997473493 @default.
- W2072912183 cites W2015359915 @default.
- W2072912183 cites W2022968112 @default.
- W2072912183 cites W2023729001 @default.
- W2072912183 cites W2024447680 @default.
- W2072912183 cites W2034021299 @default.
- W2072912183 cites W2035500349 @default.
- W2072912183 cites W2040221048 @default.
- W2072912183 cites W2058849017 @default.
- W2072912183 cites W2063248458 @default.
- W2072912183 cites W2063899660 @default.
- W2072912183 cites W2068551734 @default.
- W2072912183 cites W2070601926 @default.
- W2072912183 cites W2072624447 @default.
- W2072912183 cites W2077570648 @default.
- W2072912183 cites W2091498782 @default.
- W2072912183 cites W2095331087 @default.
- W2072912183 cites W2140026338 @default.
- W2072912183 cites W2153945532 @default.
- W2072912183 cites W2162035353 @default.
- W2072912183 cites W2164684213 @default.
- W2072912183 doi "https://doi.org/10.1016/j.jcat.2007.07.023" @default.
- W2072912183 hasPublicationYear "2007" @default.
- W2072912183 type Work @default.
- W2072912183 sameAs 2072912183 @default.
- W2072912183 citedByCount "10" @default.
- W2072912183 countsByYear W20729121832012 @default.
- W2072912183 countsByYear W20729121832017 @default.
- W2072912183 countsByYear W20729121832019 @default.
- W2072912183 crossrefType "journal-article" @default.
- W2072912183 hasAuthorship W2072912183A5037785640 @default.
- W2072912183 hasAuthorship W2072912183A5040411653 @default.
- W2072912183 hasAuthorship W2072912183A5054512427 @default.
- W2072912183 hasAuthorship W2072912183A5083762424 @default.
- W2072912183 hasConcept C161790260 @default.
- W2072912183 hasConcept C175583648 @default.
- W2072912183 hasConcept C178790620 @default.
- W2072912183 hasConcept C184651966 @default.
- W2072912183 hasConcept C185592680 @default.
- W2072912183 hasConcept C188027245 @default.
- W2072912183 hasConcept C2779063765 @default.
- W2072912183 hasConcept C521977710 @default.
- W2072912183 hasConcept C533411734 @default.
- W2072912183 hasConceptScore W2072912183C161790260 @default.
- W2072912183 hasConceptScore W2072912183C175583648 @default.
- W2072912183 hasConceptScore W2072912183C178790620 @default.
- W2072912183 hasConceptScore W2072912183C184651966 @default.
- W2072912183 hasConceptScore W2072912183C185592680 @default.
- W2072912183 hasConceptScore W2072912183C188027245 @default.
- W2072912183 hasConceptScore W2072912183C2779063765 @default.
- W2072912183 hasConceptScore W2072912183C521977710 @default.
- W2072912183 hasConceptScore W2072912183C533411734 @default.
- W2072912183 hasIssue "2" @default.
- W2072912183 hasLocation W20729121831 @default.
- W2072912183 hasOpenAccess W2072912183 @default.
- W2072912183 hasPrimaryLocation W20729121831 @default.
- W2072912183 hasRelatedWork W1994137655 @default.
- W2072912183 hasRelatedWork W1997159574 @default.
- W2072912183 hasRelatedWork W2059224578 @default.
- W2072912183 hasRelatedWork W2070392259 @default.
- W2072912183 hasRelatedWork W2086435613 @default.
- W2072912183 hasRelatedWork W2095018307 @default.
- W2072912183 hasRelatedWork W2587361318 @default.
- W2072912183 hasRelatedWork W2911887096 @default.
- W2072912183 hasRelatedWork W2945556674 @default.
- W2072912183 hasRelatedWork W2289404139 @default.
- W2072912183 hasVolume "251" @default.
- W2072912183 isParatext "false" @default.
- W2072912183 isRetracted "false" @default.
- W2072912183 magId "2072912183" @default.
- W2072912183 workType "article" @default.