{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T12:55:22Z","timestamp":1762865722932,"version":"build-2065373602"},"reference-count":49,"publisher":"Wiley","issue":"45","license":[{"start":{"date-parts":[[2010,10,7]],"date-time":"2010-10-07T00:00:00Z","timestamp":1286409600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2010,12,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Porous titanosilicate beads with a diameter of 0.5\u20131.5\u2005mm (TiSil\u2010HPB\u201060) were synthesized from a preformed titanosilicate solution with a porous anion\u2010exchange resin as template. The bead format of this material enables its straightforward separation from the reaction mixture in its application as a liquid\u2010phase heterogeneous catalyst. The material displays hierarchical porosity (micro\/mesopores) and incipient TS\u20101 structure building units. The titanium species are predominantly located in tetrahedral framework positions. TiSil\u2010HPB\u201060 is a highly active catalyst for the epoxidation of cyclohexene with <jats:italic>t<\/jats:italic>\u2010butyl hydroperoxide (TBHP) and aqueous H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub>. With both oxidants, TiSil\u2010HPB\u201060 gave higher epoxide yields than Ti\u2010MCM\u201041 and TS\u20101. The improved catalytic performance of TiSil\u2010HPB\u201060 is mainly ascribed to the large mesopores favoring the diffusion of reagents and products to and from the titanium active sites. The epoxide yield and selectivity could be further improved by silylation of the titanosilicate beads. Importantly, TiSil\u2010HPB\u201060 is a stable catalyst immune to titanium leaching, and can be easily recovered and reused in successive catalytic cycles without significant loss of activity. Moreover, TiSil\u2010HPB\u201060 is active and selective in the epoxidation of a wide range of bulky alkenes.<\/jats:p>","DOI":"10.1002\/chem.201001508","type":"journal-article","created":{"date-parts":[[2010,10,7]],"date-time":"2010-10-07T10:46:01Z","timestamp":1286448361000},"page":"13509-13518","source":"Crossref","is-referenced-by-count":46,"title":["Titanosilicate Beads with Hierarchical Porosity: Synthesis and Application as Epoxidation Catalysts"],"prefix":"10.1002","volume":"16","author":[{"given":"Kaifeng","family":"Lin","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Oleg I.","family":"Lebedev","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gustaaf","family":"Van\u2005Tendeloo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pierre 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